A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATOR
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition, a piezoelectric element and a piezoelectric vibrator which have a large piezoelectric d constant and a small mechanical quality factor Qm.SOLUTION: The piezoelectric ceramic composition contains a composite perovskite type compound represented by the general formula Pb(YbW)(ZnW)(TiZr)O, where x, y, z and a satisfy 0.005≤x≤0.08, 0.03≤y≤0.15, 0.45≤z≤0.55 and 0.97≤a≤1.03.SELECTED DRAWING: Figure 1
【課題】 圧電ｄ定数が大きく、かつ機械的品質係数Ｑｍが低い圧電磁器組成物、圧電素子及び圧電振動装置を提供する。【解決手段】 本発明の圧電磁器組成物は、一般式が、Ｐｂａ（Ｙｂ２／３Ｗ１／３）ｘ（Ｚｎ１／２Ｗ１／２）ｙ（ＴｉｚＺｒ１−ｚ）１−ｘ−ｙＯ３で表され、ｘ，ｙ，ｚ，ａが、０．００５≦ｘ≦０．０８０．０３≦ｙ≦０．１５０．４５≦ｚ≦０．５５０．９７≦ａ≦１．０３を満足する複合ペロブスカイト型化合物を含んでいる。【選択図】 図１
PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATOR
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition, a piezoelectric element and a piezoelectric vibrator which have a large piezoelectric d constant and a small mechanical quality factor Qm.SOLUTION: The piezoelectric ceramic composition contains a composite perovskite type compound represented by the general formula Pb(YbW)(ZnW)(TiZr)O, where x, y, z and a satisfy 0.005≤x≤0.08, 0.03≤y≤0.15, 0.45≤z≤0.55 and 0.97≤a≤1.03.SELECTED DRAWING: Figure 1
【課題】 圧電ｄ定数が大きく、かつ機械的品質係数Ｑｍが低い圧電磁器組成物、圧電素子及び圧電振動装置を提供する。【解決手段】 本発明の圧電磁器組成物は、一般式が、Ｐｂａ（Ｙｂ２／３Ｗ１／３）ｘ（Ｚｎ１／２Ｗ１／２）ｙ（ＴｉｚＺｒ１−ｚ）１−ｘ−ｙＯ３で表され、ｘ，ｙ，ｚ，ａが、０．００５≦ｘ≦０．０８０．０３≦ｙ≦０．１５０．４５≦ｚ≦０．５５０．９７≦ａ≦１．０３を満足する複合ペロブスカイト型化合物を含んでいる。【選択図】 図１
PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATOR
圧電磁器組成物、圧電素子および圧電振動装置
TERUO TATSUAKI (author)
2016-08-04
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
H01L
Halbleiterbauelemente
,
SEMICONDUCTOR DEVICES
/
H03H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
,
Scheinwiderstandsnetzwerke, z.B. Resonanzkreise
/
H04R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS
,
Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler
PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ULTRASONIC VIBRATOR
| European Patent Office | 2022
PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ULTRASONIC VIBRATOR
| European Patent Office | 2022
PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ULTRASONIC VIBRATOR
| European Patent Office | 2022
PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ULTRASONIC VIBRATOR
| European Patent Office | 2022
| European Patent Office | 2017