发明公开
- 专利标题： PRECURSOR SOLUTION FROM ANHYDROUS OR DEHYDRATED PRECURSORS AND METHOD FOR THE PREPARATION OF A LEAD-FREE PIEZOELECTRIC MATERIAL
- 专利标题（中）： 前的溶液的无水或干燥的前体和制造方法无铅压电材料的制备
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申请号： EP16175560.8申请日： 2016-06-21
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公开(公告)号： EP3176143A1公开(公告)日： 2017-06-07
- 发明人: CIMMINO, Angela , SALZILLO, Giovanna , DI MATTEO, Andrea , CASUSCELLI, Valeria
- 申请人： STMicroelectronics S.r.l.
- 申请人地址： Via C. Olivetti, 2 20864 Agrate Brianza (MB) IT
- 专利权人： STMicroelectronics S.r.l.
- 当前专利权人： STMicroelectronics S.r.l.
- 当前专利权人地址： Via C. Olivetti, 2 20864 Agrate Brianza (MB) IT
- 代理机构： Casciano, Lidia Giulia Rita
- 优先权： ITUB20156056 20151201
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; C04B35/622 ; C04B35/624 ; C04B35/632 ; C04B35/634 ; H01L41/187 ; H01L41/318 ; C01G23/00
摘要：
The present invention relates to a precursor solution for the preparation of a ceramic of the BZT-αBXT type, where X is selected from Ca, Sn, Mn and Nb, and α is a molar fraction selected in the range between 0.10 and 0.90, said solution comprising:
1) at least one anhydrous or dehydrated precursor compound of barium,
2) at least one anhydrous or dehydrated precursor compound selected from the group consisting of a calcium compound, a tin compound, a manganese compound, and a niobium compound,
3) at least one anhydrous precursor compound of zirconium,
4) at least one anhydrous precursor compound of titanium,
5) a solvent selected from the group consisting of polyols, alcohols, carboxylic acids, esters, ketones, ethers, and their mixtures,
6) a chelating agent.
The invention moreover relates to a method for the preparation of the precursor solution, to a piezoelectric material obtained from the precursor solution, to a method for the preparation of a film of the piezoelectric material, to a device comprising the piezoelectric material, and to the use of the piezoelectric material.
1) at least one anhydrous or dehydrated precursor compound of barium,
2) at least one anhydrous or dehydrated precursor compound selected from the group consisting of a calcium compound, a tin compound, a manganese compound, and a niobium compound,
3) at least one anhydrous precursor compound of zirconium,
4) at least one anhydrous precursor compound of titanium,
5) a solvent selected from the group consisting of polyols, alcohols, carboxylic acids, esters, ketones, ethers, and their mixtures,
6) a chelating agent.
The invention moreover relates to a method for the preparation of the precursor solution, to a piezoelectric material obtained from the precursor solution, to a method for the preparation of a film of the piezoelectric material, to a device comprising the piezoelectric material, and to the use of the piezoelectric material.
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