2024-03-29T15:40:10Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002926
2022-12-15T03:36:08Z
154:501:502
453:454
X-Ray Study on Mechanical Behavior of Thermal Barrier Coated Film
熱遮へいコーティング膜の力学挙動のX線的研究
熱遮へいコーティング膜の力学挙動のX線的研究
鈴木, 賢治
39876
町屋, 修太郎
39877
田中, 啓介
39878
坂井田, 善久
39879
X-ray stress measurement
Thermal barrier coating
Plasma splay coating
Residual stress
Ceramics
Thermal barrier coating (TBC)of 8 wt% Y_2O_3-ZrO_2 was made by low-pressure plasma spraying. The coated film with 0.3 mm in thickness was removed from the substrate of Nimonic-263 by electropolishing. Tension and compression tests of removed films were conducted by using a specially designed gap jig.TBC films showed stress relaxation while keeping the displacement constant both tensile and compressive deformation. The X-ray method was used to measure the stress in the TBC film under bending. The stress measured by the X-ray method changed proportionally to the bending stress up to the magnitude of about 10 MPa both in tension and compression. When the bending stress of about 20 MPa was applied to the films, the X-ray stress did not increase because of sliding of the lamella structure. The sliding stress between lamellae was determined from the residual curvature of films after bending. It was about 10 MPa, which agreed with limit stress measured by the X-ray method.
journal article
日本材料学会
2000-01
application/pdf
材料
1
49
117
122
材料
AN00096175
05145163
https://niigata-u.repo.nii.ac.jp/record/2926/files/ZQ_49(1)_117-122.pdf
jpn