Chemical erosion of carbon based materials in fusion devices

被引:261
作者
Roth, J
机构
[1] Max-Planck-Inst. fur Plasmaphysik, EURATOM Association
关键词
carbon; composite materials; chemical erosion; flux dependence; ion irradiation;
D O I
10.1016/S0022-3115(98)00658-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the last two years the basic erosion mechanisms of carbon due to thermal and energetic hydrogen atoms have been resolved and the range of erosion yield data has been extended into new regimes of ion flux and energy. The present paper reviews the recent achievements in fundamental understanding. Model prediction of the dependence on ion energy and flux are compared with new experimental results from fusion experiments and plasma simulators. For graphites doped with B or Si the decrease of the erosion yield as function of energy and temperature indicates which elemental steps in the erosion process are influenced. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:51 / 57
页数:7
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