Langasite-type oxide material, method for producing same, and raw material used in the production method
US9118011B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 12, 2011 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/3289
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An oxide material having a langasite-type structure having a desired surface condition and a desired outer shape is obtained stably. By adding at least one selected from the group consisting of Ir, Pt, Au, and Rh to a raw material which is a composition used for producing a desired oxide material as an additive element, it is possible to control the wettability between a die portion at a bottom end of a crucible and a melt of the raw material, thereby implementing stable production of the oxide material while controlling the wetting and spread of the melt of the raw material leaked out through a hole of the crucible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.