| 发明名称 |
METHOD FOR ENHANCING THE MECHANICAL STRENGTH OF AN SIC/SIC CERAMIC MATRIX COMPOSITE MATERIAL |
| 摘要 |
The invention relates to a method for improving the mechanical strength of a ceramic matrix composite material of the SiC/SiC type, this composite material being obtained by (a) forming a fiber preform from 3rd generation silicon carbide fibers and (b) forming a ceramic matrix around the fiber preform, this ceramic matrix comprising silicon carbide. The method comprises a chemical etching treatment of the surface of the fibers by bringing said fibers into contact with a solution comprising an oxidizer, this treatment being carried out before step (a) or between steps (a) and (b). |
| 申请公布号 |
US2014346136(A1) |
申请公布日期 |
2014.11.27 |
| 申请号 |
US201214367397 |
申请日期 |
2012.12.21 |
| 申请人 |
Commissariat à l'énergie atomique et aux énergies alternatives ;Centre National de la Recherche Scientifique |
发明人 |
Buet Emilien;Sauder Cédric;Poissonnet Sylvie;Vix-Guterl Cathie |
| 分类号 |
C04B41/91;C04B40/00;C04B41/53 |
主分类号 |
C04B41/91 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for improving the mechanical strength of a ceramic matrix composite material of the SiC/SiC type, this material being obtained by (a) forming a fiber preform from 3rd generation silicon carbide fibers and (b) forming a ceramic matrix around the fiber preform, said ceramic matrix comprising silicon carbide, which method comprises a chemical etching treatment of the surface of the fibers by bringing said fibers in contact with a solution comprising an oxidizer, this treatment being carried out before step (a) or between steps (a) and (b). |
| 地址 |
Paris FR |
