Carbon layer derived from carbide ceramics and preparation method thereof
US9957456B2 · kind B2 · utility
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Key dates
| Filing date | Nov 19, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Jan 31, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a carbon layer derived from carbide ceramics, wherein metal or non-metal atoms are extracted selectively from the surface of carbide ceramics to form voids, which, in turn, are filled with carbon synthesized by a carbon compound, thereby providing improved roughness and hardness, as well as to a method for preparing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.