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- เผยแพร่เมื่อ 16 มี.ค. 2016
- View full lesson: ed.ted.com/lessons/what-is-met...
Steel and plastic are essential to much of our infrastructure and technology. Steel is strong and hard, but difficult to shape intricately. Plastic can take on just about any form, but it’s weak and soft. Wouldn’t it be nice if there were one material as strong as the strongest steel and as shapeable as plastic? Ashwini Bharathula discusses the future of metallic glass.
Lesson by Ashwini Bharathula, animation by Tinmouse Animation Studio.
"This will work once we figure out how to make it work." The optimism of the inventor. (Not knocking it; just find it amusing.)
Nice one
the founding of human advacement. "i bet this would be awesome...lets make it!"
Feat. Graphene
Agree. “The only drawbacks of this strong material is that it’s expensive and not very strong”
@@gary3074 This already exists and is used in distribution transformers.
This video is relatively misleading. See, some of the strongest materials are plastics. Kevlar is plastic or polymer, yet it can stop a bullet. Same goes for UHMWPE or ultra high molecular weight polyetylene, which is one of the strongest and lightest fibers. Plastics however lack compressive strength, which is required for making the buildings and other structural things.
Metals on the other hand usually have both tensile strength (regular strength) and compressive strength, but are heavy. Metals also have the ability of easily being machinable and ability to be welded. Plastics can also be welded, but it's usually much harder. This means that metals can be constructed somewhat modulary, while plastics are usually stuck in the shape they were made at originally.
Metallic glass is usually very elastic, but they behave more like ceramics than like metals. While metals can bend and deform when under stress, metallic glass will usually deform slightly, and then crack. Metallic glass is also impossible to weld with current technology. And sometimes, when you heat them, they will loose their glass like properties and become like regular metals or alloys. This means that metallic glasses are similar to plastics in that they can't be welded, and similar to ceramics in that they are more likely to crack than to deform.
And now to answer the big question "why aren't all materials replaced with metallic glass?" the answer is simple. Other materials do the better job.
See sometimes you need electrical resistance of plastics, because you don't want electricity to leak everywhere. Also, plastics are super light, while metallic glasses aren't. Plastics and simple alloys are easy to manufacture, and metallic glasses aren't. By now, there is no need to transition to metallic glasses. I hope this clears up some of the misconceptions.
What about carbon nanotubes?
And even though this comment has been made, the top comment is a pun. Yay, youtube.
This video is quite terrible, being a Materials Engineering student. Thanks for pointing some of its flaws.
Iridium shut up smarty pants
Yes but the video juat says that gonna be more way easier to test it out with something more easier to bend and harder to break while metal take a huge time to bend and its heavy while metallic glass is light and plastic ia light but a little bit weak for fall damage and smash damage.
I remember reading about Liquidmetal years ago, how it was stronger than titanium and as easy to mold as plastic, and how it was going to revolutionize everything. It barely showed up in a few golf clubs and tennis rackets.
It’s called you have to heat it it’s super high temperatures and then cool it down so fast it’s merely impossible.
@@freedomdude5420 probably possible but require enormous amounts of energy
@@revon7202 The funny thing is, I’ve seen online on TH-cam metallic glass, our government lied to our faces, so remember Roswell and how they said that they found sheets of metal like tinfoil and it was just fold up perfectly well come to find out what the material was really made out of was metallic glass and mind you we didn’t invent this thing yet which means our government completely lied to us in our faces there is aliens out there,they’re just playing games. Question is why? when I was showed this material and a tinfoil form it folded just like the man said on TV even though they said that it was just regular tinfoil, now I know it’s a bunch of BS.
@@freedomdude5420 what government,are you american? because theres no 1 government for the world
@@revon7202 oh sorry where are you from.
Scientists are forced to make metallic glasses It's because that damn Black Panther is hoarding all the Vibranium
it his right to keep it
+AJ Mira-ato NEEERRRRRRD! xD
And the government is holding all the adamantium
as if vibranium wasn't already challenging to acquire. T'challa gives 0 fucks
+patience 2277 Yes but the average middle cladd jews isnt likr that I am muslim but I have several jewish friends. You can't judge someone based on there religion.Otherwise that would be ironic.
i'm studying ceramics, so "steel is strong and hard" is something i almost never hear. anything that has any kind of plasticity below 200°C i always considered "soft" funny how you forget about the scales of things like that in real life, when you've been inside the specialised bubble of your disciplin for too long.
