Phase Evolution, Microstructure, Conductivity Behavior and Microwave Dielectric Properties of Li2O-2MgO-Al2O3-6MoO3 Ceramics

2019 ◽  
Vol 48 (9) ◽  
pp. 5672-5676 ◽  
Author(s):  
Shixuan Li ◽  
Huanfu Zhou ◽  
Xiaobin Liu ◽  
Kangguo Wang ◽  
Wendong Sun ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Microwave Dielectric ◽  
Conductivity Behavior

PHASE EVOLUTION AND MICROWAVE DIELECTRIC PROPERTIES OF (Li0.5Bi0.5)(W1-xMox)O4(0.0 ≤ x ≤ 1.0) CERAMICS WITH ULTRA-LOW SINTERING TEMPERATURES

2012 ◽  
Vol 05 (04) ◽  
pp. 1250042 ◽  
Author(s):  
DI ZHOU ◽  
JING GUO ◽  
XI YAO ◽  
LI-XIA PANG ◽  
ZE-MING QI ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
High Performance ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Solid State Reaction Method ◽  
Ceramic Technology ◽  
Microwave Range ◽  
X Ray ◽  
Microwave Dielectric ◽  
C Complex

The ( Li 0.5 Bi 0.5)( W 1-x Mo x) O 4(0.0 ≤ x ≤ 1.0) ceramics were prepared via the solid state reaction method. The sintering temperature decreased almost linearly from 755°C for ( Li 0.5 Bi 0.5) WO 4 to 560°C for ( Li 0.5 Bi 0.5) MoO 4. When the x≤0.3, a wolframite solid solution can be formed. For x = 0.4 and x = 0.6 compositions, both the wolframite and scheelite phases can be formed from the X-ray diffraction analysis, while two different kinds of grains can be revealed from the scanning electron microscopy and energy-dispersive X-ray spectrometer results. High performance of microwave dielectric properties were obtained in the (Li0.5Bi0.5)(W0.6Mo0.4)O4 ceramic sintered at 620°C with a relative permittivity of 31.5, a Qf value of 8500 GHz (at 8.2 GHz), and a temperature coefficient value of +20 ppm/°C. Complex dielectric spectra of pure (Li0.5Bi0.5)WO4 ceramic gained from the infrared spectra were extrapolated down to microwave range, and they were in good agreement with the measured values. The ( Li0.5Bi0.5 )( W 1-x Mo x) O 4(0.0 ≤ x ≤ 1.0) ceramics might be promising for low temperature co-fired ceramic technology.

Phase evolution, structure and microwave dielectric properties of Li2+Mg3SnO6 (x = 0.00–0.12) ceramics

2017 ◽  
Vol 43 (16) ◽  
pp. 13645-13652 ◽  
Author(s):  
Zixuan Fang ◽  
Bin Tang ◽  
Feng Si ◽  
Enzhu Li ◽  
Hongyu Yang ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Microwave Dielectric

Phase evolution and microwave dielectric properties of Bi3SbO7 ceramic

2011 ◽  
Vol 72 (7) ◽  
pp. 882-885 ◽  
Author(s):  
Li-Xia Pang ◽  
Di Zhou ◽  
Hong Wang ◽  
Ying Wu ◽  
Jing Guo ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Microwave Dielectric

Phase evolution and microwave dielectric properties of xBi2/3MoO4–(1 − x)BiVO4 (0.0 ≤ x ≤ 1.0) low temperature firing ceramics

2014 ◽  
Vol 43 (19) ◽  
pp. 7290-7297 ◽  
Author(s):  
Di Zhou ◽  
Wen-Bo Li ◽  
Li-Xia Pang ◽  
Jing Guo ◽  
Ze-Ming Qi ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Phase Boundaries ◽  
High Permittivity ◽  
Temperature Firing ◽  
Microwave Dielectric

High permittivity and Qf value could be obtained near phase boundaries of monoclinic and tetragonal scheelite phases in xBi2/3MoO4–(1 − x)BiVO4 ceramics.

Phase Evolution and Microwave Dielectric Properties of (Bi1−x Fe x )VO4 (x  ≤ 0.40) Ceramics

2014 ◽  
Vol 97 (9) ◽  
pp. 2915-2920 ◽  
Author(s):  
Di Zhou ◽  
He Bin ◽  
Jing Guo ◽  
Li-Xia Pang ◽  
Ze-Ming Qi ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Microwave Dielectric
Sign in / Sign up

Export Citation Format

Share Document