Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Crystals 2014, 4(3), 241-261; doi:10.3390/cryst4030241
Review

Rare-Earth Calcium Oxyborate Piezoelectric Crystals ReCa4O(BO3)3: Growth and Piezoelectric Characterizations

1
, 1
, 2,* , 3
 and 1,*
Received: 12 April 2014; in revised form: 15 June 2014 / Accepted: 24 June 2014 / Published: 8 July 2014
(This article belongs to the Special Issue Piezoelectric Crystals)
View Full-Text   |   Download PDF [1180 KB, uploaded 8 July 2014]   |   Browse Figures
Abstract: Rare-earth calcium oxyborate crystals, ReCa4O(BO3)3 (ReCOB, Re = Er, Y, Gd, Sm, Nd, Pr, and La ), are potential piezoelectric materials for ultrahigh temperature sensor applications, due to their high electrical resistivity at elevated temperature, high piezoelectric sensitivity and temperature stability. In this paper, different techniques for ReCOB single-crystal growth are introduced, including the Bridgman and Czochralski pulling methods. Crystal orientations and the relationships between the crystallographic and physical axes of the monoclinic ReCOB crystals are discussed. The procedures for dielectric, elastic, electromechanical and piezoelectric property characterization, taking advantage of the impedance method, are presented. In addition, the maximum piezoelectric coefficients for different piezoelectric vibration modes are explored, and the optimized crystal cuts free of piezoelectric cross-talk are obtained by rotation calculations.
Keywords: ReCOB crystals; crystal growth; dielectric; piezoelectric; sensor ReCOB crystals; crystal growth; dielectric; piezoelectric; sensor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Yu, F.; Duan, X.; Zhang, S.; Lu, Q.; Zhao, X. Rare-Earth Calcium Oxyborate Piezoelectric Crystals ReCa4O(BO3)3: Growth and Piezoelectric Characterizations. Crystals 2014, 4, 241-261.

AMA Style

Yu F, Duan X, Zhang S, Lu Q, Zhao X. Rare-Earth Calcium Oxyborate Piezoelectric Crystals ReCa4O(BO3)3: Growth and Piezoelectric Characterizations. Crystals. 2014; 4(3):241-261.

Chicago/Turabian Style

Yu, Fapeng; Duan, Xiulan; Zhang, Shujun; Lu, Qingming; Zhao, Xian. 2014. "Rare-Earth Calcium Oxyborate Piezoelectric Crystals ReCa4O(BO3)3: Growth and Piezoelectric Characterizations." Crystals 4, no. 3: 241-261.

Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert