发明名称 |
Stabilisiertes Zirkoniumoxid. |
摘要 |
Ceramic tetragonal zirconia is stabilized against transformation to the undesirable monoclinic form by incorporation of a mixture of stabilizers comprising controlled amounts of dysprosia and ceria, together with either yttria or titania (or both). The mixture can be prepared by wet-mixing zirconia with nitrates of the stabilizer materials, followed by drying, then calcining, e.g., at 650 DEG C to drive off decompositon products, and then sintering at, e.g., 1465-1475 DEG C. |
申请公布号 |
DE68913853(D1) |
申请公布日期 |
1994.04.21 |
申请号 |
DE1989613853 |
申请日期 |
1989.08.10 |
申请人 |
W.R. GRACE & CO.-CONN., NEW YORK, N.Y., US |
发明人 |
QUADIR, TARIQ, COLUMBIA MARYLAND 21044, US |
分类号 |
C04B35/48;C01G25/02;C04B35/486 |
主分类号 |
C04B35/48 |
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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