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Proceedings Paper

Stress imaging with mechanoluminescence
Author(s): Chao-Nan Xu; Yun Liu; Morito Akiyama; Kazuhiro Nonaka; Xu-Guang Zheng
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Paper Abstract

We report the realization of the dynamic image of stress distribution by developing a remarkably strong mechanoluminescence (ML) material of Sr0.975Al2O3.985:Eu0.01(SAO- E), which can emit four orders of magnitude larger intensity than that of the reported strong ML material of quartz crystal. This ML material can be mixed in the target composite or coated on the surface to sense stress by emitting visible light. This method is applicable to the dynamic visualization of stress distribution in a solid not only in the atmosphere but also in an aqueous environment. A simulation result confirms that such a ML image successfully reflects the stress distribution. A kinetic model for ML of SAO-E is proposed.

Paper Details

Date Published: 3 October 2000
PDF: 6 pages
Proc. SPIE 4220, Advanced Photonic Sensors: Technology and Applications, (3 October 2000); doi: 10.1117/12.401682
Show Author Affiliations
Chao-Nan Xu, Kyushu National Industrial Research Institute (Japan)
Yun Liu, Kyushu National Industrial Research Institute (Japan)
Morito Akiyama, Kyushu National Industrial Research Institute (Japan)
Kazuhiro Nonaka, Kyushu National Industrial Research Institute (Japan)
Xu-Guang Zheng, Saga Univ. (Japan)


Published in SPIE Proceedings Vol. 4220:
Advanced Photonic Sensors: Technology and Applications

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