Fun fact, I'm a journeyman Welder 14 years. We use tungsten electrodes for T.I.G (Tungsten Inert Gas) welding. The tungsten electrode makes short contact with the metal to be welded, current then flows from the tungsten electrode to the metal to be welded, and filler material is hand dipped into the molten puddle, created by the electrical current. The Tungsten electrode is held by a special hand torch which also supplies an inert gas (argon) to protect the weld from our atmosphere. The tungsten electrode does not melt from the current, unlike stick (SMAW) welding. The polarity (way which the current flows) is opposite to other welding processes to prevent heat from melting the tungsten. If you have the polarity wrong, the tungsten electrode basically vaporizes 🤣
Or just set the balance way down on AC and the tungsten will melt very quickly with 200 amps or so. I imagine 350 amp TIG machines would melt a thin tungsten electrode in less than a second with the balance low.
In tig welding of aluminum, we used reverse polarity with the electrons going from the work to the tungsten electrode melting it into a shiny ball. The positive argon ions moving from the electrode to the aluminum blasted away the aluminum oxide film on the aluminum work piece and allowed it to flow together with the welding rod. High current was required to melt the aluminum quickly at the weld before the heat spread to the rest oh the workpiece causing the whole thing to melt due to its high conductivity and low melting point. The tig unit had a timer that kept the argon flowing after the arc was turned off until the tungsten cooled below its oxidization point.
@@jpkoski unless you're tig welding deep welds, in which case you use DC because it penetrates the metal more, unless you enjoy multiple ac passes. Bad idea to correct someone when you don't know what you're talking about.
@@tonystark5261 e podia ser todo nosso. Mas os entreguistas de direita, cambada de privatizador, venderam a Vale para os gringos. Agora o Nióbio pertence a outro país. O mesmo que essa cambada quer fazer com o nosso petróleo. Sabe quem tá doido para que nosso país privatize a Petrobrás? Os chineses.
The land where is easier to obtain rare metal samples and high temperature torch, but finding safety equipment is extremely difficult. Take care of your self, we need this channel.
To be fair, the metals are from Luciteria which means it’s very easy to source pretty much every single metal on the periodic table aside from some of the EXTREMELY rare ones. (You know, the ones with only 20-50g on earth at any one time…)
The absence of personal safety protection is amazing! The exception was some kind of gloves flushed on the screen for a brief second . Reminded me the vide of some sand casting foundry in Bangladesh... Besides that, a good educational material.
The reason why Molybdenum melted slower than Tantalum is probably because the Molybdenum-Oxide acted as an Oblative heat shield and carried the heat away from the Metal
Yes....exactly! The hogendarf affect. All heat resistant plastics experience this affect when the oxidizer parameters exceed maximum stability focus points. Hense the thick smoke. 🤓 🤓 🤓
@@dushas9871 You both made a point but OC wrote "videos" so "these" would have been more fitting. Also I think OC doesn't give a flying rat's a** about this whole conversation.
@@nocturnaljoe9543 I don't think it's correct, though. Since "this" refers to "kind" and not "videos". And since you can't say "kind of video", but "kind of videos" is a perfectly correct singular form, "This - is" is the only correct variant here.
When doing some semi-related research on ceramics for extreme heat resistant applications last year, I came across an article detailing the manufacture of Hafnium Carbide. The lab doing their due diligence didn't have a torch hot enough to actually melt their sample and resorted to lasers (!!) to get the job done. If memory serves, the melting point was eventually found to be at or slightly above 4K Celsius. Not sure it'd be too easy to obtain a sample, but I suspect it's out there somewhere. The proposed use of this metal was being tested for heat shields on spacecraft and in-atmosphere hypersonic aircraft panels.
Hafnium is actually very useful in nuclear power. The combination of it's absorption cross section, chemical/mechanical properties and 6 stable isotopes make it an excellent material to make control rods out of. You can actually use them in a couple cores, as they remain "neutron black" over extended exposure to operating conditions.
High voltage/amperage electric arc will certainly do it.... nothing quite as annoying as contaminating your weld with a molten glob of your electrode....
