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Effect of V2O5 addition on sintering behavior and electrical properties of lead-free (Li0.06Na0.47K0.47)NbO3 ceramics

CHAO WANG1,* , JING CHEN1, LI SHEN1, JIAMING RUI1, YAN LIU1, MANKANG ZHU2, YUDONG HOU2

Affiliation

  1. Logistics School, Beijing Wuzi University, Beijing 10114 9, P. R. China
  2. Key Laboratory of Advanced Functional Materials of China Education Ministry, Beijing University of Technology, Beijing 100124, P. R. China

Abstract

(Li0.06Na0.47K0.47)NbO3 (LNKN) ceramics with 0-2 mol% V2O5 has been prepared following the conventional solid state sintering method without cold-isostatic pressing (CIP) process. The effects of V2O5 addition on the sinterability and electrical properties of the LNKN ceramics were examined. Solid solution limit of V2O5 in LNKN is thought to be around 1 mol%. 1 mol% V2O5 addition is effective in decreasing the sinter temperature and increasing the density of LNKN to 95.3% of the theoretical density of LNKN ceramic (4.47 g/cm3), while the optimized electrical properties, such as εr=493, tanδ=0.014, d33=207 pC/N and kp=0.43, are obtained..

Keywords

Lead-free piezoelectric ceramics, LNKN, Sinterability, Electrical properties.

Citation

CHAO WANG, JING CHEN, LI SHEN, JIAMING RUI, YAN LIU, MANKANG ZHU, YUDONG HOU, Effect of V2O5 addition on sintering behavior and electrical properties of lead-free (Li0.06Na0.47K0.47)NbO3 ceramics, Optoelectronics and Advanced Materials - Rapid Communications, 10, 9-10, September-October 2016, pp.761-764 (2016).

Submitted at: Jan. 27, 2015

Accepted at: Sept. 29, 2016