| 摘要 |
The carbonaceous material of the invention is protected from oxidation by boron carbonitride infiltrated (4) or deposited as a layer (8) containing, in atom %: - from 0 to 30% of oxygen, - from 1 to 98% of carbon, - from 1 to 98% of boron, and - from 1 to 98% of nitrogen. <IMAGE> |
