Effect of increasing lanthanum substitution and the sintering procedures on the properties of SrBi4Ti4O15 ceramics

被引：1

作者：

Rambabu, A. ^{[1
]}

Raju, K. C. James ^{[1
]}

机构：

[1] Univ Hyderabad, Hyderabad 500046, Andhra Pradesh, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2015年 / 38卷 / 05期

关键词：

Microwave sintering; La-substituted SBTi ceramics; mechanical properties; DIELECTRIC-PROPERTIES;

D O I：

10.1007/s12034-015-1023-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lanthanum-substituted SrBi4Ti4O15 (SBTi) ceramic, that is SrBi4-xLaxTi4O15 (SBLTi), samples were calcined by solid-state reaction and densified using the microwave sintering and conventional sintering techniques. Their structural, morphological and mechanical properties were investigated. The microwave sintered samples showed high densities like 95% of the theoretical density with short duration exposures. Compared with SBTi ceramics and other lanthanide-substituted compositions, the incorporation of La3+ results in clear improvement in properties for SBLT (x similar to 0.75) with respect to the values of hardness and Young's modulus of the microwave sintered samples (8.8-12.5 and 160-180 GPa) are higher than that for conventional sintered (8-10 and 135-155 GPa) samples.

引用

页码：1375 / 1380

页数：6

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