共 50 条
Measurement of effective longitudinal piezoelectric coefficient of thin films by direct piezoelectric effect
被引:0
|作者:
Xu, F
[1
]
Chu, F
[1
]
Shepard, JF
[1
]
Trolier-McKinstry, S
[1
]
机构:
[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA
来源:
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D O I:
暂无
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
This paper presents a new method for the measurement of the longitudinal piezoelectric coefficient of piezoelectric thin films using the direct piezoelectric effect. A uniform uniaxial stress was applied to the piezoelectric thin film by high-pressure gas and the induced charge was collected and measured by a charge integrator. The effective longitudinal piezoelectric coefficient of lead zirconate titanate (PZT) 52/48 thin films made by sol-gel processing was measured by this method. Undoped films typically have d(33) values of similar to 5 pC/N, while poled films have values up to 220 pC/N.
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页码:427 / 432
页数:6
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