Lead Zirconate Titanate Ceramics.
DEPARTMENT OF THE NAVY WASHINGTON DC
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Lead zirconate titanate ceramics comprise from about 92 to 99.0 weight percent of lead zirconate and lead titanate in ratio from 0.505 to 0.540.495 to 0.46 respectively from about 0.5 to about 2 weight percent of one or more fluorides or chlorides of an alkali metal or alkaline earth except francium or radium, and 0.5 to 6 weight percent of one or more oxides of magnesium, barium, chromium, scandium, aluminum, lanthanium, praesodymium, neodymium or samarium. The cermic after pressing is annealed at a temperature from about 1050 to 1350 C. Ceramic elements made from the above ceramics are useful as sonar and microphone transducers.
- Ceramics, Refractories and Glass