Powders-solid state reaction;
Dielectric properties;
Microwave ceramics;
PEROVSKITES;
OXIDES;
D O I:
10.1016/j.ceramint.2012.11.081
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:
Li2Ti1-x(Zn1/3Nb2/3)(x)O-3 (0 <= x <= 0.5) ceramics were prepared by a solid state ceramic route, and the phase purity, microstructure, and microwave dielectric properties were investigated. The XRD results suggest the formation of solid solutions for all studied compositions (0 <= x <= 5). The dielectric properties are strongly dependent on the compositions, the densifications and the microstructures of the samples. The Q x f value increases with x up to x=0.2 and then decreases with the further increase of x. The best microwave dielectric properties of epsilon(r)=20.5, Q x f=75,257 GHz, and tau(f)=15.4 ppm/degrees C could be obtained when x=0.2. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
机构:
Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Zhao, F
Yue, ZX
论文数: 0引用数: 0
h-index: 0
机构:
Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Yue, ZX
Zhang, YC
论文数: 0引用数: 0
h-index: 0
机构:
Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Zhang, YC
Gui, ZL
论文数: 0引用数: 0
h-index: 0
机构:
Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Gui, ZL
Li, LT
论文数: 0引用数: 0
h-index: 0
机构:
Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China