Melting Refining Mechanisms in Supersonic Atmospheric Plasma Spraying
作者： Wei Tao Zhao , Jiu Hui Wu , Yu Bai , Zhi Hai Han
DOI: 10.1007/S11090-012-9395-7
关键词:
摘要: In recent years, Yttria-stabilized zirconia based thermal barrier coatings (TBCs) are deposited by newly-developed high-efficiency supersonic atmospheric plasma spraying (SAPS) technology. The final microstructure of the plasma-sprayed is strongly dependent on size distribution spray particles. It has been corroborated through experiments that there a special phenomenon particle melting refining in SAPS, as compared with conventional (APS). This greatly affects and distribution, which not explained reasonably up to now. Therefore, it necessary investigate behavior in-flight particles control analyze coating properties. this paper, breakup presented characterize refining, peak becomes bigger increasing distances, collision-coalescence. Furthermore, maximum entropy formalism, particle-size calculated result good accordance experiment results, verifies mechanism analysis paper. work could provide more efficient applications SAPS technology high-performance TBCs.
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