QQ客服 官方微博 反馈留言

	Modeling of growth stress gradient effect on the oxidation rate at high temperature
	Yang, Fan ; Liu, Bin ; Fang, Dai-ning
	2010
关键词	High temperature Modeling Growth stress gradient Oxidation rate THERMAL-OXIDATION KINETIC-MODEL ALLOY COMPOSITES BEHAVIOR SILICON SOLIDS AL2O3
DOI	10.1631/jzus.A1000169
英文摘要	A new oxidation kinetics model is established for high-temperature oxidation. We assume that the interface reaction fast enough and the oxidation rate is controlled by diffusion process at high temperature. By introducing the growth stress gradient we modify the classical oxidation parabolic law. The modified factor of the oxidation rate constant is a function of growth strain, environment oxygen concentration, and temperature. The modeling results show that the stress gradient effect on the oxidation rate cannot be ignored. Growth strain will dominate whether the stress gradient effect promotes or slows down the oxidation process. The stress gradient effect becomes weaker at higher temperature. This effect is amplified at higher concentrations of environmental oxygen. Applied mechanical loads do not affect the oxidation rate. This model is available for high temperature oxidation of metals and alloys.; Engineering, Multidisciplinary; Physics, Applied; SCI(E); EI; CPCI-S(ISTP); 0
语种	英语
内容类型	会议论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/242959]
专题	工学院
推荐引用方式 GB/T 7714	Yang, Fan,Liu, Bin,Fang, Dai-ning. Modeling of growth stress gradient effect on the oxidation rate at high temperature[C]. 见:.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。