Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32441
Title: Low-temperature sintered K0.5Na0.5NbO3-based ceramics for vibratory gyro-sensor applications
Authors: Wong, MT
Kwok, KW 
Issue Date: 2015
Publisher: Blackwell Publishing Ltd
Source: International journal of applied ceramic technology, 2015, v. 12, no. S1, p. E149-E155 How to cite?
Journal: International Journal of Applied Ceramic Technology 
Abstract: 0.91K0.47Na0.47Li0.06NbO3-0.09NaSbO3 lead-free piezoelectric ceramics were prepared at 1000¢XC using a sintering aid comprising of Cu and Ba in a molar ratio of 71.5/28.5. A dense structure with a high density of 4.43 g/cm3 was obtained for the ceramic added with 2.5 wt% of the sintering aid. Probably due to the smaller grains and doping of Cu2+, the piezoelectric coefficient and dielectric loss were reduced to 120 pC/N and 1.0%, respectively. The ceramics were then fabricated into vibratory gyro sensors of dimensions 0.6 mm ¡Ñ 0.6 mm ¡Ñ 4 mm; and good sensitivity (~0.7 mV/dps) was obtained in the range of -360 to 360 dps.
URI: http://hdl.handle.net/10397/32441
ISSN: 1546-542X
DOI: 10.1111/ijac.12344
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