Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14689
Title: Structure, dielectric and piezoelectric properties of Ba 0.90Ca0.10Ti1-xSnxO3 lead-free ceramics
Authors: Lin, D
Kwok, KW 
Chan, HLW 
Keywords: BaTiO3-based
Dielectric property
Piezoelectricity
Sn-substitution
Issue Date: 2014
Publisher: Pergamon Press
Source: Ceramics international, 2014, v. 40, no. 5, p. 6841-6846 How to cite?
Journal: Ceramics international 
Abstract: Lead-free piezoelectric ceramics Ba0.90Ca0.10Ti 1-xSnxO3 have been prepared by a conventional ceramic fabrication technique and the effects of Sn4+ on the structure, dielectric and piezoelectric properties of the ceramics have been investigated. All the ceramics exhibit a pure perovskite structure. After the substitution of Sn4+, the crystal structure of ceramics is transformed gradually from a tetragonal to an orthorhombic phase, and becomes a pseudo-cubic phase at x≥0.14. The substitution also decreases the Curie temperature greatly from 138 C at x=0 to 33 C at x=0.12, and shifts the orthorhombic-tetragonal phase transition to higher temperatures. Coexistence of the orthorhombic and tetragonal phases is formed in the ceramic at x=0.10, leading to significant improvements in the piezoelectric properties: d 33=521 pC/N and kp=45.5%. Our results also reveal that the ceramics sintered at higher temperatures contain larger grains, and thus exhibit more noticeable tetragonal-orthorhombic phase transition and enhanced ferroelectric and piezoelectric properties.
URI: http://hdl.handle.net/10397/14689
ISSN: 0272-8842
EISSN: 1873-3956
DOI: 10.1016/j.ceramint.2013.11.147
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

11
Last Week
0
Last month
0
Citations as of Jun 12, 2018

WEB OF SCIENCETM
Citations

9
Last Week
0
Last month
0
Citations as of Jun 19, 2018

Page view(s)

63
Last Week
0
Last month
Citations as of Jun 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.