QDs-Epoxy Resin for Strain Monitoring

The discovery of the variation of the photoluminescence (PL) intensity of quantum dots (QDs) with mechanical deformation has stimulated the interest of developing QDs-based structures for the measurement and monitoring of stress or strain. In this work, tensile bars with the coating of QDs-epoxy com...

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Bibliographic Details
Published inApplied mechanics and materials Vol. 853; no. Innovation in Testing and Evaluation of Structural Integrity; pp. 508 - 513
Main Authors Zhong, Qi Xin, Luan, Wei Ling, Yin, Shao Feng, Zhao, Zi Ming
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.09.2016
Subjects
Bars
Coating
Cyclic loads
Fatigue (materials)
Monitoring
Polymers
Quantum dots
Strain
Strain Detection
Quantum Dots
Epoxy Resin
Photoluminescence
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Summary:The discovery of the variation of the photoluminescence (PL) intensity of quantum dots (QDs) with mechanical deformation has stimulated the interest of developing QDs-based structures for the measurement and monitoring of stress or strain. In this work, tensile bars with the coating of QDs-epoxy composite are subjected to cyclic loading and unloading tests, and the PL intensity of the coating of QDs-epoxy composite is measured as a function of mechanical strain. There are four types of responses in the PL intensity, depending on the loading condition. Transmission electron microcopy is used to examine the rearrangement of QDs in the coatings before and after the tensile tests for understanding the change in the PL response.
Bibliography:Selected, peer reviewed papers from the 2016 International Symposium on Structural Integrity (ISSI2016), May 26-30, 2016, Tianjin, China
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISBN:9783038357926
3038357928
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.853.508