Yeah, your field may call it soft, but professors would probably rescind that if I asked them to bend steel because it is "soft"
@@paulmahoney7619 or they'd show you a spring, maybe. In common applications steel is very much a bend-able material but you kind of have to know where to look. I fix bicycles, the kind where nearly every part is steel, as a hobby. Understanding the flexibility of steel and its limits in marvelous in this hobby. If I want a wheel to fit in to the frame and need a couple millimeters of space, well, just push a little and the space appears. Same thing with a lot of other parts. Steel spokes are fascinating, you can move em around with your fingers and you can also get an estimate of whether they're tensioned the way they should be by plucking them like a guitar string and listening to the sound.
i steel don't get it...
+ChaoSpiritZ rotmg Its more for a plasctical use
+SrAndre98 are you serious?
SrAndre98 didn't you get my pun?
ChaoSpiritZ rotmg Practical - plastical, so yes, I got it ;)
IPpainting facepalm
so nokia was made from metallic glass ...
no, it was made from something stronger
+pavlobro17 far stronger
+Zine Mégathérium Nokia as a company? No
+boy638 Nokia as a phone.
Plastic casing…
We just need to get the plastic and steel to become friends or fall in love and then fuse
Close enough...
Also hate me for this...
They are still Stronger Than You...
I had to.
Makuta Texxidos Su fan
No. Fusion is just a cheap tactic to make weak resources stronger!
Voodoo Well we already manipulate energy and everything else so why not?
Kirston Markowski you melt both and mix them in a heat resistant blender
There you go, metallic glass!
Omg the scientist who keeps on fainting whenever he sees metallic glass is my favorite
Building a space shuttle from BMGs would be astronomical. I see what you did there...
A good name for a band?
No.
yes
+bongdong Metallilass
bongdong Boku no Pico
To close to metallica
2:52 _degrees_ Kelvin
It's been almost 50 years since the 13th CGPM, do try and keep up, Ash.
Uhh... Pokemon and CGP Grey are totally different places.
What
Also: damn this is old
@@CadetGriffinGandalf’s the Pokegray
i just keep hearing "Transparent Aluminium" even though thats not quite the same thing.
+Rinoa Super-Genius That stuff is great for whale pens.
+beayn Yeah. It's just too bad that we won't get that tech for another negative twenty years.
+OnlyFactsPlease I guess we'll just have to settle for polymers.
beayn i love ur
Rinoa Super-Genius i luv your channel
2:17 - 2:25 "It's a liquid." "No, it's a solid, it's a solid!" "It's a lolsquid..."
How does solid and liquid make lolsquid...
+*_Wambly TK_* destiny
Spongebob reference lol
It's a lolkid.
It's a lolsquid AND a lolkid.
whoever you are, you are my favorite host in this channel, your voice is so clear and nice to hear, so pleasing in the ears
Ahhhh...I see. I've only heard of this research area briefly when I was an undergrad. Now I kind of know the significance of the complex chemical formulas on metals (in the majority of materials science papers) I've been seeing in the library.
so it has the property of metal and plastic, and we're calling it glass? I suppose it is partially crystalline, but....
It's called a glass because, by definition, glass is defined as a solid that isn't crystallized when it becomes a solid. Yes, that does mean your window glass is an entirely noncrystalline material.
Mentioning plastic was just a hook to get you interested. Despite what he said, steel is already as shapeable as plastic. You just have to heat it up, which is actually the same as what they do with plastic. You just need less heat for the plastic.
So, yeah, the plastic was just a non-sequitur. Metal is all-around better than plastic in terms of mechanical properties, but plastic is a lot cheaper to get and a whole lot cheaper to work with. That's why you see it everywhere, and seeing it everywhere makes mentioning a better plastic alternative into a great way to hold your attention. Therefore, he mentioned it once at the beginning and then didn't mention it again at all.
Kazmir Runik ...lol alright, thanks XD
Kazmir Runik b
So basically. Ted-Ed is clickbait crap too. Good to know.
James Rowe No....
I like how some scientists fall to the ground from love when looking at metallic glass
Spectacular video! It's one of the most amazing videos from the channel!!
Love these vids from the animations, the calm informative voice guy, the information i probably never considered or asked for but totally appreciate 😀 todo eso
As a metallurgical engineering student, this is very cool. Abraços do Brasil.
G. Kniess As a Materials Engineering student, this is just a big facepalm. So many wrong concepts and misleading ideas...
@@Pike27 As a metallurgy and materials engineering student, i agree with both of you....
