Questions tagged [ceramics]
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Can Rotary Friction Welding be used to join metals and ceramics?
Is Rotary Friction Welding a good method to join cylinders of a metal (such as Ti alloy) and a ceramic (such as SiC).
I know that Diffusion bonding can be used in such cases. However, it has its own ...
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What material should I use to store molten metal?
I'm performing an experiment based on slag corrosion behavior of the refractory material. I need to store molten metal at $\approx$ 1600-1700 K for that.
Specifically, I'm working on slag corrosion ...
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What is the highest-temp castable refractory cement available?
I very much ruined 3 $10 diamond hole saws making this ceramic insulator out of a firebrick and Ryobi drill press. Drilling out the large core took 1-2 hours and a lot of arm strength.
Therefore, I ...
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What's the most cost-effective cutter bit material that can be used to machine aluminum oxide?
Al2O3 is a hard, white material used for making firebricks and numerous molded ceramic parts.
Say I had a firebrick, took a core out of it using a thick-walled diamond hole saw and a drill press.
...
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Exact definition of ceramics
Exactly what are "ceramics"? I found a lot of similar "definitions" of that term online, e.g. on Wikipedia and here.
These (and other) sources essentially state that ceramics are non-metallic, non-...
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Why Green Porcelain was Used for Chalkboards
This site: https://www.businessinsider.com/why-most-blackboards-are-actually-green-and-not-black-2017-11#:~:text=The%20color%20change%20came%20in,likely%20to%20survive%20the%20journey states that ...
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Connect heated copper tube in PVC tube
I have a copper tube that I'm heating (quite a lot) with a torch, I have to connect a PVC pipe in the entrance of the copper and one in the exit (so water can flow through the copper pipe). The only ...
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Power from piezo material
Suppose there is a given piezoelectric material and under a given force it produces voltage $V$. If an external electric circuit is attached with load $R$, the current will be $I= V/R$. Also power ...
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why did my ceramic matrix composite turn out brittle as snow?
I have attempted making a ceramic matrix composite (cmc) by wetting glass fiber cloth with waterglass and baking it at 200°C. The resulting material disintegrated on touch. Unwetted fibers did not ...
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Kiln design, heating element holders
I intend to build a kiln in my free time over the next few months and am trying to avoid my past mistakes (heated too quickly, the kiln started cracking, the kanthal element melted and it was just ...
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Ceramic pressure measurement - piezoelectrical or capacitive?
Context: I'm writing about an old industrial training facility used for a petrochemical process.
In this training facility, there is a 3-phase separator. On that separator is a pressure measurement. ...
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Is it possible to create a hard slick non-stick non-degradable substance? [closed]
I once read on a web page I can no longer find that corundum is a covalent network. I'm guessing that's because despite the fact that the electronegativity difference between aluminum and oxygen is ...
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Is it safe to stand on a toilet bowl?
As most westerners know well, ceramic toilets are designed to be sat on, even by those who are quite overweight. However, since it's customary in Asian countries to squat when using the toilet, some ...
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In this “hybrid” ceramic 608 bearing is there likely a plastic piece holding the bearings?
I have some “hybrid” bearings that I purchased a long time ago on Amazon. They have silicon carbide balls and steel inner and outer races, as you can see in the photos. What I am wondering is what are ...
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Methods for cutting glass
I am trying to find the easiest way to cut a thick glass pattern (glass thickness of 1-3 mm thick) without breaking. I am considering laser cutting but I don't know if I can cut glass of this ...
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Identification of cylindrical part with unknown purpose
I came across some of these parts and have no idea what they are. It could be related to bearings, but most likely not. I also have other, similar looking parts but of all different dimensions (with ...
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Is it possible to build a radar that is shielded behind one meter of ceramic material and still detect people 500 meters away?
I saw that there are radars which can detect people behind walls, so I wonder what the limitations of radars are when it comes to detecting people while being protected behind thick ceramic shield.
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Can I use ceramic fiber blanket inside a microwave?
I want to activate some carbon inside a microwave. Temperatures will reach 900 C, hence ceramic is the best choice. However, it is quite difficult to find air tight ceramic containers. I intend to use ...
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can ceramic be used as a building material?
From what I read, concrete has much lower compressive strength than ceramics. So why aren't we using ceramics to build? Is it because ceramic failure is difficult to predict? Because it's hard to ...
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Use of ceramics in internal combustion engines - why and why not? [closed]
I have a question concerning if there is any automobile company that has mass
produced ceramic engines?
If not then why is that?
I have tried searching but couldn't come up with any answers.
