发明公开
- 专利标题： Ceramic composition
- 专利标题（中）： 陶瓷组合物。
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申请号： EP85112869.4申请日： 1985-10-10
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公开(公告)号： EP0177964A2公开(公告)日： 1986-04-16
- 发明人: Yamaguchi, Takashi , Nagasawa, Naomi , Tamura, Hidemasa
- 申请人： SONY CORPORATION
- 申请人地址： 7-35 Kitashinagawa 6-chome Shinagawa-ku Tokyo 141 JP
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： 7-35 Kitashinagawa 6-chome Shinagawa-ku Tokyo 141 JP
- 代理机构： TER MEER - MÜLLER - STEINMEISTER & PARTNER
- 优先权： JP213594/84 19841012
- 主分类号： C04B35/00
- IPC分类号： C04B35/00 ; G11B5/31 ; G11B5/147
摘要：
A ceramic composition particularly useful for use in thin film magnetic heads, the composition having the general formula:
wherein the ratio x/y is at least 0.74 but less than 1.00, the composition having a coefficient of thermal expansion closely matching that of the magnetic alloy film with which it is used so as to prevent separation of the two upon changes in temperature.
wherein the ratio x/y is at least 0.74 but less than 1.00, the composition having a coefficient of thermal expansion closely matching that of the magnetic alloy film with which it is used so as to prevent separation of the two upon changes in temperature.
公开/授权文献
- EP0177964B1 Ceramic composition 公开/授权日：1990-01-31
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