about ultra-hard ceramics could someone tell me a little about them.
I know that ceramic fibers are used in sheets to protect the Space Staion from micrometeorites. There is talk of putting these sheets into bullet-proof vests and armor plating.
In industrial work, steel and harder metals are often machined by cutting devices with a ceramic blade, because ceramics are very hard and take a long time to wear out.
Here's a link with some info on how they're made.
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