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Experimental and analytical results of carbon based materials under thermal shock heat loads for fusion application

Masanori Araki, Masato Akiba, Masahiro Seki, Masayuki Dairaku, Kenji Yokoyama1992年Fusion Engineering and DesignIF 1.7出版社

AbstractTo evaluate the durability and the lifetime of carbon materials as plasma facing components against plasma disruption, thermal shock tests were performed using an electron beam test facility. Experimental results show that the weight loss increases with heat flux at a constant absorbed energy. It is found that the erosion depth measured in the experiment is about 2 to 2.5 times larger than that predicted by the numerical analysis. Since solid particle emission is observed during heating experiments, the difference between experimental and numerical results is mainly attributable to the solid particle losses which are not considered in the numerical analysis.

日本語訳

Abstractプラズマ対向材料としての炭素材料の、プラズマディスラプションに対する耐久性と寿命を評価するため、電子ビーム試験装置を用いて熱衝撃試験を実施した。実験結果は、吸収エネルギーが一定の場合、重量損失が熱流束とともに増加することを示している。実験で測定された侵食深さは、数値解析によって予測された値の約2~2.5倍であることが見出された。加熱実験中に固体粒子の放出が観察されたことから、実験結果と数値解析結果の差は、主として数値解析では考慮されていない固体粒子損失に起因するものである。

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