C/C composites with high thermal conductivity were developed in unidirectional, two-dimensional and felt types, and were fabricated as full-scale armor tile. Their thermal conductivity in the direction perpendicular to the plasma-side surface is 250 – 550 W/m°C, that is comparable to that of pyrolytic graphite. It was shown by heat load tests that the C/C composites have low surface erosion characteristics and high thermal shock resistance.Various kinds of C/C composites were successfully bonded to metal substrate, and their mechanical strength and thermal shock resistance were tested.
高熱伝導性を有するC/C複合材料を、一方向型、二次元型、および三次元型の各形態で開発し、フルスケールのアーマータイルとして作製した。プラズマ対向面に垂直な方向の熱伝導率は250～550 W/m°Cであり、これは熱分解黒鉛の熱伝導率に匹敵する。熱負荷試験により、C/C複合材料が低い表面侵食特性と高い耐熱衝撃性を有することが示された。各種C/C複合材料は金属基板への接合に成功し、その機械的強度と耐熱衝撃性が試験された。