@@Toxicity1987 true enough! But I never welded tungsten, always steel. (Would love learn how to weld more metals though, like aluminum and magnesium though. Just to spice it up)
@@StarScapesOG alu welding is easy enough. but something i didn't know was that there are alu welding electrodes. most of the time alu is tig. magnesium alloys are tricky but fun. but the most fun is the weird metals like lead. copper is also fun because of how conductive it is. all depends on what jobs are close to you. alu, steel and magnesium are good things to know
That was actually very dangerous and stupid of him to do in an area with no fumehood, and not wearing any sort of gas mask....He legit could have killed himself if a breeze blew into his shop and he got a thick few whiffs of that.... Please do not do that in ur garage at home backyard scientists....
@@k-aw-teksleepysageuni8181 There was a good draft there forced or otherwise. Did you notice how turbulent the smoke rising was and it rose away from the torcher? Now don't you have a basement to cower in, fully masked and in fear of catching something? You safety nazis .. if not nanny'ing you guys would have nothing to say ..
@@xenuno Yes I did, but wind is not always predictable and if it changed direction momentarily that shop would have been filled with toxic smoke. How is being safe being a "nazi", if anything, by spouting off on your rant you are an unsafe "nazi".... Go figure....
This is cool. Plain and simple. Could you supply the plasma torch with argon? And actually weld tungsten. Ive done plenty of welding. Stick. Mig. Tig. But this is cool
i was thinking the same thing, but i am pretty sure that plasma cutters use compressed air, so there might be some logistical issues with trying to substitute with argon. i do imagine that it is possible, just a pain in the ass, or very jerry rigged.
I love your accent! When you say air, it sounds like ear, so it sounded like you were saying the metal oxidized in the ear! It made me sit up and play it over to see what I misunderstood, then it made me smile! My only concern was your lungs! The oxides the metals were producing reminded me of welding zinc, the oxide is so bad, you need a respirator for safety! I hope you were wearing one when you were doing the melting? Thank you for the education! It helps keep my mind young, even tho my body isn't!
.........ACTUALLY I ALMOST DO NOT HAVE ANY OF ACCENTS EVEN THOUGH I'M RUSSIAN SPEAKER LIKE THIS ONE .........HE DOES NEED MUCH MORE PRACTICE=..........OR MAYBE HE JUST DOES NOT KNOW THE LANGUAGE AND READING FROM A PAPER...
AC TIG is not the best method for what you want to do. As you saw, the electrode received a lot of heat. Use DC electrode negative. This will impart a great deal of heat to the workpiece, rather than the electrode.
The lack of reasearch (well, 5min google) in this kind of video is beyond me. And they didnt clean the torch nozzle, just look at it, its SO sad. But I guess they cant afford much (spending time and money) with only 700'000 subscribers, doing ~1 Video per month.
Interesting video. I didn't realize that some of these metals were so refractory. For a long time it was thought that niobium and tantalum were one element as they are normally are mixed together in there ores. This mixture was called Columbia, symbol Cb. After columbium was separated the lighter element was still called columbium but later was called niobium. I used to have an old dictionary that listed the chemical elements and it listed columbium.
One of my favorite metallurgical studies: Refractory metals. I always thought Molybdenum was 2nd to Tungsten.. Thanks for the hands on here. My second thought would be ultra high flame temperatures from exotic compounds such as dicyanoacetylene (4990 C burning temp in Oxygen). Put it with Ozone that temp rises to 5726 C! Almost 11,000 F!!! Piercing green flame is what I want to see..
@@taiwanluthiers Good tip. The only cheap (free) source I know is the filament supports in a incandescent light bulb. Green flame test verified molybdenum wire.
As an aspiring metallurgist, I can say that the plasma flame maybe vaporizing elemental tungsten a little, but the heat actually oxidizing tungsten (more true if you use oxidizing gas to create plasma, even carbon dioxide can be oxidizing in contact of many metals at high heat) which is undergoing sublimation at much lower 550 degrees Celsius. See that yellowish spot left after cutting tungsten with plasma torch? That is oxide of tungsten.
Molybdenum had another factor working against it: Phase Change. As it moved from Solid to Liquid and reacted with the oxygen, it was gasifying, which sucked the energy from the metal and caused it to drop in temperature below the melting point.
awesome video. one of my recent favorites. it would be quite interesting to see you cover refractory ceramics. I hear halfnium nitride and halfnium diboride are quite impressive I would like to see how they yield to the plasma torch. I wonder how we will create more high temp materials in the future. perhaps transplutonics with high neutron counts will be stable. they cannot be made the way we create their lighter isotopes and I believe this is where we will find the island of stability. we must some how mimic the rapid neutron flux process in supernova to reach it. I hope we find these in supernova remnants to encourage us to develop such a technology. astronomers get on it, ask the people at darmstat what spectroscopic signal to look for.
