硅酸盐通报2018，Vol.37Issue(6)：1825-1828,4.
(K,Na) (Nb,Ta,Sb)O3粉体制备及陶瓷介电性能研究
Powders Preparation and Dielectric Properties of (K,Na) (Nb,Ta,Sb) O3 Ceramics
摘要
Abstract
Sb/Ta co-doped lead-free K0.5Na0.5Nb0.7TaxSb0.3-xO3(abbreviated KNNSTx, x＝0.06, 0.09, 0.12, 0.15, 0.18, 0.21, 0.24) were synthesized using the hydrothermal method.The influence of Ta, Sb content on phase、morphology of powders were systematically studied.The results of microstructure, dielectric properties of sintered KNNSTx ceramics from the obtained powders show that: the KNNSTx ceramics exhibit pure perovskite structure; the partical size become larger as Ta content increases, when x＝0.09, 0.12 the fine grains fill the gaps between large grains, make enhancing ceramic density; The dielectric constant first decrease as Ta content increases from x＝0.06 to 0.12 and then increase with from x＝0.15 to 0.24, and the cure temperature is all at about 350 ℃, x＝0.09, 0.12 both have lower dielectric loss.关键词
(K,Na)(Nb,Ta,Sb)O3/微观结构/介电性能Key words
(K,Na)(Nb,Ta,Sb)O3/microstructure/dielectric property分类
化学化工引用本文复制引用
周媛,李玉祥,蔡艳芝..(K,Na) (Nb,Ta,Sb)O3粉体制备及陶瓷介电性能研究[J].硅酸盐通报,2018,37(6):1825-1828,4.基金项目
国家自然科学基金(51302206) （51302206）
钢铁工业环境保护国家重点实验室开放基金课题(YZC2017Ky02) （YZC2017Ky02）
