... ovens, computers, calculators, telephones, electronic and toys . One.Piezo Ceramic Element Applications1. For sound making:Clocks,Calculators,Telephones,Washing machines ... the center of the diaphragm may cause cracking in the ceramic elements .When the diaphragm is supported by the edge ... 1-2 second and the same temperature for the ceramic Silver electrode for 0.5 second or less .Six. SWT piezo ...