WO2008081842A1 - 圧電磁器および圧電素子 - Google Patents

圧電磁器および圧電素子 Download PDF

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WO2008081842A1
WO2008081842A1 PCT/JP2007/075032 JP2007075032W WO2008081842A1 WO 2008081842 A1 WO2008081842 A1 WO 2008081842A1 JP 2007075032 W JP2007075032 W JP 2007075032W WO 2008081842 A1 WO2008081842 A1 WO 2008081842A1
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Prior art keywords
mass
ceramic material
metal element
parts
piezoelectric ceramic
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PCT/JP2007/075032
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English (en)
French (fr)
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Shuzo Iwashita
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Kyocera Corporation
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Priority claimed from JP2007016331A external-priority patent/JP5100138B2/ja
Priority claimed from JP2007129389A external-priority patent/JP5322401B2/ja
Priority claimed from JP2007195924A external-priority patent/JP5219421B2/ja
Application filed by Kyocera Corporation filed Critical Kyocera Corporation
Priority to EP07860261.2A priority Critical patent/EP2119686B1/en
Publication of WO2008081842A1 publication Critical patent/WO2008081842A1/ja

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Abstract

第１の発明は、組成式Ｂｉ４Ｔｉ３Ｏ１２・ｗ｛（１－ｘ）Ａ１－ｙ―ｚＢｉｙＲＥｚＴｉＯ３・ｘＢｉＦｅＯ３｝で表され、ＡがＭ１α（Ｍ２１／２Ｂｉ１／２）１－α、Ｍ１はアルカリ土類金属元素、Ｍ２はアルカリ金属元素、ＲＥは希土類元素であり、１．３０≦ｗ≦１．７５、０≦ｘ≦０．１０、０≦ｙ＋ｚ≦０．３０、０≦α≦１である成分１００質量部に対して、Ｍｎを酸化物（ＭｎＯ２）換算で０．０５質量部以上含有する、主成分がビスマス層状化合物からなる圧電磁器。 第２の発明は、組成式がＢｉ４Ｔｉ３Ｏ１２・ｗ（Ａ１－ｚＲＥｚ）ＴｉＯ３で表され、ＡがＭ１α（Ｍ２１／２Ｂｉ１／２）１－αであり、Ｍ１はアルカリ土類金属元素、Ｍ２はアルカリ金属元素、ＲＥが希土類元素であり、０．２≦ｗ、０．０５≦ｚ≦０．３、０≦α≦１である主成分１００質量部と、Ｍｎを酸化物（ＭｎＯ２）換算で０．０５～２．０質量部とを含有する、ビスマス層状化合物を主成分とする粒子間にＭｎが偏在していないことを特徴とする圧電磁器。  
PCT/JP2007/075032 2006-12-26 2007-12-26 圧電磁器および圧電素子 WO2008081842A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07860261.2A EP2119686B1 (en) 2006-12-26 2007-12-26 Piezoelectric ceramic material and piezoelectric element

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2006-349051 2006-12-26
JP2006349051 2006-12-26
JP2007016331A JP5100138B2 (ja) 2007-01-26 2007-01-26 圧電磁器および圧電素子
JP2007-016331 2007-01-26
JP2007-129389 2007-05-15
JP2007129389A JP5322401B2 (ja) 2007-05-15 2007-05-15 圧電磁器および圧電素子
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WO2009077213A1 (de) 2007-12-19 2009-06-25 Infracor Gmbh Verfahren zur behandlung von wasser mit chlordioxid
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