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PIEZOELECTRIC CERAMIC COMPOSITION AND METHOD OF PRODUCING PIEZOELECTRIC CERAMIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition that is a HighQ material and has a high K constant and to provide a method of producing the piezoelectric ceramic composition.SOLUTION: A piezoelectric ceramic composition includes MgO as an additive in a base material represented by the general formula: A[PbSr(ZrTi)]+(1-A)[Pb{Mn(SbNb)}O] in which the A, x, y and z in the general formula satisfy 0.9≤A<1.0, 0.02≤x≤0.10, 0.45≤y≤0.53 and 0.00≤z≤1.00, respectively and the MgO is contained in a ratio of 0.25 wt% or less. The piezoelectric ceramic composition may have a particle size as measured by a line intercept method equal to or larger than a particle size of a piezoelectric ceramic composition having a base material of the same composition as that of the base material as mentioned above and containing no MgO.SELECTED DRAWING: Figure 4
【課題】ＨｉｇｈＱ材でかつＫ定数の高い圧電磁器組成物およびその製造方法を提供することを目的としている。【解決手段】一般式Ａ［Ｐｂ１−ｘＳｒｘ（Ｚｒ１−ｙＴｉｙ）］＋（１−Ａ）［Ｐｂ｛Ｍｎ１／３（Ｓｂ１−ｚＮｂｚ）２／３｝Ｏ３］で表される母材に添加剤としてＭｇＯを含み、前記一般式における前記Ａ、ｘ、ｙ、ｚが、それぞれ０．９≦Ａ＜１．０、０．０２≦ｘ≦０．１０、０．４５≦ｙ≦０．５３、０．００≦ｘ≦１．００、を満たすとともに、前記ＭｇＯが０．２５ｗｔ％以下の割合で含まれている圧電磁器組成物としている。またラインインターセプト法で測定した粒子径が前記母材の組成が同じでＭｇＯを含まない圧電磁器組成物の粒子径以上である圧電磁器組成物としてもよい。【選択図】図４
PIEZOELECTRIC CERAMIC COMPOSITION AND METHOD OF PRODUCING PIEZOELECTRIC CERAMIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition that is a HighQ material and has a high K constant and to provide a method of producing the piezoelectric ceramic composition.SOLUTION: A piezoelectric ceramic composition includes MgO as an additive in a base material represented by the general formula: A[PbSr(ZrTi)]+(1-A)[Pb{Mn(SbNb)}O] in which the A, x, y and z in the general formula satisfy 0.9≤A<1.0, 0.02≤x≤0.10, 0.45≤y≤0.53 and 0.00≤z≤1.00, respectively and the MgO is contained in a ratio of 0.25 wt% or less. The piezoelectric ceramic composition may have a particle size as measured by a line intercept method equal to or larger than a particle size of a piezoelectric ceramic composition having a base material of the same composition as that of the base material as mentioned above and containing no MgO.SELECTED DRAWING: Figure 4
【課題】ＨｉｇｈＱ材でかつＫ定数の高い圧電磁器組成物およびその製造方法を提供することを目的としている。【解決手段】一般式Ａ［Ｐｂ１−ｘＳｒｘ（Ｚｒ１−ｙＴｉｙ）］＋（１−Ａ）［Ｐｂ｛Ｍｎ１／３（Ｓｂ１−ｚＮｂｚ）２／３｝Ｏ３］で表される母材に添加剤としてＭｇＯを含み、前記一般式における前記Ａ、ｘ、ｙ、ｚが、それぞれ０．９≦Ａ＜１．０、０．０２≦ｘ≦０．１０、０．４５≦ｙ≦０．５３、０．００≦ｘ≦１．００、を満たすとともに、前記ＭｇＯが０．２５ｗｔ％以下の割合で含まれている圧電磁器組成物としている。またラインインターセプト法で測定した粒子径が前記母材の組成が同じでＭｇＯを含まない圧電磁器組成物の粒子径以上である圧電磁器組成物としてもよい。【選択図】図４
PIEZOELECTRIC CERAMIC COMPOSITION AND METHOD OF PRODUCING PIEZOELECTRIC CERAMIC COMPOSITION
圧電磁器組成物および圧電磁器組成物の製造方法
MITANI AKIHIRO (author) / KOBAYASHI RYOSUKE (author) / YAHATA NOBUTAKA (author) / OBA YOSHINARI (author)
2016-06-20
Patent
Electronic Resource
Japanese
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