Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29796
Title: (Bi1/2Na1/2)TiO3-Ba(Cu1/2W 1/2)O3 Lead-Free Piezoelectric Ceramics
Authors: Wang, X
Chan, HLW 
Choy, CL 
Issue Date: 2003
Publisher: Wiley-Blackwell
Source: Journal of the American Ceramic Society, 2003, v. 86, no. 10, p. 1809-1811 How to cite?
Journal: Journal of the American Ceramic Society 
Abstract: (Bi1/2Na1/2)TiO3 with 0-6 mol% Ba(Cu 1/2W1/2)O3 (BNT-BCW), a new member of the BNT-based group, has been prepared following the conventional mixed oxide route. The compacted bodies were sintered at 1130°C for 2 h to get dense ceramics. The addition of BCW into BNT ceramics facilitated the poling process because of a reduction in leakage current. 0.995BNT·0.005BCW ceramics exhibit a relatively high piezoelectric constant (d33 = 80 × 10 -12 C/N) and a relatively low dielectric loss (tan δ = 1.5%). Increased amount of BCW was found to increase the dielectric constant and loss of BNT-BCW ceramics and to suppress the grain growth. During sintering, some BCW diffuses into the lattice of BNT to form a solid solution and some remains on the grain boundaries.
URI: http://hdl.handle.net/10397/29796
ISSN: 0002-7820
EISSN: 1551-2916
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