In situ nanostructured ceramic matrix composite coating prepared by reactive plasma spraying micro-sized Al-Fe2O3 composite powders |
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| Authors: | Yong Yang Dianran YanYanchun Dong Lei WangXueguang Chen Jianxin ZhangJining He Xiangzhi Li |
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| Affiliation: | School of Materials Science and Engineering, Hebei University of Technology, Tianjin, PR China |
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| Abstract: | In situ nanostructured ceramic matrix composite coating was prepared by reactive plasma spraying micro-sized Al-Fe2O3 composite powders. The microstructure of the composite coating was characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy, respectively. The results indicated that the composite coating exhibited dense and crack-free microstructure with a number of spherical α-Fe and γ-Al2O3 nano-grains embedded within equiaxed and columnar FeAl2O4 nano-grains matrix. The composite coating showed markedly higher toughness and wear resistance than the conventional Al2O3 coating. |
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| Keywords: | Coating materials Composite materials Nanostructured materials Solid state reaction Mechanical properties Reactive plasma spraying (RPS) |
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