Design and optimization of W/Cu divertor mock-ups

作     者：Qiang Li Weiping Shen 

作者机构：Lab of Special Ceramics and P/M Research and Training Center on Fusion Reactor Materials University of Science and Technology Beijing. Beijing 100083China 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2007年第14卷第2期

页      面：157-159页

核心收录：

学科分类：07[理学] 08[工学] 082701[工学-核能科学与工程] 070204[理学-等离子体物理] 0827[工学-核科学与技术] 0702[理学-物理学] 

基　　金：This work was financially supported by the National High-Tech Research and Development Program of China ("863" Program)(No.2003AA305340) 

主　　题：divertor mock-ups tungsten thermal stress 

摘      要：Tungsten is a promising candidate for plasma-facing materials to cover the surface of the divertor plate in the design of an international thermonuclear experimental reactor （ITER）. Copper as a heat sink material serves to transfer heat excellently. Divertor mock-ups with W/Cu graded interlayers were designed to reduce thermal stresses. Thermally induced stresses and temperature in a W/Cu divertor mock-up were analyzed using the finite element method. The graded structures with different exponents p and thick- nesses were designed and discussed. The conclusions drawn from these analyses are that thermal stresses reach the minimum and the temperature is suitable when exponent p is 1.5 and the thickness of five graded interlayers is 5 mm.