Fused spinel-zirconia grains and refractory product obtained from said grains
US10479730B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Oct 19, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Oct 19, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fused grains, in which the grains include a matrix of the zirconia-spinel eutectic coating inclusions composed essentially of a zirconia phase or of a spinel phase, the grains exhibit the following overall chemical composition, as percentages by weight expressed in the form of oxides: more than 45.0% and less than 95.0% of ZrO2, more than 3.0% and less than 40.0% of Al2O3, more than 1.0% and less than 20.0% of MgO, wherein ZrO2, Al2O3 and MgO together represent at least 95.0% of the weight of the grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.