期刊
FERROELECTRICS
卷 455, 期 1, 页码 69-76出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00150193.2013.843955
关键词
Composites; particle size; acoustic properties; piezoelectric properties; BZT
资金
- Thailand Research Fund (TRF) through the Royal Golden Jubilee Ph.D. Program [PHD/0042/2552]
- Thailand Research Fund (TRF)
- Commission on Higher Education (Thailand)
- Chiang Mai University
- INAMM/NSF [0844081]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0844081] Funding Source: National Science Foundation
Lead-free 0-3 Barium zirconate titanate (BZT)-Portland cement (PC) composites, environmentally friendly piezoelectric materials, which are expected to find applications in smart concrete structures due to their good compatibility with the host concrete, are studied. The results indicate that the composites can be tuned to a compatible value to match the requirement of concrete structure. For 425m BZT particle size used for the range tested at the same volume led to optimum piezoelectricity in composites. The electromechanical coupling coefficient was found to be approximate to 17% for 70% BZT composite. Several mathematical models are applied for the calculation of the piezoelectric coefficient of the composites and the experimental results were closest to those calculated from the cube model.
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