While many would view Kyocera as an electronic company, we were founded as Kyoto Ceramic Company. Fine Ceramics (Advanced Ceramics) have low coefficients of thermal expansion --less than half that of stainless steel, meaning they hold their shape better and are reliable for creating high-precision measuring equipment. Precision is exactly what you need when creating high-quality electronic items.
Check out the link before for more info.
https://global.kyocera.com/fcworld/charact/heat/thermaexpan.html