Random question, When you melted Molybdenum, you got some crystals. What are the heat resistance properties of the crystals and can you make a 1x1in square for testing? I really enjoy your lessons! Thank you!
I was just wondering what eye protection you wore during this demonstration because many people don't realize how extremely bright that metal becomes when you melt it .
Yeah right. It melts anything and it welds brick to metal and the temperature it produces depends on the material in flame and it washes your dishes etc. Get your flame temperatures right buddy.
Thanks for the informative video I always wait for your newly uploaded video, the rhenium burning with green flame was awesome and now I realized why metal filaments in bulbs are encapsulated in air tight glass structures.
try melting carbon! though i think it sublimates but im not sure but i never say anyone doing the plasma thing with a carbon rod > in an inert atmosphere
I find that titanium actually can catch fire in a nitrogen atmosphere interesting. It would make good ablative external hull armor on a space faring ship due to it high melting point and it's combustion. Using a tungsten/titanium under/overlay as hullplating could eat heat from solar winds, slingshot maneuvers, and heat based energy weapons like lasers.
@@SSmith-fm9kg I knew this. But my over/underlay idea tale it higher as a heat dissipation system. If you went to the next level, make it convert the heat into power.
To get a lot better contrast on those shots of melting/burning metal (i.e. get the image looking more like it does to you in real life), try picking up a cheap infrared filter!
As graphite holds up better than most rods I've seen, would using a graphite rod do the trick? Or would it simply introduce too much carbon into the system?
Plasma cutters are no joke, i used to have to use them when i worked in steel stamping plant, some of the coils were a half inch thick and they had to be cut with plasma only when feeding into the die or extracting scrap strip from the coil
You are incredible, and you english is quite clear and accurate. I enjoyed this video and get the majority of the informations with high understanding.
you missed one metal that has about the same melting point as tungsten, That is osmium (Os) but I do not blame you for not including it as it's fumes are poisonous.
6:45 The first time I watched this, I heard "chemical enemas" instead of "chemical eliments" at this point. A molten refractory enema would be a whole other world of horror.
I am always shitting bricks when I see you handle the grinder with one hand bro. Get's me flash backs of when my grinder got stuck and jumped off. Edit: Look at this bada**: 15:30
@@paulpaulsen7777 On the main channel, he is often in the frame himself and from time to time tastes something from his experiments. For example, he grew mutant radishes or made whiskey using ultrasound.
@@rasbatler921 Ah, ok 👌 Thank you. I didn’t see those yet. Until now I only found the videos about the different elements, which I always love. Thank you for the hint, I will have a look. I like this guy, the way he explains and his topics
As a Industrial mechanik i can tell you that you have to put the little flame at the beginning of the burner around two to three milimeter away from the metal
Hafnium is actually very useful in the nuclear power industry. Not only does it absorb neutrons very well, but it has 5 isotopes in a row that will do so and remain stable (Meaning one atom can absorb 5 neutrons, whereas the average uranium atom releases on average about 2.5 when it splits). For this reason, it is used in control rods to control temperature in steady-state operation, and to shut down the reactor entirely. If a nuclear reactor is increasing in power at an uncontrollable rate, the control rods can be effectively spring-launched from their current position (Even fully withdrawn) to the fully inserted position, and shut down the reactor in under a second.
Many of us do, in fact, encounter Zirconium in a daily lives. Not in a pure form though. Zirconium dioxide is used in dentistry for a production of extremely wear resistant implants.
Fun fact, I'm a journeyman Welder 14 years. We use tungsten electrodes for T.I.G (Tungsten Inert Gas) welding. The tungsten electrode makes short contact with the metal to be welded, current then flows from the tungsten electrode to the metal to be welded, and filler material is hand dipped into the molten puddle, created by the electrical current. The Tungsten electrode is held by a special hand torch which also supplies an inert gas (argon) to protect the weld from our atmosphere. The tungsten electrode does not melt from the current, unlike stick (SMAW) welding. The polarity (way which the current flows) is opposite to other welding processes to prevent heat from melting the tungsten. If you have the polarity wrong, the tungsten electrode basically vaporizes 🤣
Thank u for typing this much. 🥰🤗
We need more people like you 😀
Interesting.
