Alumina-based ceramics for core materials
US4156614A · kind A · utility
21Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1977 |
| Grant date | May 29, 1979 |
| Priority date | — |
| Expiry date | Oct 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/101
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cores made of alumina-based ceramics, such as .beta.-alumina materials, are substantially non-reactive with directionally solidified eutectic and superalloy materials, do not cause hot cracking of the same, and are easily leachable from the cast metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.