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Silicon carbide composite material and preparation method thereof
The invention relates to the field of composite materials, and provides a silicon carbide composite material and a preparation method thereof. The silicon carbide composite material comprises a carbon matrix and a silicon carbide composite coating deposited on the surface of the carbon matrix, wherein the silicon carbide composite coating comprises at least two silicon carbide inner coatings with different carbon contents and at least one silicon carbide outer coating with basically unchanged carbon content; in the silicon carbide composite coating, the carbon content of the silicon carbide inner coating is gradually reduced in the direction away from the carbon matrix, the C/Si molar ratio in the silicon carbide inner coating is (1-2.5): 1, and the C/Si molar ratio in the silicon carbide outer coating is (0.9-1.1): 1. According to the silicon carbide composite material provided by the invention, the carbon matrix and the silicon carbide composite coating have relatively good binding force.
本发明涉及复合材料领域，提供了一种碳化硅复合材料及其制备方法。所述碳化硅复合材料包括碳基体及沉积于所述碳基体表面的碳化硅复合涂层，所述碳化硅复合涂层包括至少两层碳含量不同的碳化硅内涂层和至少一层碳含量基本不变的碳化硅外涂层；所述碳化硅复合涂层中，碳化硅内涂层的碳含量沿远离碳基体的方向逐渐减少，所述碳化硅内涂层中C/Si摩尔比为（1‑2.5）:1，所述碳化硅外涂层中C/Si摩尔比为（0.9‑1.1）:1。本发明提供的碳化硅复合材料的碳基体与碳化硅复合涂层之间有较好的结合力。
Silicon carbide composite material and preparation method thereof
The invention relates to the field of composite materials, and provides a silicon carbide composite material and a preparation method thereof. The silicon carbide composite material comprises a carbon matrix and a silicon carbide composite coating deposited on the surface of the carbon matrix, wherein the silicon carbide composite coating comprises at least two silicon carbide inner coatings with different carbon contents and at least one silicon carbide outer coating with basically unchanged carbon content; in the silicon carbide composite coating, the carbon content of the silicon carbide inner coating is gradually reduced in the direction away from the carbon matrix, the C/Si molar ratio in the silicon carbide inner coating is (1-2.5): 1, and the C/Si molar ratio in the silicon carbide outer coating is (0.9-1.1): 1. According to the silicon carbide composite material provided by the invention, the carbon matrix and the silicon carbide composite coating have relatively good binding force.
本发明涉及复合材料领域，提供了一种碳化硅复合材料及其制备方法。所述碳化硅复合材料包括碳基体及沉积于所述碳基体表面的碳化硅复合涂层，所述碳化硅复合涂层包括至少两层碳含量不同的碳化硅内涂层和至少一层碳含量基本不变的碳化硅外涂层；所述碳化硅复合涂层中，碳化硅内涂层的碳含量沿远离碳基体的方向逐渐减少，所述碳化硅内涂层中C/Si摩尔比为（1‑2.5）:1，所述碳化硅外涂层中C/Si摩尔比为（0.9‑1.1）:1。本发明提供的碳化硅复合材料的碳基体与碳化硅复合涂层之间有较好的结合力。
Silicon carbide composite material and preparation method thereof
一种碳化硅复合材料及其制备方法
LIAO JIAHAO (author) / PENG YALI (author) / CHAI PAN (author) / WAN QIANG (author)
2024-06-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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