Or just set the balance way down on AC and the tungsten will melt very quickly with 200 amps or so. I imagine 350 amp TIG machines would melt a thin tungsten electrode in less than a second with the balance low.
So then does TIG welding require Direct Current?
@@petemclinc yes, but A.C high frequency is used for aluminum welding.
I feel like I’m getting a science lesson from the borats son and it’s honestly amazing.
Exactly what I think every time🤣🤣🤣
🤣
Well said.
🤣🤣🤣🤣👌 made my Day
Verrrrry niiiiiiiiice
In tig welding of aluminum, we used reverse polarity with the electrons going from the work to the tungsten electrode melting it into a shiny ball. The positive argon ions moving from the electrode to the aluminum blasted away the aluminum oxide film on the aluminum work piece and allowed it to flow together with the welding rod. High current was required to melt the aluminum quickly at the weld before the heat spread to the rest oh the workpiece causing the whole thing to melt due to its high conductivity and low melting point. The tig unit had a timer that kept the argon flowing after the arc was turned off until the tungsten cooled below its oxidization point.
AC. You TIG weld aluminum using AC.
@@jpkoski unless you're tig welding deep welds, in which case you use DC because it penetrates the metal more, unless you enjoy multiple ac passes. Bad idea to correct someone when you don't know what you're talking about.
@@lazyh-online4839 because of skin effect?
Tig life
quick question about AC welding with GTAW, does the sine wave of alternating current allow for a weld with more heat but less heat transfer
Niobium is often used for making the nozzles of rockets. The Nozzles of the Merlin and Raptor engines from SpaceX are made out of an Niobium alloy.
woah, never knew that...
Cool story bro.
As alloys not pure form
niobium is propiety of brazil hahahaha goooooo brazillll
@@tonystark5261 e podia ser todo nosso. Mas os entreguistas de direita, cambada de privatizador, venderam a Vale para os gringos. Agora o Nióbio pertence a outro país. O mesmo que essa cambada quer fazer com o nosso petróleo. Sabe quem tá doido para que nosso país privatize a Petrobrás? Os chineses.
The land where is easier to obtain rare metal samples and high temperature torch, but finding safety equipment is extremely difficult. Take care of your self, we need this channel.
Thiz iz RUSSIAN my friendz.
@@Gunz1234 Pretty sure he's from Estonia
To be fair, the metals are from Luciteria which means it’s very easy to source pretty much every single metal on the periodic table aside from some of the EXTREMELY rare ones. (You know, the ones with only 20-50g on earth at any one time…)
The absence of personal safety protection is amazing! The exception was some kind of gloves flushed on the screen for a brief second . Reminded me the vide of some sand casting foundry in Bangladesh... Besides that, a good educational material.
I like how Russians are so tough they don’t wear any protective gear like us weak Americans, they only need their pyjamas😂
Tungsten melting starts at 13:00
Were you dreaming?
Tongue stun
Good lord that's a lot of filler
😹😹😹
but I thought it starts at 3422
The reason why Molybdenum melted slower than Tantalum is probably because the Molybdenum-Oxide acted as an Oblative heat shield and carried the heat away from the Metal
just like steam from water, but with the additional effect of adding a surface that blocks heat itself.
@@thomasneal9291You mean Leidenfrost effect?
Yes....exactly! The hogendarf affect. All heat resistant plastics experience this affect when the oxidizer parameters exceed maximum stability focus points. Hense the thick smoke. 🤓 🤓 🤓
This is so educational. You should put together a lesson plan, and distribute this to chemistry classes. It’s really good.
This kind of videos is the reason I pay for internet
These kinds of videos are the reason I pay for internet . You mean . The internet is also good for learning how to write English.
@@johnnysilverhand3918 ? He means this kind in particular. So THIS KIND of videos IS the reason.
@@dushas9871 You both made a point but OC wrote "videos" so "these" would have been more fitting. Also I think OC doesn't give a flying rat's a** about this whole conversation.
@@nocturnaljoe9543 I don't think it's correct, though. Since "this" refers to "kind" and not "videos". And since you can't say "kind of video", but "kind of videos" is a perfectly correct singular form, "This - is" is the only correct variant here.
@@dushas9871 I don't see it this way. I would still write "these kind of videos", as it refers to the subject "videos".
