Temperature stable K0.5(Nd1-xBix)0.5MoO4 microwave dielectrics ceramics with ultra-low sintering temperature

被引：35
|
作者：
Pang, Li-Xia [1 ,2 ]
Zhou, Di [2 ,3 ,4 ]
Wang, Da-Wei [2 ]
Zhao, Jin-Xiong [5 ]
Liu, Wei-Guo [1 ]
Yue, Zhen-Xing [6 ]
Reaney, Ian M. [2 ]
机构：
[1] Xian Technol Univ, Microoptoelect Syst Labs, Xian, Shaanxi, Peoples R China
[2] Univ Sheffield, Mat Sci & Engn, Sheffield, S Yorkshire, England
[3] Xi An Jiao Tong Univ, Minist Educ, Elect Mat Res Lab, Key Lab, Xian, Shaanxi, Peoples R China
[4] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian, Shaanxi, Peoples R China
[5] State Grid Gansu Elect Power Res Inst, Lanzhou, Gansu, Peoples R China
[6] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2018年 / 101卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
electroceramics; LTCC; microwaves; PHASE EVOLUTION; ND; SYSTEM; CE; BI; LN;
D O I：
10.1111/jace.15388
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
K-0.5(Nd1-xBix)(0.5)MoO4 (0.2x0.7) ceramics were prepared via the solid-state reaction method. All ceramics densified below 720 degrees C with a uniform microstructure. As x increased from 0.2 to 0.7, relative permittivity ((r)) increased from 13.6 to 26.2 commensurate with an increase in temperature coefficient of resonant frequency (TCF) from - 31ppm/degrees C to + 60ppm/degrees C and a decrease in Qf value (Q=quality factor; f=resonant frequency) from 23400 to 8620GHz. Optimum TCF was obtained for x=0.3 (-15ppm/degrees C) and 0.4 (+4ppm/degrees C) sintered at 660 and 620 degrees C with (r) similar to 15.4, Q(f) similar to 19650GHz, and (r) similar to 17.3, Q(f) similar to 13050GHz, respectively. Ceramics in this novel solid solution are a candidate for ultra low temperature co-fired ceramic (ULTCC) technology.
引用
收藏
页码：1806 / 1810
页数：5
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