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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide ceramic and hot isostatic pressing sintering process thereof
The invention provides a silicon carbide ceramic. The silicon carbide ceramic comprises, by weight, 45-96.8 parts of silicon carbide; 1-15 parts of calcium boride; 1-15 parts of an aluminum carbide functionally graded material; 1-20 parts of a metal simple substance; 0.1-3 parts of boron carbide; and 0.1-2 parts of carbon. The calcium boride can improve the compactness of the material and is also a good reinforcing and toughening material, the aluminum carbide functionally graded material is an excellent reinforcing and toughening material of silicon carbide ceramics, and the metal elementary substance not only has good ductility, but also can react with a residual carbon source in a structure to generate a corresponding cemented carbide phase, and boron carbide and carbon are used as sintering aids of the silicon carbide ceramic, so that sintering densification is facilitated.
本发明提供了一种碳化硅陶瓷，该碳化硅陶瓷的原料包括以下重量份数组分：碳化硅：45～96.8份；硼化钙：1～15份；碳化铝功能梯度材料：1～15份；金属单质：1～20份；碳化硼：0.1～3份；碳：0.1～2份。硼化钙可以提高材料的致密性，且也是一种很好的增强补韧材料，碳化铝功能梯度材料是一种优异的碳化硅陶瓷的增强补韧材料，而金属单质不仅自身具有良好的延展性，还可以与组织中的残留碳源反应生成相应的硬质碳化物相，起到增韧补强作用，碳化硼和碳作为碳化硅陶瓷的烧结助剂，有利于促进烧结致密化。
Silicon carbide ceramic and hot isostatic pressing sintering process thereof
The invention provides a silicon carbide ceramic. The silicon carbide ceramic comprises, by weight, 45-96.8 parts of silicon carbide; 1-15 parts of calcium boride; 1-15 parts of an aluminum carbide functionally graded material; 1-20 parts of a metal simple substance; 0.1-3 parts of boron carbide; and 0.1-2 parts of carbon. The calcium boride can improve the compactness of the material and is also a good reinforcing and toughening material, the aluminum carbide functionally graded material is an excellent reinforcing and toughening material of silicon carbide ceramics, and the metal elementary substance not only has good ductility, but also can react with a residual carbon source in a structure to generate a corresponding cemented carbide phase, and boron carbide and carbon are used as sintering aids of the silicon carbide ceramic, so that sintering densification is facilitated.
本发明提供了一种碳化硅陶瓷，该碳化硅陶瓷的原料包括以下重量份数组分：碳化硅：45～96.8份；硼化钙：1～15份；碳化铝功能梯度材料：1～15份；金属单质：1～20份；碳化硼：0.1～3份；碳：0.1～2份。硼化钙可以提高材料的致密性，且也是一种很好的增强补韧材料，碳化铝功能梯度材料是一种优异的碳化硅陶瓷的增强补韧材料，而金属单质不仅自身具有良好的延展性，还可以与组织中的残留碳源反应生成相应的硬质碳化物相，起到增韧补强作用，碳化硼和碳作为碳化硅陶瓷的烧结助剂，有利于促进烧结致密化。
Silicon carbide ceramic and hot isostatic pressing sintering process thereof
一种碳化硅陶瓷及其热等静压烧结工艺
LI SHAOFENG (Autor:in) / LI PING (Autor:in) / YE CHUANJIAN (Autor:in) / LI JIADONG (Autor:in)
22.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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