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A platform for research: civil engineering, architecture and urbanism
C/C composite material with high-temperature ceramic coating layer MTaO4 and preparation method thereof
The invention relates to the technical field of composite materials, and particularly discloses a C/C composite material with a high-temperature ceramic coating layer MTaO4 and a preparation method thereof. The method comprises steps: weighing monocrystalline silicon, aluminum oxide and calcium oxide, carrying out ball milling together with absolute ethyl alcohol, uniformly mixing, drying, and screening; embedding a C/C composite matrix in an alumina porcelain boat by using screened powder, and carrying out high-temperature calcination to form a transition layer containing silicon carbide andaluminosilicate on the surface of the C/C composite matrix; and spraying MTaO4 powder to the surface of the transition layer by adopting an atmospheric plasma spraying method to form the C/C compositematerial of which the surface is sprayed with the MTaO4 ceramic coating layer. The C/C composite material obtained by adopting the method disclosed by the invention can resist the ultrahigh temperature of 2000 DEG C or above for 10-120 minutes, and keeps good oxidation resistance and ablation resistance.
本发明涉及复合材料技术领域，具体公开了具有高温陶瓷涂层MTaO4的C/C复合材料及其制备方法，称取单晶硅、氧化铝、氧化钙，与无水乙醇一起进行球磨，混合均匀后干燥后过筛；通过过筛的粉末将C/C复合基体包埋在氧化铝瓷舟中，并进行高温煅烧，使C/C复合基体表面形成含碳化硅和铝硅酸盐的过渡层；采用大气等离子喷涂的方法将MTaO4粉末喷涂到过渡层表面，形成表面喷涂有MTaO4陶瓷涂层的C/C复合材料。采用本发明的方法得到的C/C复合材料能够在耐2000℃以上的超高温10‑120min，并保持良好的抗氧化和耐烧蚀性能。
C/C composite material with high-temperature ceramic coating layer MTaO4 and preparation method thereof
The invention relates to the technical field of composite materials, and particularly discloses a C/C composite material with a high-temperature ceramic coating layer MTaO4 and a preparation method thereof. The method comprises steps: weighing monocrystalline silicon, aluminum oxide and calcium oxide, carrying out ball milling together with absolute ethyl alcohol, uniformly mixing, drying, and screening; embedding a C/C composite matrix in an alumina porcelain boat by using screened powder, and carrying out high-temperature calcination to form a transition layer containing silicon carbide andaluminosilicate on the surface of the C/C composite matrix; and spraying MTaO4 powder to the surface of the transition layer by adopting an atmospheric plasma spraying method to form the C/C compositematerial of which the surface is sprayed with the MTaO4 ceramic coating layer. The C/C composite material obtained by adopting the method disclosed by the invention can resist the ultrahigh temperature of 2000 DEG C or above for 10-120 minutes, and keeps good oxidation resistance and ablation resistance.
本发明涉及复合材料技术领域，具体公开了具有高温陶瓷涂层MTaO4的C/C复合材料及其制备方法，称取单晶硅、氧化铝、氧化钙，与无水乙醇一起进行球磨，混合均匀后干燥后过筛；通过过筛的粉末将C/C复合基体包埋在氧化铝瓷舟中，并进行高温煅烧，使C/C复合基体表面形成含碳化硅和铝硅酸盐的过渡层；采用大气等离子喷涂的方法将MTaO4粉末喷涂到过渡层表面，形成表面喷涂有MTaO4陶瓷涂层的C/C复合材料。采用本发明的方法得到的C/C复合材料能够在耐2000℃以上的超高温10‑120min，并保持良好的抗氧化和耐烧蚀性能。
C/C composite material with high-temperature ceramic coating layer MTaO4 and preparation method thereof
具有高温陶瓷涂层MTaO4的C/C复合材料及其制备方法
2021-01-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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