106 炭素系複合材料の機械的特性に及ぼす照射損傷の影響(超塑性と材料および造形法)

概要

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Carbon materials have been taken as one of the candidate materials for core structural components of the high temperature gas cooled reactors and for plasma facing components of the fusion experimental devices, since they have good nuclear characteristics, high thermal conductivity and excellent mechanical properties at high temperatures. However, their material properties change due to radiation damage and their thermal conductivities at high temperatures are not sufficient in order to apply them for the high performance reactors and the next fusion devices, it is necessary to study on the changes of the material properties and the microstructures due to radiation damage and to develop the excellent carbon composite materials that have more stable properties to radiation damage and higher thermal conductivity at high temperatures. Recently, carbon/copper-based materials with high thermal conductivity and good stability at high temperatures, which are named carbon alloys, have been developed by adding a small amount of titanium. In this study, high energy ions of Cu^<2+> and Ni^<13+> are irradiated to the carbon alloys and the changes of the mechanical properties are evaluated by a ultra micro hardness tester. And the recovery phenomenon of the mechanical properties is also examined by a heat treatment at a high temperature after irradiation.
社団法人日本機械学会の論文
2006-09-14