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Piezoelectric ceramic material in bismuth laminar composite structure and preparation method of piezoelectric ceramic material
The invention discloses a piezoelectric ceramic material in a bismuth laminar composite structure and a preparation method of the piezoelectric ceramic material. The chemical formula of the material is [Ca(1-x)MexBi2Nb(2-2y)Me'2yO9]1-z-[Bi3-aMea(TiNb)1-bMe'2bO9]z, wherein Me and Me' are respectively doping elements suitable for different lattice positions; M is one or more of Li, Mn and Ce; Me' is one or more of Ta and W; x, y, z, a and b are respectively molar fractions: x is greater than or equal to 0 but less than or equal to 0.05, y is greater than or equal to 0 but less than or equal to 0.05, b is greater than or equal to 0 but less than or equal to 0.05 and z is greater than or equal to 0.2 but less than or equal to 0.8. The piezoelectric ceramic material has high Curie temperature, excellent piezoelectric property and adjustable comprehensive electric property and can be used for various high-temperature piezoelectric apparatuses.
Piezoelectric ceramic material in bismuth laminar composite structure and preparation method of piezoelectric ceramic material
The invention discloses a piezoelectric ceramic material in a bismuth laminar composite structure and a preparation method of the piezoelectric ceramic material. The chemical formula of the material is [Ca(1-x)MexBi2Nb(2-2y)Me'2yO9]1-z-[Bi3-aMea(TiNb)1-bMe'2bO9]z, wherein Me and Me' are respectively doping elements suitable for different lattice positions; M is one or more of Li, Mn and Ce; Me' is one or more of Ta and W; x, y, z, a and b are respectively molar fractions: x is greater than or equal to 0 but less than or equal to 0.05, y is greater than or equal to 0 but less than or equal to 0.05, b is greater than or equal to 0 but less than or equal to 0.05 and z is greater than or equal to 0.2 but less than or equal to 0.8. The piezoelectric ceramic material has high Curie temperature, excellent piezoelectric property and adjustable comprehensive electric property and can be used for various high-temperature piezoelectric apparatuses.
Piezoelectric ceramic material in bismuth laminar composite structure and preparation method of piezoelectric ceramic material
GUO DONG (Autor:in) / CAI KAI (Autor:in) / DENG PINGYE (Autor:in) / ZHANG CUIHONG (Autor:in) / JIANG FENG (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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