کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1789153 1023494 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electromechanical properties of 2-2 cement based piezoelectric composite
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electromechanical properties of 2-2 cement based piezoelectric composite
چکیده انگلیسی

A 2-2 type cement based piezoelectric composites were fabricated by dice-and-fill technique. The influences of lead magnesium niobate-lead zirconate-lead titanate (PMN) ceramic volume fraction on the electromechanical properties of the composite were investigated. The results indicate that the planar electromechanical coupling factor Kp of the composite is hardly influenced by the PMN volume fraction, which fluctuates between 35% and 37%, while both the thickness electromechanical coupling factor Kt and the mechanical quality factor Qm exhibit the trend of increase. When PMN volume fraction is 69.2%, Kt could reach to 49.8%, which is larger than that of the PMN ceramic (Kt = 46%).When PMN volume fraction is 41.7%, Qm is 4.5, which is also much less than that of the PMN ceramic (Qm = 70). This means that the composite has wider frequency band and higher sensitivity to be used as transducers. With the increase of PMN volume fraction, the acoustic impedance of the composite also exhibits the trend of increase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 9, Issue 4, July 2009, Pages 816–819
نویسندگان
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