物理学报2012，Vol.61Issue(19)：464-468,5.
铌酸钾钠基无铅透明陶瓷制备及性能
Preparation and performances of KNN-based lead-free transparent ceramics
摘要
Abstract
Using conventional solid-phase sintering technique combined with a special atmosphere controlling technique, KNN-based lead- free transparent ceramics, xBa(Sc0.5Nb0.5)O3-(1 - x) (K0.5N0.5)NbO3 (xBSN-(1 - x) KNN), are prepared and investigated. Their microstructure, dielectric performance, ferroelectric performance and optical transparency are investigated. The results show that such ceramics are each with a pseudocubic-Perovskite structure, without any other impure phase. Their grain size is comparable to the light wavelength and the grains are highly condensed without evident crystal borders. For x = 0.05, the d33 reaches up to 110 pC/N maximally and the 2Px=25.4 μC/cm2. Moreover, such ceramics are each with an excellent transparency. Their optical transparency reaches about 54%, In the near-infrared wavelength 2500 nm, their optical transparency is near 83%. Such ceramics are a type of environment-friendly lead-free transparent ceramics which may be promising in replacing lead-based transparent ceramics.关键词
铌酸钾钠/无铅透明陶瓷/透过率/晶界Key words
KNN/lead-free transparent ceramics/transmission/crystal borders分类
数理科学引用本文复制引用
王斌科,田晓霞,徐卓,屈绍波,李振荣..铌酸钾钠基无铅透明陶瓷制备及性能[J].物理学报,2012,61(19):464-468,5.基金项目
国家自然科学基金（批准号：10976022,50632030）和陕西省自然科学基金（批准号：2011JM6012）资助的课题. （）
