发明名称 |
Process for producing ferroelectric crystalline material |
摘要 |
Lead germanate, Pb5Ge3O11, or lead germanate/silicate in which up to 2/3 on a molar basis of the germanium has been substituted with silicon, can be formed from a glassy state to a ferroelectric state by a simple annealing process. The lead germanate or lead germanate/silicate is heated to a temperature sufficient to anneal it into a crystalline phase, then cooled below the ferroelectric transition temperature for the composition while an electric field is applied.
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申请公布号 |
US4027074(A) |
申请公布日期 |
1977.05.31 |
申请号 |
US19740498695 |
申请日期 |
1974.08.19 |
申请人 |
LECO CORPORATION |
发明人 |
CROSS, LESLIE E.;KUNZ, RAYMOND J.;NEWNHAM, ROBERT E. |
分类号 |
C01G17/00;C01B33/20;C03C10/00;C30B1/02;C30B29/32;C30B29/34;H01G7/02;(IPC1-7):C01G17/00;B32B9/00 |
主分类号 |
C01G17/00 |
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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