| YANG Zhang-fu,CHENG Xu-dong,ZHANG Zi-jun,DENG Fei-fei,GAO Zhong-bao,ZHANG Qin-yi,ZHANG Qiao-xin.Study on Nano-structure Zirconia-matrix Thermal Barrier and Ablative Composite Coating[J],36(1):42-44,47 |
| Study on Nano-structure Zirconia-matrix Thermal Barrier and Ablative Composite Coating |
| Received:October 25, 2006 Revised:February 10, 2007 |
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| DOI： |
| KeyWord:Air plasma spraying Thermal barrier and ablation Property of thermal protection |
| Author | Institution |
| YANG Zhang-fu |
State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology , Wuhan , China |
| CHENG Xu-dong |
State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology , Wuhan , China |
| ZHANG Zi-jun |
State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology , Wuhan , China |
| DENG Fei-fei |
State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology , Wuhan , China |
| GAO Zhong-bao |
State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology , Wuhan , China |
| ZHANG Qin-yi |
College of Material Engineering of Wuhan University of Technology, Wuhan , China |
| ZHANG Qiao-xin |
College of Material Engineering of Wuhan University of Technology, Wuhan , China |
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| Abstract: |
| Nano-structure zirconia was doped with a certain amount of two kinds of inorganic ablative material, silica and copper. Then thermal protective composite coating was prepared on TC4-matrix by air plasma sprayed. Ablative thermal protection test was simulated by plasma torch . Phase, microstructure and distribution of compositon were charactered by some test means such as XRD, SEM and EMPA. The results show that ablative thermal protection occurred in evidence on the surface of composite coating, but liquidation only appeared inside coating. As a whole, thermal protection capability of composite coating is superior to that of single PYSZ coating. Average bond strength of composite coating is 47.7Mpa. |
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