Rietveld Analysis and Electrical Properties of BiInO3 Doped KNN-Based Ceramics

Jie Xing; Zhi Tan; Xiaoyang Chen; Laiming Jiang; Wenwu Wang; Xin Deng; Bo Wu; Jiagang Wu; Dingquan Xiao; Jianguo Zhu

doi:10.1021/acs.inorgchem.8b02600

Rietveld Analysis and Electrical Properties of BiInO₃ Doped KNN-Based Ceramics

Inorg Chem. 2019 Jan 7;58(1):428-438. doi: 10.1021/acs.inorgchem.8b02600. Epub 2018 Dec 24.

Authors

Jie Xing¹, Zhi Tan¹, Xiaoyang Chen¹, Laiming Jiang¹, Wenwu Wang¹, Xin Deng¹, Bo Wu^{1

2}, Jiagang Wu¹, Dingquan Xiao¹, Jianguo Zhu¹

Affiliations

¹ College of Materials Science and Engineering , Sichuan University , 610064 Chengdu , China.
² Sichuan Province Key Laboratory of Information Materials and Devices Application , Chengdu University of Information Technology , 610103 , Chengdu , China.

PMID: 30582691
DOI: 10.1021/acs.inorgchem.8b02600

Abstract

Rietveld refinement is used to investigate the crystal structure of prepared (0.965 - x)(K_0.48Na_0.52)NbO₃- xBiInO₃-0.035(Bi_0.5Na_0.5)ZrO₃ (KNN- xBI-BNZ) ceramics. From refined results, the distortion degree of crystal structures in KNN- xBI-BNZ ceramics presents a rising trend with BiInO₃ modification, which is in keeping with the results of diffuseness. The spontaneous polarization ( P_s) is also calculated using refined structural parameters. The submicron domains are observed when x = 0.004, which presents good electrical properties ( d₃₃ = 317 pC/N, T_c = 336 °C) simultaneously. Excellent thermal stability of ceramics modified with BiInO₃ is observed in a broad temperature range.