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Tungsten mesh toughened hafnium carbonitride-based metal ceramic and preparation method thereof
The invention discloses tungsten mesh toughened hafnium carbonitride-based metal ceramic and a preparation method thereof. The tungsten mesh toughened hafnium carbonitride-based metal ceramic is composed of a hafnium carbonitride matrix and tungsten meshes distributed in the hafnium carbonitride matrix at intervals. The preparation method comprises the following steps: mixing HfC powder, HfN powder, carbon powder and carbon nitride powder, ball-milling the mixture, and drying and sieving the ball-milling product to obtain mixed powder, wherein in the mixed powder, the mass ratio of the HfC powder to the HfN powder is (1-7): 1; alternately stacking and laying the mixed powder and the tungsten meshes in a mold to obtain a to-be-sintered body; and performing spark plasma sintering on the to-be-sintered body to obtain the tungsten mesh toughened hafnium carbonitride-based metal ceramic. The tungsten mesh toughened hafnium carbonitride-based metal ceramic provided by the invention has excellent thermal shock resistance and ablation resistance.
本发明公开了一种钨网增韧碳氮化铪基金属陶瓷及其制备方法，所述钨网增韧碳氮化铪基金属陶瓷由碳氮化铪基体以及间隔分布于碳氮化铪基体中的钨网组成；其制备方法，包括如下步骤：将HfC粉，HfN粉，碳粉、氮化碳粉混合、球磨、干燥、过筛获得混合粉末；所述混合粉末中，按质量比计，HfC粉：HfN粉＝1‑7:1，将混合粉末、钨网交替层叠铺设于模具中获得待烧结体，将待烧结体进行放电等离子体烧结，即得钨网增韧碳氮化铪基金属陶瓷。本发明所提供的钨网增韧碳氮化铪基金属陶瓷具有优异的抗热震效果以及抗烧蚀性能。
Tungsten mesh toughened hafnium carbonitride-based metal ceramic and preparation method thereof
The invention discloses tungsten mesh toughened hafnium carbonitride-based metal ceramic and a preparation method thereof. The tungsten mesh toughened hafnium carbonitride-based metal ceramic is composed of a hafnium carbonitride matrix and tungsten meshes distributed in the hafnium carbonitride matrix at intervals. The preparation method comprises the following steps: mixing HfC powder, HfN powder, carbon powder and carbon nitride powder, ball-milling the mixture, and drying and sieving the ball-milling product to obtain mixed powder, wherein in the mixed powder, the mass ratio of the HfC powder to the HfN powder is (1-7): 1; alternately stacking and laying the mixed powder and the tungsten meshes in a mold to obtain a to-be-sintered body; and performing spark plasma sintering on the to-be-sintered body to obtain the tungsten mesh toughened hafnium carbonitride-based metal ceramic. The tungsten mesh toughened hafnium carbonitride-based metal ceramic provided by the invention has excellent thermal shock resistance and ablation resistance.
本发明公开了一种钨网增韧碳氮化铪基金属陶瓷及其制备方法，所述钨网增韧碳氮化铪基金属陶瓷由碳氮化铪基体以及间隔分布于碳氮化铪基体中的钨网组成；其制备方法，包括如下步骤：将HfC粉，HfN粉，碳粉、氮化碳粉混合、球磨、干燥、过筛获得混合粉末；所述混合粉末中，按质量比计，HfC粉：HfN粉＝1‑7:1，将混合粉末、钨网交替层叠铺设于模具中获得待烧结体，将待烧结体进行放电等离子体烧结，即得钨网增韧碳氮化铪基金属陶瓷。本发明所提供的钨网增韧碳氮化铪基金属陶瓷具有优异的抗热震效果以及抗烧蚀性能。
Tungsten mesh toughened hafnium carbonitride-based metal ceramic and preparation method thereof
一种钨网增韧碳氮化铪基金属陶瓷及其制备方法
SUN WEI (Autor:in) / PENG ZHENG (Autor:in) / XIONG XIANG (Autor:in)
16.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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