Leachable ceramic materials for use in casting
US12390853B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Jul 27, 2018 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/96
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Supports for supporting mould parts and/or cores in investment casting, comprise support material comprising: —⋅a mechanically supportive continuous matrix phase comprising alumina; ⋅at least one second phase interpenetrating the matrix phase and providing a pathway for leachants to penetrate into the material; wherein the support material comprises: in the range of 1 wt % and 12 wt % of the second phase; and less than 15 vol % voids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.