Fabrication of BiFeO3//Bi4Ti3O12 Composites

被引：3
作者：
Osinska, K. [1 ]
Dzik, J. [1 ]
Bernard, H. [1 ]
Wodecka-Dus, B. [1 ]
Lisinska-Czekaj, A. [1 ]
Czekaj, D. [1 ]
机构：
[1] Univ Silesia, Dept Mat Sci, PL-41200 Sosnowiec, Poland
来源：
FERROELECTRICS | 2011年 / 418卷
关键词：
BiFeO3; Bi4Ti3O12; composite; 0-3; connectivity; ELECTRICAL-PROPERTIES;
D O I：
10.1080/00150193.2011.578928
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study a method of fabrication of ceramic-ceramic composites with 0-3 connectivity was developed and BiFeO3//Bi4Ti3O12 (BF//BiT) ceramic composites were fabricated for different concentrations of the ceramic phases. BiFeO3 and Bi4Ti3O12 ceramic powders were first synthesized by the conventional mixed oxide method (MOM). Then BF powder was dispersed in a BiT ceramic powder, and next such composite was pressed and sintered. A free sintering method was utilized. Properties of the BF//BiT composites were studied in terms of their density, crystalline structure (X-ray diffraction) and surface morphology (SEM). It was found, that bismuth ferrite powder crystallized in rhombohedral symmetry and bismuth titanate crystallized in monoclinic phase for c(V) = 2% of BiFeO3 and orthorhombic phase for c(V) = 4% and c(V) = 6% of BiFeO3 component of the composite. Apparent density of the composites varied within the range. = (6.2-6.6) x 10(-3) kg/m(3). Clear change in surface morphology was found for the composites under study.
引用
收藏
页码：60 / 69
页数：10
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