Piezoelectric Ceramics with Zero Temperature Coefficients of Radial Mode Resonance Frequencies
- 1 August 1980
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 19 (8), L487
- https://doi.org/10.1143/jjap.19.l487
Abstract
Piezoelectric ceramics with zero temperature coefficients of radial mode resonance frequencies were developed. The chemical formula of these ceramics is (Pb0.91(La1-αNdα)0.08)(Ti0.92Mn0.02In0.06)O3. In the ceramic system, the temperature coefficient varies from -25×10-6/°C to +40×10-6/°C as the molar ratio of Nd changes from 0 to 1. When α=0.5, the temperature coefficient is less than 1×10-6/°C over the temperature range -10 to +50°C. The electromechanical coupling factor of radial mode is 0.1; mechanical quality factor is 1400; and dielectric constant ε 33 T is 225.Keywords
This publication has 4 references indexed in Scilit:
- Temperature-compensated PbTiO3 ceramics for surface acoustic wave applicationsApplied Physics Letters, 1979
- Electromechanical Properties of PbTiO3 Ceramics Containing La and MnThe Journal of the Acoustical Society of America, 1971
- IRE Standards on Piezoelectric Crystals: Measurements of Piezoelectric Ceramics, 1961Proceedings of the IRE, 1961
- IRE Standards on Piezoelectric Crystals: Determination of the Elastic, Piezoelectric, and Dielectric Constants-The Electromechanical Coupling Factor, 1958Proceedings of the IRE, 1958