Abstract
In a high-temperature environment, the pyrolytic reaction of the SiC fiber destroyed the chain structure of the fiber and cause fiber apparent weightlessness, the surface and internal of fiber produce porous structure defects. In order to improve high-temperature thermal stability of SiC fiber that the reunion composite powder (CP) of perlite and nanozirconia was prepared by atomized granulation technology, and the CP is sprayed the surface of SiC fiber by plasma spraying technology. The SiC fiber was completely ablation at 1200°C for 3h. On the contrary, the spraying CP of fiber is not affected, showing favorable high-temperature stability. The surface appearance of the fiber was analyzed by means of SEM, and the flame temperature Spray Watch.
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