Ceramics: This Material Won't Melt Away
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- เผยแพร่เมื่อ 25 พ.ค. 2015
- We all have items in our homes that are made of ceramics: dinner plates, floor tiles -- and toilets. And in the technical world, ceramics are used in electrical devices, fiber-optic cables, and even the space shuttle tiles.
A ceramic is strong and hard, but its best quality -- the most important to scientists -- is its high melting temperature, which allows engineers to use it in places where even metals would melt. At the laboratory at NAVSEA Carderock in Bethesda, Md., engineers are creating ceramics that will improve engine performance.
"Everything we make here is very new," says materials engineer Jim Zaykoski, PhD. "It's never been done before, and that's the exciting part of what we do."
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CONCEPTS EXPLORED:
Ceramics
Mohs Scale
Sintering
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MILITARY BRANCH:
Navy
Dr. Zaykowski is the man.
How hot would you have to get it to melt of sublimate ceramic?
amazing
Most ceramics are oxides. Burning is usually reacting with oxygen, so ceramics don't burn because done-burned. But they can melt. Hafnium diboride has about the highest melting point discovered so far, and even higher after it is oxidized.
LabTVonline What metal alloy that doesn't burn nor melt at 2 mil to 3 million degrees? And at what high temperature how does it treated? So it will not burn at going back down to Earth's atmosphere. And what mixture element to strengthen so it will not burn/melt at 2 mil to 3 mil degrees?
Stainless steel or titanium, or what metal element after treated so it will not melt nor burn? And what amount of high temperature to be treated? Let me know please...
aren't our bath tubs the biggest piece of Ceramic anyone has?
Most of our old bathtubs are actually a porcelain enameled steel, such as my old claw foot bathtub for instance. Sinks can commonly be either porcelain enameled steel or fully porcelain like a toilet, my bathroom sink is fully porcelain.
The physical size of a bath tub would likely make it cost prohibitive to make it out of nothing but porcelain and it would be prone to shattering easily. The other issue with a fully ceramic bath tub would be that the weight of it would be insane, moving one into your house would be quite the project not too mention the floor remodel to handle the weight of it and a full tub of water inside it.
University of Calcutta mein ceramic engineering ka placement kaisa hai
I wish that I had an indoor toilet.
damn you stuck in the mid 1850s huh
I wish that I was an indoor toilet.
Ok thank you, I thought my bowl would melt because of my noodles
Archer Pog
how are you guys?
hi
Don't forget dental uses. That's why I'm hear. I wanted to know more about sintering. Its good to know it's not the same as melting.
Why is there so many neeks in this comment section
Hey Vsauce! Michael here
im here because of science like if u r coming from a kid in his lesson
wait ...
so a campfire is hotter then an oven?
interesting.
Is it? Unless your oven is electric, it still just heated by flames. Yes, gases do also burn at different temperatures, but a campfire is just a whole bunch of flame, kilins can make them hotter. Ovens are just the gas at the bottom being turned up, like the stove top.
no
Doesn't directors ever watch the videos they directed? The music is unbearable. I can't understand why would somebody put music in the background while someone is talking unless it's a very intense dramatic moment. "Everyone was heating Ceramic up. But Ceramic was strong. She wouldn't melt away even if a thousand degrees heated her up!".
I dare you to watch a colinfurze video.
who is here from tech then BAHAHAHA
Sir namaste i want to ceramics insulators borrown galze materials 100 kg recuerment
Marathi nahi ka
"video of ceramic melting" gives me this video, and other results like this, suggesting that ceramic is impossible to melt.
Google is trash. Are there literally no videos of ceramic melting? I just wanna see it. I just wanna see ceramic get hot enough to melt.Why can't Google find it?
No, not impossible to melt, just a much higher melting point than most metals used for constructing our machines and whatnot. The highest temp ceramic is listed as having a melting point of 7,226 F where as the highest melting point of any metal is 6,192 F for Tungsten. Most common metals melt anywhere from 400 F to 2400 F.
The only material with a higher melting point than high temp ceramics that I can think of is diamond which has a melting point of 7,280 F. As diamond is much more expensive to create than ceramics it is not feasible for most applications, though Chemical Vapor Deposition ( synthetic diamond ) technology has come a long way in the last few years.
In fact I am here trying to find better materials for my carbon arc furnace as the carbon arc burns at a temperature of over 5,400 F which is far too high for any metal that "I" have access to. Ceramics on the other hand are within my ability to afford, though the ceramics in my price range sadly do not have the impressive 7,226 F capabilities. Though on an interesting note, the clay used to create the heat shield tiles for the space shuttles is from a town about 10 miles from me.
@@edwardortman2593 rah thats an explanation
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This guys creepy af
Who is here after iPhone 12 launch
hi