Santa Claus can put those cube samples in my stocking this year!
Same but in ring form instead (I already have a tungsten ring though)
That would rip the stocking off your fireplace but I want dem cubes as well
I want them. I *need* them!
Ask dad not 🎅
@@iSMoKeKRoNic Dad told me to ask Santa for them.
When doing some semi-related research on ceramics for extreme heat resistant applications last year, I came across an article detailing the manufacture of Hafnium Carbide. The lab doing their due diligence didn't have a torch hot enough to actually melt their sample and resorted to lasers (!!) to get the job done. If memory serves, the melting point was eventually found to be at or slightly above 4K Celsius. Not sure it'd be too easy to obtain a sample, but I suspect it's out there somewhere. The proposed use of this metal was being tested for heat shields on spacecraft and in-atmosphere hypersonic aircraft panels.
Hafnium is actually very useful in nuclear power. The combination of it's absorption cross section, chemical/mechanical properties and 6 stable isotopes make it an excellent material to make control rods out of. You can actually use them in a couple cores, as they remain "neutron black" over extended exposure to operating conditions.
I think graphite ones are sufficient. XD
And u use it for your the sextoys , right?
Sodium used as a coolent also has that property.
... of its* absorbtion cross section (it's = it is)
@@EddieVBlueIsland ... coolant* ...
This guy legit has answers to the questions I didn't even know I had. Really enjoy your content man.
All you needed to do with the TIG welder was to run it DC electrode positive. 50 amps through a 1.6 mm electrode and bingo! molten tungsten!
High voltage/amperage electric arc will certainly do it.... nothing quite as annoying as contaminating your weld with a molten glob of your electrode....
@@StarScapesOG I mean if you weld tungsten, you don't have to worry about contamination.
@@Toxicity1987 true enough! But I never welded tungsten, always steel. (Would love learn how to weld more metals though, like aluminum and magnesium though. Just to spice it up)
@@StarScapesOG alu welding is easy enough. but something i didn't know was that there are alu welding electrodes. most of the time alu is tig. magnesium alloys are tricky but fun. but the most fun is the weird metals like lead. copper is also fun because of how conductive it is. all depends on what jobs are close to you. alu, steel and magnesium are good things to know
@@BasicEndjo it's more a case of never had the opportunity to learn. I would enjoy it for sure though!
10:17 Compared to breathing in those wicked crystals, asbestos might look like Rocky Mountain air.
That was actually very dangerous and stupid of him to do in an area with no fumehood, and not wearing any sort of gas mask....He legit could have killed himself if a breeze blew into his shop and he got a thick few whiffs of that....
Please do not do that in ur garage at home backyard scientists....
@@k-aw-teksleepysageuni8181 agreed, I can't believe he wasn't wearing any PPE during this. Metal Oxides are no joke to breathe in
@The Grim Reaper yea can confirm
@@k-aw-teksleepysageuni8181 There was a good draft there forced or otherwise. Did you notice how turbulent the smoke rising was and it rose away from the torcher? Now don't you have a basement to cower in, fully masked and in fear of catching something? You safety nazis .. if not nanny'ing you guys would have nothing to say ..
@@xenuno Yes I did, but wind is not always predictable and if it changed direction momentarily that shop would have been filled with toxic smoke.
How is being safe being a "nazi", if anything, by spouting off on your rant you are an unsafe "nazi".... Go figure....
All the high temp melting metal: 🔥🥵
The brick: 👁️👄👁️👌
Brick isnt metal tbh
@@lukagtv1175 Yes i know
@@lukagtv1175 are you sure about that 😎
@@lukagtv1175 It’s an Oxide
The brick was literally melting.
5:18 anyone else felt ouch in their mind?
yes yes yes!!!!!
yes, I've been that close to burning myself before as well
God I hope you aren't breathing any of that toxic heavy metal smoke! Lol
God isn't an animal or human.
@@BrotherXFactorwhat does that have to do with anything
@@BrotherXFactorand also why you acting like youve seen him already false prophet boy
5:34 man in the background gets scared.
lol
lol
lol
Not
lol
This is cool. Plain and simple. Could you supply the plasma torch with argon? And actually weld tungsten. Ive done plenty of welding. Stick. Mig. Tig. But this is cool
i was thinking the same thing, but i am pretty sure that plasma cutters use compressed air, so there might be some logistical issues with trying to substitute with argon. i do imagine that it is possible, just a pain in the ass, or very jerry rigged.
