Optimization of ultra-high temperature antioxidation coating for C/SiC nozzle

doi:10.1109/ICEDME50972.2020.00044

	Optimization of ultra-high temperature antioxidation coating for C/SiC nozzle
	Kaifeng, Zhang 2; Shengzhu, Cao 2; Yanlong, Yang 1; Yuqing, Xiong 2; Hui, Zhou 2; Fuling, Tang 1
	2020-05-01
会议日期	May 1, 2020 - May 3, 2020
会议地点	Suzhou, China
关键词	Ablation Coatings Electron devices Hafnium oxides Nozzles Numerical methods Silicon Silicon carbide Ablation resistance Anti-oxidation coatings Composite coating films High temperature Mechanical erosion Quaternary systems Ultrahigh temperature Vulnerable area
DOI	10.1109/ICEDME50972.2020.00044
页码	168-172
英文摘要	In order to improve the structure of high temperature ablation resistance coating system of C/SiC material in engine nozzles, a gas turbulence nozzle model was established based on the mass, energy conservation and physical property equations. The numerical ablation method was used to calculate the line ablation rate of the nozzle coatings, and the accuracy of the model was verified by finite elements method. A multi-component composite coating system was founded by comparing the antiablation properties of different types of coatings and the compatibility between coatings. We analyzed the ablation behavior and mechanical erosion of the system. It is found that the linear ablation rates of the HfO2-ZrC-SiC-C/SiC and TaCZrC-SiC-C/SiC quaternary system at 2500K are suitable for engineering usage. The composite coating system of the nozzle is optimized, and the composite coating film system with the lowest ablation rate is selected in most vulnerable areas. HfO2-ZrC-SiCC/SiC quaternary system is suitable for using in the convergence area of the nozzle, and TaC-ZrC-SiC-C/SiC quaternary system is suitable in the throat expansion areas. The optimized ablation rate of the nozzle composite coating is about 0.18 mm/s at the throat line as the most vulnerable areas. © 2020 IEEE.
会议录	Proceedings - 2020 3rd International Conference on Electron Device and Mechanical Engineering, ICEDME 2020
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118193]
专题	材料科学与工程学院
作者单位	1.Lanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou; 730050, China 2.Key Laboratory of Vacuum Technology and Physics, Lanzhou; 730000, China;
推荐引用方式 GB/T 7714	Kaifeng, Zhang,Shengzhu, Cao,Yanlong, Yang,et al. Optimization of ultra-high temperature antioxidation coating for C/SiC nozzle[C]. 见:. Suzhou, China. May 1, 2020 - May 3, 2020.