Decomposition behavior and dielectric properties of Ti-doped BiFeO3 ceramics derived from molten salt method

被引：22
|
作者：
Zheng, X. H. [1 ,2 ]
Ma, Z. H. [2 ]
Chen, P. J. [2 ]
Tang, D. P. [2 ]
Ma, N. [2 ]
机构：
[1] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350108, Peoples R China
[2] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2012年 / 23卷 / 08期
关键词：
ROOM-TEMPERATURE; BISMUTH FERRITE; SYSTEM; FERROELECTRICITY;
D O I：
10.1007/s10854-012-0624-x
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The effects of Ti-doping on the decomposition behavior, crystal structure, sintering behavior and dielectric properties have been investigated for the Ti-doped BiFeO3 ceramics derived from molten salt method. XRD reveals the almost pure phase BiFeO3 is synthesized in the Ti-doped BiFeO3 powders. And the particle size of Ti-doped BiFeO3 powers obviously decreases with the increase of Ti content. However, the sintering temperature elevates significantly after Ti-doping. The DC resistivity can enhance by up to four orders of magnitude (from 10(4) to 10(8) Omega m) with only 5 at% Ti doping. But the dielectric constant is suppressed from 10(4) to 10(2), and dielectric loss obviously reduces with a small amount of Ti doping. The variation of dielectric properties has been discussed from the decomposition of BiFeO3 phase. The Ti-doping can effectively suppress the decomposition reaction in Ti-doped BiFeO3 ceramics.
引用
收藏
页码：1533 / 1537
页数：5
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