FERROELECTRIC CERAMIC/POLYMER COMPOSITES AND THEIR APPLICATIONS

被引：12
|
作者：
Wenger, M. P. [1 ]
Blanas, P. [2 ]
Dias, C. J. [3 ]
Shuford, R. J. [2 ]
Das-Gupta, D. K. [1 ]
机构：
[1] Univ Wales, Sch Elect Engn & Comp Syst, Bangor LL57 1UT, Gwynedd, Wales
[2] USA, Res Lab, Mat Directorate, Watertown, MA 02172 USA
[3] Univ Nova Lisboa, Fac Ciencias & Tecnol, Sec Fis Aplicada, P-2825 Monte De Caparica, Portugal
来源：
FERROELECTRICS | 1996年 / 187卷
关键词：
D O I：
10.1080/00150199608244845
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thin composite films of calcium modified lead titanate (PTCa)/copolymer of vinylidene fluoride-trifluoroethylene P(VDF-TrFE) and PTCa/Epoxy have been produced and their piezoelectric d(33)- and electromechanical coupling coefficient k(t), have been measured. These composite sensors have been used to monitor strain induced in a glass/epoxy laminate produced by cyclic loading. PTCa/P(VDF-TrFE) was embedded in a laminate structure to detect acoustic emission (AE) signals generated on the surface of the laminate by a conventional lead-break technique. The results show that the composite sensor is able to detect AE signals over a wide bandwidth.
引用
收藏
页码：75 / 86
页数：12
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