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PIEZOELECTRIC CERAMIC SPEAKER USING VIBRATION SHEET FORMED WITH PIEZOELECTRIC CERAMIC
A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having 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, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x.(Ni1/3Nb2/3)y.(Zn1/3Nb2/3)z}O3 (where 0<1, 0
PIEZOELECTRIC CERAMIC SPEAKER USING VIBRATION SHEET FORMED WITH PIEZOELECTRIC CERAMIC
A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having 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, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x.(Ni1/3Nb2/3)y.(Zn1/3Nb2/3)z}O3 (where 0<1, 0
PIEZOELECTRIC CERAMIC SPEAKER USING VIBRATION SHEET FORMED WITH PIEZOELECTRIC CERAMIC
WATANABE GOUKI (Autor:in) / GOTO TAKAYUKI (Autor:in) / HATANO KEIICHI (Autor:in) / KISHIMOTO SUMIAKI (Autor:in) / DOSHIDA YUTAKA (Autor:in)
21.12.2017
Patent
Elektronische Ressource
Englisch
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