Kevin & Kim wrote:

FYI

Here are some technical charts concerning ceramic materials and their
properties.

http://global.kyocera.com/prdct/fc/product/pdf/material_e.pdf
http://www.coorstek.com/resources/8510-1042MaterialProperties.pdf
Kyocera lists SiliconNitride.  CoorsTek has Nitride Bonded SiliconCarbide.
Their respective websites are
http://global.kyocera.com/
http://www.coorstek.com/

I'm sure there are more manufactures, but that's all I have right now.
Kevin

 
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