As someone that know nothing about this subject I disagree with all of you. The internet never lies 😂
Poor metal and plastic; no one like them anymore :(
+Dayz 3O6 yahh if toys are made of metallic glass, our toys will last longer.
+Katriya Phavanee Now my DD boobs feel sad
+Dayz 3O6 #MakePlasticGreatAgain
+Dayz 3O6 if you need something to go into space or figheter jets, metalic glass would not do
Don’t worry the video is inaccurate both plastic and “metals” are better
Any kind of material has its own weaknesses, there are restrictions in their applications due to their properties but without doubts the metallic glass is going to fill the voids of those weaknesses and will be a very useful material in the industries around the world.
Certainly, every kind of material has its weakenesses. It's the strengths we have to focus on in order to continue with the development of this wondrous new material that will shape the industries in the years to come.
I think the only weakness it has would be the cost of production,
the fields of application are huge.
Star Trek's transparent aluminum eh?
my thought as well. "Hello Computer"
Ted Ed gives me answers to questions I didn't even know I had
Metallic Glass seems like a jerk.
?
Thanks for the great work it helped me a lot.
video came out 1 minute ago and the video is 4:33 minutes long.
How are people saying good video even though they didn't watch the whole video?
slow internet?
+Westgreenhornets Illuminati confirmed
Auzan Widhatama you're suspecting me of slow internet because people commented good video on a video that is 4 minutes long and was just released 1 minute ago? I beg to differ
+Westgreenhornets maybe they sped it up ? I do it all the time .
They're lying.
Estaba buscando una explicacion simple de los "metalic glasses" , gracias por tu video, excelente!
Is this whats on the back of Sony Xperia Z5?
No?!?
+ThePlushNinja that is probably just stainless steel or high carbon stainless steel.
Actually it's made of frosted glass for some reason. The most fragile shit in the entire existence. That's what your cover is made of.
Poly.amides
z5 is frosted glass and its brittle as a biscuit
makes me more excited to get into metallurgy!
What's the mass per cm^3 of these alloys and would it be viable for use in aircraft?
I'm both steel and plastic and i find this offensive.
is...is this effort?
+haziq590 A for effort
+ho jo no
A frot!
I would like your comment but it's on 69 likes so I'll keep it where it is, perfect.
Can they be melt by jet fuel
***** idk, ask your friendly neighbourhood muslim
Artist formerly known as Al-Mansura-Abbassid or Bob jet fuel can’t melt steel beams
So that means jet fuel can’t melt metallic glass
Jet fuel melts pretty much everything but ceramics
You mean coming in contact with you or from the temperature of the fire from jet fuel?
This video is really neat, I like you ted ed
GREAT video! Thank you.
I saw nickel in the compound when you showed us what makes it up, now with my understanding of magnetic metals as I know that steel kept its magnetic properties from iron and as nickel is a magnetic material does the metallic glass also keep the magnetic properties or does it lose them?
i saw a nickel on the ground and picked it up
@@RRRusan three years and I get this,
I love it.
That scientist who would faint from love for the metallic glass is so cute!!
The question is, would it be good for a prothstetic ( definitely fecked that up) base? Combined with Teflon to smooth out the joints and other stuff to help with movement, would this be at all a good substitute for steel?
Ted really making videos for questions we have in the shower
Reminds me of Transparent Aluminum.
Steel is adorable!!! *hugs!* >v
3:48
that reminds me of super cooled pure water. While it's pure theres nothing for the water to nuclear around hut whenever you pour it on let's say a table, the particles or microbes present will become the impurities in the water and cause it to become ice or in this case crystallize .
Pretty cool how different things work on the same principles
I'm wondering if it may be possible to use in ballistics possibly as armor?
A ted-ed video teaches me more in like a few minutes that school does in years
I was hoping this would be about something like transparent aluminum, like on Star Trek.
+Shawn Ravenfire Aluminium oxynitride
+My ex-wife y has no one made bricks out of this, it is amazing
+Lols r Fake Because it only lasts for a fraction of a second
Ditto. Same exact thought i had.
Awesome explanation..
I love this channel! Here I can practice my listening (I'm from Brasil). Clear sound 👍👍
thank you so much team ted ed.
Whose voice is this?It IS JUST AWESOME.
Kind of late but his name is Addison Anderson
@@henrickdelcastillo6671 No
johnny sins
I wonder if this might be useful in additive Manufacturing due to the fact that you have small lamina in the deposition process you can control heat better
I love the animation.
