Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16400
Title: Fabrication of textured BNKLT ceramics by reactive templated grain growth using NBT templates
Authors: Tam, WK
Kwok, KW 
Zeng, JT
Chan, HLW 
Issue Date: 2008
Publisher: Institute of Physics Publishing
Source: Journal of physics. D, Applied physics, 2008, v. 41, no. 4, 045402 How to cite?
Journal: Journal of physics. D, Applied physics 
Abstract: Textured Bi0.5Na0.35K0.1Li0.05 TiO3 (BNKLT) ceramics have been fabricated by a reactive templated grain growth method using plate-like Na0.5 Bi0.5TiO 3 (NBT) templates. The NBT templates were synthesized from bismuth layer-structured ferroelectric Na0.5Bi4.5Ti 4O15 particles by the topochemical method. After reactively sintering at 1085 °C for 12 h, the ceramic textured with 20 wt% NBT templates contained a large fraction of grains aligned with their a-axis normal to the sample surface, giving a Lotgering factor of 0.6. Along with a slight decrease in the depolarization temperature, the piezoelectric properties were improved, giving a piezoelectric coefficient of 300 pC N-1, a planar-mode and a thickness-mode electromechanical coupling coefficients of 0.39 and 0.56, respectively.
URI: http://hdl.handle.net/10397/16400
ISSN: 0022-3727
EISSN: 1361-6463
DOI: 10.1088/0022-3727/41/4/045402
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