Crystal growth and characterization of thulium calcium oxyborate high-temperature piezoelectric crystals

Shuai Hou, Fapeng Yu, Yanqing Liu, Shujun Zhang, Qingming Lu, Shenglai Wang, Xian Zhao

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

New rare-earth calcium oxyborate crystals TmCa4O(BO3)3 (TmCOB) were grown by using the Czochralski pulling method, and the mechanical and thermal properties were investigated. In addition, the dielectric, elastic and piezoelectric performance was evaluated by impedance measurement, where the piezoelectric charge coefficients were determined to be on the order of d11 = 1.7, d12 = 3.8, d13 = -4.2, d15 = -0.92, d24 = 4.9, d26 = 7.8, d31 = -0.75, d32 = -2.4, d33 = 2.2 and d35 = -5.2 pC N-1. The temperature-dependent electrical resistivity and electro-elastic properties were studied from room temperature to 900°C, where a high electrical resistivity of ∼6 × 107 Ω cm and a low dielectric loss of ∼21% were achieved at 900°C, with high thermal stability of electromechanical coupling factors and piezoelectric coefficients over the temperature range of 20-900°C. All of these properties demonstrate that TmCOB crystals are an attractive candidate for high-temperature sensor fabrications.

Original languageEnglish (US)
Pages (from-to)553-560
Number of pages8
JournalCrystEngComm
Volume17
Issue number3
DOIs
StatePublished - Jan 21 2015

Fingerprint

Thulium
piezoelectric crystals
thulium
Crystallization
Crystal growth
crystal growth
calcium
Calcium
Crystals
electrical resistivity
pulling
impedance measurement
temperature sensors
coefficients
dielectric loss
crystals
Crystal growth from melt
Electromechanical coupling
thermal stability
rare earth elements

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Hou, Shuai ; Yu, Fapeng ; Liu, Yanqing ; Zhang, Shujun ; Lu, Qingming ; Wang, Shenglai ; Zhao, Xian. / Crystal growth and characterization of thulium calcium oxyborate high-temperature piezoelectric crystals. In: CrystEngComm. 2015 ; Vol. 17, No. 3. pp. 553-560.
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Crystal growth and characterization of thulium calcium oxyborate high-temperature piezoelectric crystals. / Hou, Shuai; Yu, Fapeng; Liu, Yanqing; Zhang, Shujun; Lu, Qingming; Wang, Shenglai; Zhao, Xian.

In: CrystEngComm, Vol. 17, No. 3, 21.01.2015, p. 553-560.

Research output: Contribution to journalArticle

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