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The Newest Research Progress of Knn Based Lead-Free Piezoelectric Ceramics

YAN Bowu

（Huangshi Institue of Technology, Huangshi 435003）

Abstract: In the present paper, the newest research progress of KNN based lead-free piezoelectric ceramics is summarized.Doping, addition of sintering aids, changing of the ratio of K to Na and preparation methods are discussed, together with the development and prospects of KNN-based lead-free piezoelectric ceramics.

Keywords: lead-free piezoelectic ceramics, solidstate solution, peroskite structure


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