Composition for injection molding, sintered compact, and method for producing sintered compact
US-2015376397-A1 · Dec 31, 2015 · US
Erosion-resistant ceramic material, powder, slip and component
US11028018B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11028018-B2 |
| Application number | US-201716466070-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2017 |
| Priority date | Dec 8, 2016 |
| Publication date | Jun 8, 2021 |
| Grant date | Jun 8, 2021 |
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- Title
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Abstract
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The use of magnesium oxide, reactive alumina and aluminium oxide as a base provides for a new erosion-resistant material upon sintering.
First claim
Opening claim text (preview).
The invention claimed is: 1. A powder comprising (in % by weight): aluminum oxide in an amount of from 92.0% to <99.0%; and spinel in a proportion of 8.0%-1.0%. 2. The powder as claimed in claim 1 , which contains γ′-aluminum oxide. 3. The powder as claimed in claim 1 , which contains α-alumina as aluminum oxide. 4. The powder as claimed in claim 1 , which contains tabular aluminas as aluminum oxide. 5. The powder as claimed in claim 1 , which contains reactive alumina as aluminum oxide as an additive for reducing a water content and for improving a processability in a ceramic slip, in a proportion of from 10% by weight to 25% by weight. 6. The powder as claimed in claim 4 , wherein the tabular alumina has at least three different particle size fractions. 7. The powder as claimed in claim 5 , wherein the reactive alumina has at least two different particle size fractions. 8. The powder as claimed in claim 4 , wherein the tabular aluminas have a maximum particle size of up to 10 mm. 9. The powder as claimed in claim 1 , which comprises no silicon oxide and/or no silicon compounds. 10. A slip comprising at least a liquid and a powder as claimed in claim 1 .
Assignees
Inventors
Classifications
Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4) · CPC title
Magnesium oxides or oxide-forming salts thereof · CPC title
- C04B35/10Primary
based on aluminium oxide · CPC title
- C04B35/117Primary
Composites · CPC title
Spinel structure AB2O4 · CPC title
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Frequently asked questions
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- What does patent US11028018B2 cover?
- The use of magnesium oxide, reactive alumina and aluminium oxide as a base provides for a new erosion-resistant material upon sintering.
- Who is the assignee on this patent?
- Siemens Ag, Siemens Energy Global Gmbh & Co Kg
- What technology area does this patent fall under?
- Primary CPC classification C04B35/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 08 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).