کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
731005 893018 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of elastic constants of limited-size piezoelectric ceramic sample by ultrasonic method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Measurement of elastic constants of limited-size piezoelectric ceramic sample by ultrasonic method
چکیده انگلیسی

Measurement of material elastic constants for limited-size samples by ultrasonic method is described and validated. Based on acoustic microscope technology, the material elastic constants are determined by longitudinal wave and leak surface wave velocities simultaneously measured by developed ultrasonic system with a line-focus PVDF transducer. In this paper, the elastic constants of limited-size Cr2O3 doping on 0.2 PZN–0.8 PZT piezoelectric ceramic wafer sample are determined and the measurement errors are analyzed. The experimental results show this ultrasonic system can be used for measurement of material elastic constants for limited-size samples with high measurement precision, and the relative errors for Poisson’s ratio and Young’s module measurements are, respectively, less than 1% and 3%. It can satisfy the requirement of engineering and science research. Furthermore, it is suitable to measure elastic constants of both isotropic and anisotropic materials by ultrasonic method with help of developed ultrasonic system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 42, Issue 8, October 2009, Pages 1214–1219
نویسندگان
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