@@josephgauthier5018 yes it is completly possible to hoo argon upto plasma cutters; industrial plasma cutters use argon to cut aluminum
@@zefrum3 oh, that's cool. maybe Thoisoi might revisit it later
Yeah, I think the O2 in the oxy torch oxidises a lot ans not the atmosphfere
@@cs.l5683 oh no. Mig 19. Im old. Lol
A TON of knowledge yet very few subscribers 🤔🤔. U deserve more
If you if you combine his subscribers from his second channel to his first channel, he's going to have around 2.1 million subscribers.
I dint what world you live in but 825k aint less, that said this dude needs atleast 10 million
Listening to you for 5 years and your accent doesn't change. That's one amazing consistency.
You can drive a person out of Russia but Russia from a person never ахаха
I love your accent!
When you say air, it sounds like ear, so it sounded like you were saying the metal oxidized in the ear!
It made me sit up and play it over to see what I misunderstood, then it made me smile!
My only concern was your lungs! The oxides the metals were producing reminded me of welding zinc, the oxide is so bad, you need a respirator for safety! I hope you were wearing one when you were doing the melting?
Thank you for the education! It helps keep my mind young, even tho my body isn't!
.........ACTUALLY I ALMOST DO NOT HAVE ANY OF ACCENTS EVEN THOUGH I'M RUSSIAN SPEAKER LIKE THIS ONE
.........HE DOES NEED MUCH MORE PRACTICE=..........OR MAYBE HE JUST DOES NOT KNOW THE LANGUAGE AND READING FROM A PAPER...
@@robotnikkkk001 dude chill
AC TIG is not the best method for what you want to do. As you saw, the electrode received a lot of heat.
Use DC electrode negative. This will impart a great deal of heat to the workpiece, rather than the electrode.
The lack of reasearch (well, 5min google) in this kind of video is beyond me.
And they didnt clean the torch nozzle, just look at it, its SO sad. But I guess they cant afford much (spending time and money) with only 700'000 subscribers, doing ~1 Video per month.
No ! inert gas !
Interesting video. I didn't realize that some of these metals were so refractory.
For a long time it was thought that niobium and tantalum were one element as they are normally are mixed together in there ores. This mixture was called Columbia, symbol Cb. After columbium was separated the lighter element was still called columbium but later was called niobium. I used to have an old dictionary that listed the chemical elements and it listed columbium.
niobium flame was really gorgeous 8:40
I love this! It's difficult to find such science experiments and explanations in such a visual and fun platform.
When using the arc welding, I think you had the polarity set up wrong. The electrode melts if the polarity is DCEP.
Nice! first a new Nurdrage Video than a Nilered Video and now you👍
One of my favorite metallurgical studies: Refractory metals. I always thought Molybdenum was 2nd to Tungsten.. Thanks for the hands on here. My second thought would be ultra high flame temperatures from exotic compounds such as dicyanoacetylene (4990 C burning temp in Oxygen). Put it with Ozone that temp rises to 5726 C! Almost 11,000 F!!! Piercing green flame is what I want to see..
Want to get a cheap source of Molybdenum? Get CO2 laser mirrors from China. They are used to reflect CO2 laser beams. They are also the cheapest one.
@@taiwanluthiers Good tip. The only cheap (free) source I know is the filament supports in a incandescent light bulb. Green flame test verified molybdenum wire.
This channel satisfies so many curiosities I have had for a long long time
My favorite element, thank you for discussing it
11:38 I love that International Space Station medallion
As an aspiring metallurgist, I can say that the plasma flame maybe vaporizing elemental tungsten a little, but the heat actually oxidizing tungsten (more true if you use oxidizing gas to create plasma, even carbon dioxide can be oxidizing in contact of many metals at high heat) which is undergoing sublimation at much lower 550 degrees Celsius. See that yellowish spot left after cutting tungsten with plasma torch? That is oxide of tungsten.
"So I had to improvise"
Molybdenum had another factor working against it: Phase Change. As it moved from Solid to Liquid and reacted with the oxygen, it was gasifying, which sucked the energy from the metal and caused it to drop in temperature below the melting point.
