Knife Blades: the blade of the ceramic knife will stay sharp for much longer than that of a steel knife, although it is more brittle and prone to breakage. The piezoelectric influence is generally more robust in materials that also show pyroelectricity, and all pyroelectric materials can also be piezoelectric. https://silicamagneticbeads71481.illawiki.com/2101555/termokoppel_options