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US 2024/0043336 A1Published application
Alumina-based fused grain
OwnerNadia FREDERICH, Samuel Noel Patrice MARLIN +1inventors
InventorsNadia FREDERICH, Samuel Noel Patrice MARLIN, Shuqiong LIANG
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Abstract
Disclosed is a fused grain having the following chemical composition, expressed in percentages by mass on the basis of the oxides: ZrO2+HfO2: 2% to 13%; elements other than ZrO2, HfO2, Y2O; and Al2O3: ≤2%. Y2O3+Al2O3: made up to 100%; with 0.0065≤Y2O;/(ZrO2+HfO2)≤0.1300.
Claims15
A fused grain having the following chemical analysis, as weight percentages based on the oxides:
- ZrO2+HfO2:
- ≥2% and <10%;
- Elements other than ZrO2, HfO2, Y2O3 and Al2O3:≤2%;
- Y2O3+Al2O3:
- balance to 100%;
- with 0.0065≤Y2O3/(ZrO2+HfO2)≤0.1300.
3 more elements
Dependencies are inferred from the claim text.