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Piezoelectric ceramic, method of manufacturing same, and piezoelectric ceramic speaker using same
The invention provides piezoelectric ceramic, a method of manufacturing the same, and a piezoelectric ceramic speaker using the same. The piezoelectric ceramic of high kr and high specific dielectric constant can be sintered at low temperature and exhibit minimal characteristics variations.A piezoelectric ceramic has a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains present sporadically in the primary phase.
Piezoelectric ceramic, method of manufacturing same, and piezoelectric ceramic speaker using same
The invention provides piezoelectric ceramic, a method of manufacturing the same, and a piezoelectric ceramic speaker using the same. The piezoelectric ceramic of high kr and high specific dielectric constant can be sintered at low temperature and exhibit minimal characteristics variations.A piezoelectric ceramic has a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains present sporadically in the primary phase.
Piezoelectric ceramic, method of manufacturing same, and piezoelectric ceramic speaker using same
SUMIAKI KISHIMOTO (author) / GOUKI WATANABE (author) / KEIICHI HATANO (author) / YUTAKA DOSHIDA (author) / TAKAYUKI GOTOU (author)
2015-05-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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