BS ISO 21819-1. Fine ceramics (advanced ceramics, advanced technical ceramics). Characteristic of piezoelectric properties under high-load conditions. Part 1. Resonant-antiresonant method under high temperature conditions— 14 стр.
Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for piezoelectric constant d$d3$d3 of piezoelectric ceramics by direct quasi-static method— 12 стр.