Molybdenum sublimates?!?! How cool is that!
oxidizes
awesome video. one of my recent favorites. it would be quite interesting to see you cover refractory ceramics. I hear halfnium nitride and halfnium diboride are quite impressive I would like to see how they yield to the plasma torch. I wonder how we will create more high temp materials in the future. perhaps transplutonics with high neutron counts will be stable. they cannot be made the way we create their lighter isotopes and I believe this is where we will find the island of stability. we must some how mimic the rapid neutron flux process in supernova to reach it. I hope we find these in supernova remnants to encourage us to develop such a technology. astronomers get on it, ask the people at darmstat what spectroscopic signal to look for.
9:28 He said 'rod' huh uh huh huh
Random question, When you melted Molybdenum, you got some crystals. What are the heat resistance properties of the crystals and can you make a 1x1in square for testing?
I really enjoy your lessons!
Thank you!
I was just wondering what eye protection you wore during this demonstration because many people don't realize how extremely bright that metal becomes when you melt it .
One should have eye protection with even the oxypropane touch which is sufficient for working with iron.
Thanks for your time. Love watching your videos even though I feel like I'm not smart enough to be into it lol.
A Brown’s gas torch is what you need to melt the metals.
Yeah right. It melts anything and it welds brick to metal and the temperature it produces depends on the material in flame and it washes your dishes etc. Get your flame temperatures right buddy.
Wouldn't some of the oxygen still end up reacting with the metal though? Could induction heating be used instead?
Thanks for the informative video I always wait for your newly uploaded video, the rhenium burning with green flame was awesome and now I realized why metal filaments in bulbs are encapsulated in air tight glass structures.
Sir can I translate your video for our students with your permission
Yeah no problem go ahead, i give my permission ✅
@@Outachoo thank a lot 😊
😂
@@Outachoo 😂😂
😂😂😂
My new favorite science channel!
try melting carbon! though i think it sublimates but im not sure but i never say anyone doing the plasma thing with a carbon rod > in an inert atmosphere
Yes, carbon doesn't melt at atmospheric pressures, that's why diamonds only form at colossal pressures.
At ordinary pressure carbon sublimes in absence it oxygen and burns in air.
I find that titanium actually can catch fire in a nitrogen atmosphere interesting. It would make good ablative external hull armor on a space faring ship due to it high melting point and it's combustion. Using a tungsten/titanium under/overlay as hullplating could eat heat from solar winds, slingshot maneuvers, and heat based energy weapons like lasers.
The SR-71 skin is titanium.
@@SSmith-fm9kg I knew this. But my over/underlay idea tale it higher as a heat dissipation system. If you went to the next level, make it convert the heat into power.
The US Navy uses Halfnuim for control rods in reactors.
For control rods, you want to absorb the thermal neutrons. The zirconium is for the fuel rods where you want those neutrons to escape.
Its also used in plasma cutter electrodes
@@gumelini1 all industrial plasma cutters ive ever used, the cutting tips, tubes and electrodes were all made of copper
@@kf8575 electrodes are copper with hafnium core.
The ad I got for this vid was amazing, great humor, nice length, and then I get back to ANOTHER great vid, 10/10, would recommend
08:30 yeah Austria =), Greetings from Austria ^^
To get a lot better contrast on those shots of melting/burning metal (i.e. get the image looking more like it does to you in real life), try picking up a cheap infrared filter!
I love your videos I wish I had enough money to support you, but the only thing I can do is leave my like and comment
As graphite holds up better than most rods I've seen, would using a graphite rod do the trick? Or would it simply introduce too much carbon into the system?
This was amazing!
WOW 👏😍👏😍👌👏 that was most chemical, metallurgical, scientific and amazing video I've ever seen.
Tungsten be like : so the game is on! Huh ?
@David Don lol
Plasma cutters are no joke, i used to have to use them when i worked in steel stamping plant, some of the coils were a half inch thick and they had to be cut with plasma only when feeding into the die or extracting scrap strip from the coil
I was hoping you’d do something with the boron
Nobody doesn't like molten boron
So good! I never thought about melting these metals!
I can't even begin to imagine how it must have felt when the titan began oxidizing in your ear.
Lol! But please don’t make fun of him, he might stop making such educational vids, and I need them because my chem teacher doesn’t teach properly
Yikes
It's amazing to watch the metals go through color changes when they cool, some more rapid than others.
Styropyro's lasers:
You are incredible, and you english is quite clear and accurate.
