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Preparation method of high-insulation silicon carbide fiber reinforced ceramic composite material
The invention provides a preparation method of a high-insulation silicon carbide fiber reinforced ceramic composite material. The preparation method comprises the following steps: preparing a precursor, preparing silicon carbide fibers with lanthanum oxide particles compounded on the surfaces, preparing silicon carbide fibers with lanthanum oxide whiskers compounded on the surfaces, and preparing high-insulation silicon carbide fiber reinforced ceramic. The invention also provides the high-insulation silicon carbide fiber reinforced ceramic composite material prepared by the method. According to the silicon carbide fiber reinforced ceramic composite material provided by the invention, the toughness of the material is greatly improved by dispersing the silicon carbide fiber in the silicon carbide ceramic, the dielectric parameter of the silicon carbide fiber is reduced by compounding the lanthanum oxide whisker on the surface of the silicon carbide fiber, and meanwhile, the silicon oxide and other materials are dispersed in the silicon carbide ceramic, the dielectric parameter of the silicon carbide ceramic is further reduced, and the insulativity is improved.
本发明提供了一种高绝缘碳化硅纤维增强陶瓷复合材料的制备方法，包括以下步骤：前驱体的制备、表面复合氧化镧粒子的碳化硅纤维的制备、表面复合氧化镧晶须的碳化硅纤维的制备、高绝缘碳化硅纤维增强陶瓷的制备。本发明还提供了上述方法制得的高绝缘碳化硅纤维增强陶瓷复合材料。本发明提供的碳化硅纤维增强陶瓷复合材料，通过在碳化硅陶瓷中分散碳化硅纤维大大提高了材料的韧性，在碳化硅纤维表面复合氧化镧晶须，降低了碳化硅纤维的介电参数，同时在碳化硅陶瓷中分散氧化硅等材料，进一步降低了碳化硅陶瓷的介电参数，提高了绝缘性。
Preparation method of high-insulation silicon carbide fiber reinforced ceramic composite material
The invention provides a preparation method of a high-insulation silicon carbide fiber reinforced ceramic composite material. The preparation method comprises the following steps: preparing a precursor, preparing silicon carbide fibers with lanthanum oxide particles compounded on the surfaces, preparing silicon carbide fibers with lanthanum oxide whiskers compounded on the surfaces, and preparing high-insulation silicon carbide fiber reinforced ceramic. The invention also provides the high-insulation silicon carbide fiber reinforced ceramic composite material prepared by the method. According to the silicon carbide fiber reinforced ceramic composite material provided by the invention, the toughness of the material is greatly improved by dispersing the silicon carbide fiber in the silicon carbide ceramic, the dielectric parameter of the silicon carbide fiber is reduced by compounding the lanthanum oxide whisker on the surface of the silicon carbide fiber, and meanwhile, the silicon oxide and other materials are dispersed in the silicon carbide ceramic, the dielectric parameter of the silicon carbide ceramic is further reduced, and the insulativity is improved.
本发明提供了一种高绝缘碳化硅纤维增强陶瓷复合材料的制备方法，包括以下步骤：前驱体的制备、表面复合氧化镧粒子的碳化硅纤维的制备、表面复合氧化镧晶须的碳化硅纤维的制备、高绝缘碳化硅纤维增强陶瓷的制备。本发明还提供了上述方法制得的高绝缘碳化硅纤维增强陶瓷复合材料。本发明提供的碳化硅纤维增强陶瓷复合材料，通过在碳化硅陶瓷中分散碳化硅纤维大大提高了材料的韧性，在碳化硅纤维表面复合氧化镧晶须，降低了碳化硅纤维的介电参数，同时在碳化硅陶瓷中分散氧化硅等材料，进一步降低了碳化硅陶瓷的介电参数，提高了绝缘性。
Preparation method of high-insulation silicon carbide fiber reinforced ceramic composite material
一种高绝缘碳化硅纤维增强陶瓷复合材料的制备方法
WU BAOLIN (author) / HOU ZHENHUA (author) / WU DI (author)
2021-12-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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