Electrical and Mechanical Properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 (BZT-BCT) Lead Free Ferroelectric Ceramics Reinforced with Nano-sized Al2O3

被引：10

作者：

Adhikari, P. ^{[1
]}

Mazumder, Ranabrata ^{[1
]}

Sahoo, Ganesh K. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Ceram Engn, Rourkela 769008, Odisha, India

来源：

FERROELECTRICS | 2016年 / 490卷 / 01期

关键词：

Lead free piezoelectric ceramics; BZT-BCT; sintering temperature; piezoelectric constant; flexural strength; PIEZOELECTRIC PROPERTIES; FABRICATION; NANOCOMPOSITES; BEHAVIOR; GROWTH;

D O I：

10.1080/00150193.2015.1072013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al2O3 nano-oxides (0-2.0 vol%) added 0.5Ba(Zr0.2Ti0.8)O-3-0.5(Ba0.7Ca0.3)TiO3(BZT- 0.5BCT) ceramics have been prepared by the conventional solid-state reaction method. The effects of Al2O3 nano-oxides on the phase formation, densification, dielectric, piezoelectric and mechanical properties (flexural strength, hardness) of the BZT-0.5BCT ceramics have been studied systematically. The synthesized powder could be densified to 96% of relative density at a temperature of 1350 degrees C. It was observed that the addition of Al2O3 up to 1 vol % could maintain the permittivity (E-r) at 3600 with low tan value of about 0.02 and d(33) of 350pC/N. BZT-0.5BCT/Al2O3 ceramics possess good mechanical properties viz. flexural strength of 92 MPa compared to pure BZT-BCT (74 MPa) ceramics.

引用

页码：60 / 69

页数：10

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