Molten grains of alumina-zirconia
US9212097B2 · kind B2 · utility
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3References
12Claims
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Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/762
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a fused grit having the following chemical analysis, in wt %: ZrO2+HfO2: 38.0-46.0%; Al2O3: the remainder up to 100%; SiO2: 0.20-0.60%; Y2O3: 0.45 to 0.70%; TiO2: 1.00 to 2.00%; other oxides: <1.00%, the ratio of Y2O3/SiO2 being 0.80 to 2.00, and the tetragonal phase being 60 to 90% of the weight of the zirconia, the remainder being in monoclinic form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.