Rare-earth sintered body and manufacturing method
US7435698B2 · kind B2 · utility
2Cited by
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10Claims
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Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The object of the present invention is to provide a rare-earth oxide sintered body having low sintering temperature and high density. A boron compound is added at a ratio of 0.06 mol % or more and less than 25 mol % when converted into boron oxide (B2O3) to oxide powder of at least one of La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and Sc, the mixed powder is formed and sintered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.