INVESTIGATION ON STABILITY OF PZT/EPOXY PIEZOCOMPOSITE WITH PRESSURE AND TEMPERATURE |
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Authors: | Likun Wang Yuanyuan Wan Li Li Lei Qin Yi Lu |
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Institution: | 1Beijing Key Laboratory for Sensor;Beijing Information Science and Technology University;Beijing 100101;China;2Computer Science and Technology Department;Shenyang Institute of Chemical Technology;11 Economic Development District;Shenyang 110142;China;The Department of Foreign Languages Teaching;Yunnan University;Kunming 650091;China |
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Abstract: | With the universal test machine and temperature test chamber, the effect of pres-sure and temperature on the behavior of 1-3 and 1-3-2 piezocomposites prepared with PZT/epoxy in our lab has been investigated through electrical impedance and dielectric analysis. The per-mittivity, resonant frequency and dielectric loss of the composites have been measured under vertical stress and temperature, and the variety of the material properties under pressure and temperature could also be obtained. The pressure and temperature stability of the composites have been assessed through experiments. The data of these two types of composites indicated that the stability of 1-3-2 composite with pressure was better than that of 1-3 composite, and two composites have almost the same dielectric stability with temperature. However, 1-3-2 composite showed slower frequency variation than 1-3 composite. |
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Keywords: | piezoelectric composite directional pressure temperature stability |
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