Hydrostatic piezoelectric properties of bismuth triborate crystals

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI:10.1109/SPAWDA.2015.7364431

He-wei Wang, Feifei Chen, F. Yu, Shujun Zhang, Xian Zhao

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Abstract

In this report, the dielectric and hydrostatic piezoelectric properties of the monoclinic bismuth triborate crystals (BiB₃O₆, BIBO) were investigated at ambient temperature for potential hydrophone application. The pressure dependence of the hydrostatic charge and voltage coefficients dielectric properties (d_h and g_h), and hydrostatic figure of merit (FOM) d_h×g_h, were also studied. Results indicated that the BIBO crystals possess low dielectric loss being on the order of <;0.1% at room temperature. The hydrostatic piezoelectric coefficient d_h for BIBO crystals was experimentally obtained to be d_h =3.3 pC/N, while the piezoelectric hydrostatic coefficient g_h was obtained to be on the order of g_h =44.4×10^-3 V·m/N. Moreover, the FOM value was found to be on the order of 0.15 pm²/N, comparable to that of PMN-PT single crystals (0.12-0.78 pm²/N). In addition, the pressure coefficient a₁/d_h (1.0×10^-4 ppm/Pa) was calculated and found much lower than the reported PMN-PT single crystals (~0.001 ppm/Pa).

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三硼酸铋晶体的静压压电特性

本文研究了单斜斜三硼酸铋晶体(BiB3O6, BIBO)在室温下的介电和静水压电性能，并对其潜在的水听器应用前景进行了研究。还研究了静压电荷和电压系数、介电性能(dh和gh)以及静压优值(FOM) dh×gh的压力依赖性。结果表明，BIBO晶体具有较低的介电损耗，其介电损耗在h量级，实验得到BIBO晶体的压电静压系数gh为gh =44.4×10-3 V·m/N。FOM值约为0.15 pm2/N，与PMN-PT单晶的FOM值(0.12-0.78 pm2/N)相当。此外，计算了压力系数a1/dh (1.0×10-4 ppm/Pa)，发现其压力系数远低于已有报道的PMN-PT单晶(~0.001 ppm/Pa)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)

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