RAINBOW(Reduced And Internally Biased Oxide Wafer)压电陶瓷具有内部应力偏移,兼有还原层和未还原化层,并有特殊的拱形结构.在电场作用下,可以产生很高的轴向位移,能承受比一般压电陶瓷更大的应力载荷,是一种具有广阔应用前景的驱动材料.本文综述了RAINBOW压电陶瓷的力学分析方法、还原机制、微观组织结构、驱动特性,并指出了RAINBOW压电陶瓷的发展趋势.
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