发明名称 |
Barium titanate powder, semiconducting ceramic, and semiconducting ceramic electronic element |
摘要 |
The present invention provides barium titanate powder having a withstanding voltage of 800 V/mm or more and a specific resistance at room temperature of 100 OMEGA xcm or less, the specific resistance at room temperature undergoing substantially no time-course change. Barium titanate of the powder of the present invention assumes a cubic crystal system. The powder has a particle size of about 0.1 mu m or less; the ratio represented by BaCO3/BaO as obtained through XPS is about 0.42 or less; the lattice constant is about 0.4020 nm or more; and the ratio represented by Ba/Ti is about 0.988-0.995.
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申请公布号 |
US6162752(A) |
申请公布日期 |
2000.12.19 |
申请号 |
US19990309985 |
申请日期 |
1999.05.11 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
KAWAMOTO, MITSUTOSHI;NIIMI, HIDEAKI |
分类号 |
C04B35/46;C01G23/00;C04B35/468;H01C7/02;H01L23/15;(IPC1-7):C04B35/468 |
主分类号 |
C04B35/46 |
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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