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Proceedings Paper

Lead free BNT ceramics as driving element in traveling wave type ultrasonic motor
Author(s): Zuoba Yu; Ka Cheung Chan; Jifeng Guo; J. Y. Dai; Bo Wang; X. P. Jiang; K. W. Kwok
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Paper Abstract

Ultrasonic motor (USM) as a new type of driving motor has many good features compared with conventional electromagnetic motor. However, due the content of Pb in the driving element piezoelectric ceramics, Pb(Zrx,Ti1-x)O3 (PZT), the application of USM will be restricted from the viewpoint of environmental requirement. In this paper lead free piezoceramics, Mn doped 0.94(Bi0.5Na0.5)TiO3 -0.06BaTiO3(BNT-BT), was used as driving element in ultrasonic motor in replacing PZT. Though the piezoelectric property of BNT-BT ceramic is inferior to that of PZT, the USM with BNT-BT driving element shows promising result and potential to replace PZT ceramic in application of ultrasonic motor.

Paper Details

Date Published: 1 November 2007
PDF: 6 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642325 (1 November 2007); doi: 10.1117/12.779832
Show Author Affiliations
Zuoba Yu, Zhejiang Univ. (China)
Ka Cheung Chan, The Hong Kong Polytechnic Univ. (Hong Kong China)
Jifeng Guo, Zhejiang Univ. (China)
J. Y. Dai, The Hong Kong Polytechnic Univ. (Hong Kong China)
Bo Wang, Zhejiang Univ. (China)
X. P. Jiang, The Hong Kong Polytechnic Univ. (Hong Kong China)
K. W. Kwok, The Hong Kong Polytechnic Univ. (Hong Kong China)


Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering

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