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US 2023/0399263 A1Published application
Aluminous sintered product
OwnerThibault CHAMPION, Michel BOBOinventors
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Abstract
A sintered product having: the following chemical analysis, as percentage by mass based on the oxides: Al2O3: remainder to 100%, 0.26%≤Na2O≤4%, 0%≤oxides other than Al2O3 and Na2O≤6%, provided that SiO2≤2%, the following crystalline phases, as percentages by mass based on the total amount of crystalline phases: 5%≤beta-alumina≤37%, less than 6% of crystalline phases other than beta-alumina and alpha-alumina, remainder to 100%: alpha-alumina.
Claims31
A sintered product having:
- the following chemical analysis, as percentage by mass based on the oxides:
- Al2O3:
- remainder to 100%,
- 0.26%≤Na2O≤4%,
- 0%≤oxides other than Al2O3 and Na2O≤6%, provided that SiO2≤2%, —the following crystalline phases, as percentages by mass based on the total amount of crystalline phases:
- 5%≤beta-alumina≤37%,
- less than 6% of crystalline phases other than beta-alumina and alpha-alumina, remainder to 100%:
- alpha-alumina,
- an open porosity of greater than 10%.
6 more elements
Dependencies are inferred from the claim text.