334 X線による遮熱コーティングの材料特性と応力評価(OS5-3 組織制御と残留応力,OS5 コーティング部材の組織制御と高機能化3)

概要

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Thermal barrier coatings (TBCs) were made on the cylindrical substrates of which radii were 5mm, 10mm and 15mm. In addition to the cylindrical specimens, the TBC was made on a plate substrate. As the bond coating, NiCoCrAlY was pressureless plasma sprayed, and then zirconia with 8 mole percents yittria was air plasma sprayed as the top coating. The TBC specimens were exposed in the atmosphere at 1373K for 0h, 200h and 500h. The distributions of the 3-dimentional residual stress in the top coating were measured by laboratory X-rays and hard synchrotron X-rays. Comparing the residual stress distribution by the experiment with that by the analysis, the characteristic of the top coatings made by plasma-spraying was clarified.
一般社団法人日本機械学会の論文
2005-11-03