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http://hdl.handle.net/10397/96243
Title: | Low-temperature sintered K0.5Na0.5NbO3-based ceramics for vibratory gyro-sensor applications | Authors: | Wong, MT Kwok, KW |
Issue Date: | Jan-2015 | Source: | International journal of applied ceramic technology, Jan./Feb. 2015, v. 12, no. S1, p. E149-E155 | Abstract: | 0.91K0.47Na0.47Li0.06NbO3-0.09NaSbO3 lead-free piezoelectric ceramics were prepared at 1000°C 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 × 0.6 mm × 4 mm; and good sensitivity (~0.7 mV/dps) was obtained in the range of -360 to 360 dps. | Publisher: | Wiley-Blackwell | Journal: | International journal of applied ceramic technology | ISSN: | 1546-542X | EISSN: | 1744-7402 | DOI: | 10.1111/ijac.12344 | Rights: | ©2014 The American Ceramic Society This is the peer reviewed version of the following article: Wong, M.T. and Kwok, K.W. (2015), Low-Temperature Sintered K0.5Na0.5NbO3-Based Ceramics for Vibratory Gyro-sensor Applications. Int. J. Appl. Ceram. Technol., 12: E149-E155, which has been published in final form at https://doi.org/10.1111/ijac.12344. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
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