A brief summary of tungsten technology development in Korea

作     者：Suk-Ho Hong Suk-Ho Hong

作者机构：DEMO Technology Division Advanced Technology Research CenterNational Fusion Research InstituteDaejeon 34133Korea 

出 版 物：《Tungsten》 (钨科技（英文）)

年 卷 期：2020年第2卷第1期

页      面：72-82页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This research was partially supported by Ministry of Science and Information and Communication Technology(ICT)under DEMO project(Grant No.CN1901-6) under Non-ITER procurement(Grant No.IN1910-2) KSTAR project(Grant No.EN1901) 

主　　题：Demonstration reactor Divertor Tungsten 

摘      要：A review of tungsten technology development in Korea is briefly *** to the upgrade plan of Korea super-conducting tokamak advanced research(KSTAR)tokamak associated with Korean fusion energy R&D program,graphite plasma-facing components will be replaced with tungsten-based ones to handle the high-peak heat load caused by an increase of heating power up to 26 *** technique to bond tungsten was developed and tungsten blocks were *** were installed at the central divertor in KSTAR and exposed to high heat *** high heat flux and long-pulse discharge,tungsten blocks were severely *** tungsten materials show movements towards the high field side,which is j×B *** COMSOL^(®)modeling described the melting event quantitatively *** failure of a water cooling system with a metal wall environment during a long-pulse plasma operation is very critical.