A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of carbon/carbon composite material surface metal tungsten gradient coating
The invention relates to a preparation method of a carbon/carbon composite material surface metal tungsten gradient coating, which aims to solve the problems of poor compatibility between the C/C composite material and W, high tendency to generating the WC brittle phase and the like. The method comprises the following steps: previously preparing a SiC/WSi2 transition layer on the C/C composite material surface by a two-step embedding process to improve the physicochemical compatibility between the C/C composite material and metal W; and finally, successfully preparing a W coating on the C/C composite material surface coated with the SiC/WSi2 transition layer by an ultrasonic plasma spraying process, thereby preparing the C-Si-W gradient coating on the C/C composite material surface. The SiC/WSi2 transition layer and sprayed W overcoating have compact structure, and are firmly combined with the base. The C/C composite material with the C-Si-W gradient coating maintains the advantages of high strength, low specific gravity and the like, and also has excellent properties of the metal W.
Preparation method of carbon/carbon composite material surface metal tungsten gradient coating
The invention relates to a preparation method of a carbon/carbon composite material surface metal tungsten gradient coating, which aims to solve the problems of poor compatibility between the C/C composite material and W, high tendency to generating the WC brittle phase and the like. The method comprises the following steps: previously preparing a SiC/WSi2 transition layer on the C/C composite material surface by a two-step embedding process to improve the physicochemical compatibility between the C/C composite material and metal W; and finally, successfully preparing a W coating on the C/C composite material surface coated with the SiC/WSi2 transition layer by an ultrasonic plasma spraying process, thereby preparing the C-Si-W gradient coating on the C/C composite material surface. The SiC/WSi2 transition layer and sprayed W overcoating have compact structure, and are firmly combined with the base. The C/C composite material with the C-Si-W gradient coating maintains the advantages of high strength, low specific gravity and the like, and also has excellent properties of the metal W.
Preparation method of carbon/carbon composite material surface metal tungsten gradient coating
GUO LINGJUN (author) / PENG JIAN (author) / LI HEJUN (author) / LI KEZHI (author) / FU QIANGANG (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Preparation method of carbon/carbon composite material coating
| European Patent Office | 2016
| European Patent Office | 2022
| European Patent Office | 2015
Preparation method of silicon carbide coating for carbon-carbon composite material
| European Patent Office | 2024
| European Patent Office | 2024