原料颗粒度对(K,Na)NbO3基陶瓷压电性能的影响Effect of Raw-material Granularity on Piezoelectric Properties of (K,Na)NbO3 Based Ceramics
姚卫增
摘要(Abstract):
原料是制备高质量陶瓷的基础,原料颗粒度和均匀性是制备高品质陶瓷的约束条件之一.采用原料预球磨的方法有效地降低了原料的颗粒度,对比研究了预球磨前后原料颗粒度对混合粉体形貌和陶瓷样品压电性能的影响.结果表明,预球磨处理的原料混合物粉体的颗粒度比未经处理的原料混合物料体的颗粒度更小、分散更均匀,进而将所制备的(K_(0.45)Na_(0.55))_(0.98)Li_(0.02)Nb_(0.76)Ta_(0.18)Sb_(0.06)O_3陶瓷的压电常数d_(33)的最大值从345 pC/N提高到了393 pC/N.
关键词(KeyWords): KNN陶瓷;原料颗粒度;预球磨;压电性能
基金项目(Foundation): 菏泽学院博士基金项目(XY20BS06)
作者(Author): 姚卫增
DOI: 10.16393/j.cnki.37-1436/z.2024.05.012
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