发明名称 |
METHOD FOR PREPARING PIEZOELECTRIC MATERIALS |
摘要 |
<p>The invention concerns a method for preparing a material based on piezoelectric ceramic oxide(s) comprising the following steps: a) wet deposition on at least one surface of a substrate of a layer of a dispersion comprising a piezoelectric ceramic oxide powder and a piezoelectric ceramic oxide precursor sol-gel solution identical to or different from the piezoelectric oxide constituting the powder; b) repeating a) once or several times, so as to obtain a stack of at least two layers; c) heat-treating said layers so as to transform them into corresponding ceramics; d) wet-shrink impregnation of the stack obtained at c) with a sol-gel solution identical to the one used in step a); e) optionally repeating step d) once or several times; f) heat-treating said stack, so as to transform the sol-gel impregnating the stack into the corresponding piezoelectric ceramics.</p> |
申请公布号 |
EP1756882(A1) |
申请公布日期 |
2007.02.28 |
申请号 |
EP20050778186 |
申请日期 |
2005.06.16 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
BOY, PHILIPPE;EHRHART, GILLES;BELLEVILLE, PHILIPPE |
分类号 |
H01L41/318;H01L41/39;H01L41/43 |
主分类号 |
H01L41/318 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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