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山崎 泰広*; 篠宮 啓介*; 奥村 忠晴*; 鈴木 賢治*; 菖蒲 敬久; 中村 唯我*
Quantum Beam Science (Internet), 7(2), p.14_1 - 14_12, 2023/05
The suspension plasma spray (SPS) technique has attracted attention because of its various microstructures, which can be achieved by mixing submicron spray particles with a solvent to form a suspension. Thermal barrier coatings (TBCs) with a columnar structure, which might achieve high strain tolerance, can be obtained using the SPS technique. In this study, the internal stress distribution of the SPS-TBC with different columnar structures was evaluated by hybrid measurement using high-energy synchrotron X-ray diffraction analysis and laboratory low-energy X-rays. The effect of microstructure on the internal stress distribution of the SPS-TBC was discussed on the basis of the experimental results. In addition, the in-plane internal stress was decreased by decreasing the column diameter. The thin columnar microstructure of the SPS-TBC has superior strain tolerance. The internal stresses in the column of the SPS-TBC are periodic decrements caused by stress relaxation in porous layers.
明午 伸一郎; 藤森 寛*; 甲斐 哲也; 春日井 好己; 大井 元貴; 小野 武博; 池崎 清美; 四宮 健司; 坂元 眞一
no journal, ,
J-PARCの1MW核破砕中性子源が完成した。本講演では、3GeVシンクロトロンから出射した3GeVの陽子ビームを核破砕中性子源及びミュオン源に供給する3GeV陽子ビーム輸送施設の概要について報告する。