Basically it is an amorphous solid metal.
Trenzinho da Alegria
your comment matches your profile picture
metallic glass and plasteel, please
Wouldn't heating it up to a point where its malleable affect the grain structure? How does it regain the properties and strength again?
Grain boundaries aren't weak spots, usually the smaller the cristal size, the more grain boundaries you have, and stronger is the metal. And the metallic glass you are talking about is basically just a huge chunk of amorphous grain boundaries. They are however more susceptible to corrosion, just like the metallic glass, since the atoms there have less neighbors and are in a more unstable chemical arrangement
Please, let them be more ecologicaly sustainable than plastic
OMG I really love his voice
yourchannel is awesome 👍🙏
great lesson
Science steel hasn’t found what it’s looking for.
i need a kitchen knife made out of this stuff! ASAP!
How to differentiate metallic glass and chrome plated metal?
I love this channel
How is metallic glass different from alloy
Good question.
The atoms in an alloy are arranged in a specific pattern, while the atoms in metallic glass are arranged in a random pattern.
Well if you cool heated alloy fast enough its molecules will also be in random pattern
clsman89 That may or may not be true. But today, none of the alloys treated this way so therefore they are different from metallic glass. Just because you make an "if" statement doesn't mean it's a reasonable argument.
Lucas Layton Many alloys are treated that way. Google quenching, hardening or tempering. Those are usual processes for obtaining desired alloy properties.
I would like to request Ted Ed to increase the volume of the narrations in the future videos.
Hey what about the hemp? I read somewhere that a guy made a car from hemp and it was strong as steel yet easy to shape like plastic.
Steel + plastic = metallic glass. WHAT???
Lol
3:33 I need someone to love me as much as that scientist love BMGs
It is fascinating how this material is much stronger and lighter than conventional metals, can be molded like plastic, and not corrode or rust. Because of its properties, metallic glasses will be good rivals to plastics, metals and ceramics in the next years.
I hadn't thought about the fact that metallic glass could effectively replace ceramics in the future, buy you are totally right.
If we find a way to make it cheaper it could totally replace plastic and ceramics, I hope we get to that point soon
It is true, metallic glass has amazing properties, which can be applied in different fields.
is this the same substance you find as metallic looking rings inside of hard drives? they look like metal, but dont seem like metal somehow.
People in the comment section are steeling each others joke
I bought a Wooden whistle, But it Wooden whistle,
I bought a Steel whistle, But it Steel Wooden whistle,
I bought a Led whistle, But it Steel Wooden Led me whistle!
(Not original)
i need it right now
NOW
isnt the simple repeating structure of things such as diamonds and steel what lend it it's strength?
can you do one about why do sun burns burn so badly bc I have a horrible one of my back right now and it is so freking hot
are you saying that if fire bakes out it will go soft and collapse?
Is there any specific company that's specializing in this specific region?
This would be a perfect application for solid state batteries and piezoelectric technologies. You could arrange carbon structures the way you want them. Anodes, Cathodes?
Is the manufacturing process of metallic glass has something to do with sintering and ceramic technologies?
This seems to be very similar to amorphous metal, made by taking molten iron (plus various other trace metals) and cooling it so rapidly that it doesn’t form the usual crystal lattices. Thus, not a true solid. Currently used in low load loss distribution transformers and antitheft tags.
awesome!
please make a video about thermoelectric materials
I love how we humans develop things to make life easier even while living in a system that pursues only what is profitable for the chosen few. It makes one thing that an end to this irrational system is still possible.
This is a cool invention
how much would it cost to manufacture them?
Never heard of this until today
How abaut you melt plastic and steel togheter
why we discuss about mechanical properties only/ what other properties like chemical prop....
Hasn't this basic principle already been used in metallurgy for a long time? This seems very similar to hardening and annealing. How does this compare to steal? My understanding is that steel is made by heating iron till it's no longer in a lattice structure, then forcing carbon in so that when it cools it can't go back to being a lattice.
What about Aluminum oxynitride?
Or ALON?
3:45 Impurities cause crystalization? I though the whole point of alloying elements that don't fit together was to achieve a sort of "maximum impurity".
Very interesting.
How recyclable is it? Just re-melt?
I wonder if these metalic glasses count as composite materials?
This thing is so cool
amazing
this is literally the greatest invention of the 150th century
Woooow science overload yes!😄
Can this be used for holding water for a whale tank with only the thickness of 1” thick?