Infrared thermal wave imaging for nondestructive detection and measurement of the C/SiC composites

Xiaodong Deng, Laifei Cheng, Hui Mei, Lei Sun, Litong Zhang, Yongdong Xu, Zhixin Meng, Donglin Zhao

科研成果: 期刊稿件文章同行评审

9 引用 (Scopus)

摘要

C/SiC composites drilled with the blind holes of various diameters and various depths were prepared in order to simulate defects of air voids or delaminations under the surface of the material. Thermographic technique, due to its high sensitivity to thermal radiation ability of different materials, was utilized to detect sizes and locations of the defects in specimens. The detection resolution, advantages and disadvantages of thermographic technique were compared with those of X-ray radiography and X-ray CT. The results indicate that thermographic technique is able to detect the geometries, dimensions and depths of the defects in C/SiC composite. For the blind holes with the same depth, the measurement error of diameter and depth increases as the diameters decrease; for the blind holes with the same diameter, the measurement error of diameter increases as the depths decrease, but the measurement error of depths reduces. The thermographic quantitative measurement of blind holes in C/SiC composites has a lower limit.

源语言英语
页(从-至)112-119
页数8
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
26
5
出版状态已出版 - 10月 2009

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