发明名称 |
Crucible for melting rare earth element alloy and rare earth element alloy |
摘要 |
A crucible comprising Al2O3 and at least one selected from rare earth oxides inclusive of Y2O3 as main components and characterized by firing at 500-1,800° C., the distribution of the rare earth oxide at a higher proportion in a fine particle portion having a particle size of-up to 0.5 mm than in a coarse particle portion having a particle size in excess of 0.5 mm, and the substantial absence of the reaction product of the rare earth oxide with Al2O3 is suitable for the melting of a rare earth alloy. |
申请公布号 |
US2005016635(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20040495452 |
申请日期 |
2004.05.13 |
申请人 |
HASHIMOTO TAKAHIRO;MATSUMOTO FUKUJI;MINOWA TAKEHISA |
发明人 |
HASHIMOTO TAKAHIRO;MATSUMOTO FUKUJI;MINOWA TAKEHISA |
分类号 |
C04B35/117;C04B35/478;C04B35/505;C22B9/00;C22B59/00;F27B14/10;F27D1/00;(IPC1-7):C21B7/06 |
主分类号 |
C04B35/117 |
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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