Electro-conductive B4C-TiB2 composite ceramic and preparation method thereof
US11795111B2 · kind B2 · utility
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Key dates
| Filing date | Apr 15, 2023 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Apr 15, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/96
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An electro-conductive B4C—TiB2 has a microstructure in which large B4C grains are coated by small TiB2 grains. The composite ceramic includes 10˜30% by volume of TiB2. A method for preparing the electro-conductive B4C—TiB2 composite ceramic includes: (1) weighing B4C, TiC, and amorphous B powder; (2) mixing evenly and drying thoroughly the powders; and (3) loading the mixed powder into a graphite mold; and placing the graphite mold in a spark plasma sintering furnace for sintering under vacuum, where the sintering is performed at 2000° C. and 50 MPa for 5˜20 min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.