Nondestructive 3D Imaging of Microscale Damage inside Polymers-Based on the Discovery of Self-Excited Fluorescence Effect Induced by Electrical Field.
Nondestructive 3D Imaging of Microscale Damage inside Polymers-Based on the Discovery of Self-Excited Fluorescence Effect Induced by Electrical Field.
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DOI：
10.1002/advs.202302262
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发表时间：
2023-09
期刊：
影响因子：
15.1
通讯作者：
Deng, Qin
中科院分区：
文献类型：
--
作者：
Sima, Wenxia;Tang, Xinyu;Sun, Potao;Sun, Zhenkun;Yuan, Tao;Yang, Ming;Zhu, Chun;Shi, Zeyan;Deng, Qin
关键词：
The development of high‐precision, non‐destructive, and three‐dimensional (3D) in situ imaging of micro‐scale damage inside polymers is extremely challenging. Recent reports suggest that 3D imaging technology based on micro‐CT technology causes irreversible damage to materials and is ineffective for many elastomeric materials. In this study, it is discovered that electrical trees inside silicone gel induced by an applied electric field can induce a self‐excited fluorescence effect. Based on this, high‐precision, non‐destructive, and 3D in situ fluorescence imaging of polymer damages is successfully achieved. Compared with the current methods, the fluorescence microscopic imaging method enables slicing of the sample in vivo with high‐precision operation, realizing the precise positioning of the damaged area. This pioneering discovery paves the way for high‐precision, non‐destructive, and 3D in situ imaging of polymer internal damage, which can solve the problem of internal damage imaging in insulating materials and precision instruments. This study reports for the first time the characterization of electrical tree degradation in polymers through the detection of self‐excited fluorescence in the channel area of the tree. Furthermore, this high‐precision, in situ technique is developed without causing further damage to the polymer which is an issue that is present in currently used imaging techniques.
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影响因子：
15
作者：
Hu, J;Chekmenev, EY;Cross, TA
通讯作者：
Cross, TA
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影响因子：
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DOI：
10.1073/pnas.1000156107
发表时间：
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影响因子：
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影响因子：
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通讯作者：
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