I enjoyed this video and get the majority of the informations with high understanding.
how has the rock not melted
Welder here.... You realllllly need to replace that tip.
you missed one metal that has about the same melting point as tungsten, That is osmium (Os) but I do not blame you for not including it as it's fumes are poisonous.
Tungsten's melting point is way higher than osmium's
@@vivimannequin yes but it is close at 3033 C
He welded with a plasma torch and a TIG electrode. What a badass.
It would be interesting to see how these metals react to induction heating, if you have access to one.
This is the 4th channel I have seen using a tugsten block in there video's in like 2 weeks
Cc translation is hilarious ...
6:45 The first time I watched this, I heard "chemical enemas" instead of "chemical eliments" at this point. A molten refractory enema would be a whole other world of horror.
I got a neurological chill just seeing that smoke....
This is a good lesson about these metals I was not aware of.
Can we get a minute of silence for the dead spider on the brick
The coins are so beautiful, wow!
Please add subtitles too🙂❤
Welding tungsten is one heck of a feat.
Your torch is improperly adjusted and needs to be cleaned for higher temps.
Mom let you out the closet again I see...
What we learnt here is no matter if a oxy torch can't melt certain metals just get a plasma torch of 20k and job done.
what is the mouth of heat gun made of and why doesn't it melt due to heat?
If you are not joking I’d say it’s self is made of tungsten
Im not joking, if he is :p
The flame/heat is produced outside of the nozzle. The actual nozzle is much cooler than the flame.
Good content. I think scientists have just recently made the most heat resistant material using hafnium.
@David Don Just trouble yourself with a little literature search and you'll see it for yourself. I'm not here to prove anything.
imma guess the answer is induction heating
If he fed the plasma cutter argon instead of pressurized air he might have actually welded tungsten. Basic knowledge.
Tungsten: showing it's muscles to resist heat.
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Carbon: Oh that's cute 🥰
"It's ok...I saw on the internet"
I am always shitting bricks when I see you handle the grinder with one hand bro. Get's me flash backs of when my grinder got stuck and jumped off.
Edit: Look at this bada**: 15:30
it's very hard to listen to you man - some words are missed - please make lyrics.
*subtitles
@@Christian.987 Yes subtitles, Thanks 😊
such a cool video, thanks!! very nice!! been subbed for a long time!! keep producing!!
0:56 "ziz" metals?
I would pay this man to teach every single class I have ever taken in my life.
15:30 Is this you? I always wondered, how you look like 👍
Yes, this is it. And he's from Russia. I watch his video on the main channel. By the way, there are more of them so I advise you to read
@@rasbatler921 First time I see himself- I enjoyed many of his other videos, but only could hear his cool voice
@@paulpaulsen7777 On the main channel, he is often in the frame himself and from time to time tastes something from his experiments. For example, he grew mutant radishes or made whiskey using ultrasound.
@@rasbatler921 Ah, ok 👌 Thank you. I didn’t see those yet. Until now I only found the videos about the different elements, which I always love. Thank you for the hint, I will have a look. I like this guy, the way he explains and his topics
@@paulpaulsen7777 I was glad to help) I am familiar only with Russian popular science channels
Thank you very much!! This was a very interesting show!
As a Industrial mechanik i can tell you that you have to put the little flame at the beginning of the burner around two to three milimeter away from the metal
Hafnium is actually very useful in the nuclear power industry. Not only does it absorb neutrons very well, but it has 5 isotopes in a row that will do so and remain stable (Meaning one atom can absorb 5 neutrons, whereas the average uranium atom releases on average about 2.5 when it splits). For this reason, it is used in control rods to control temperature in steady-state operation, and to shut down the reactor entirely. If a nuclear reactor is increasing in power at an uncontrollable rate, the control rods can be effectively spring-launched from their current position (Even fully withdrawn) to the fully inserted position, and shut down the reactor in under a second.
most satisfying video to see melting tungsten
I really wanna get a beer with this guy.... He could teach me so much!
Definitely love the over dub on this and the info is amazing
Did some amazing stuff there. Beats the usual vids with we do little bits. Keep up the serious fum.👏👏👌👍
Many of us do, in fact, encounter Zirconium in a daily lives. Not in a pure form though. Zirconium dioxide is used in dentistry for a production of extremely wear resistant implants.
It is wonderfully entertaining and educational to watch, and then I get a hilarious second viewing where I read the hillariously wrong transcript.