The effect of annealing process on the optical and microwave dielectric properties of transparent MgAl2O4 ceramics by spark plasma sintering

2014 ◽  
Vol 36 (7) ◽  
pp. 1232-1237 ◽  
Author(s):  
Ping Fu ◽  
Yong Xu ◽  
Haohao Shi ◽  
Baohua Zhang ◽  
Xuefeng Ruan ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spark Plasma Sintering ◽  
Microwave Dielectric Properties ◽  
Annealing Process ◽  
Microwave Dielectric ◽  
Plasma Sintering ◽  
Spark Plasma

Optical and Microwave Dielectric Properties of Transparent MgAl2O4 Ceramics

2013 ◽  
Vol 647 ◽  
pp. 758-761
Author(s):  
Ping Fu ◽  
Wen Zhong Lu ◽  
Wen Lei ◽  
Yong Xu ◽  
Xian Long Lu
Keyword(s):  
Grain Size ◽  
Dielectric Properties ◽  
Spark Plasma Sintering ◽  
Microwave Dielectric Properties ◽  
Temperature Range ◽  
Microwave Dielectric ◽  
Plasma Sintering ◽  
Average Grain Size ◽  
Spark Plasma ◽  
Sintering Processes

Transparent polycrystalline MgAl2O4ceramics were fabricated by using spark plasma sintering (SPS) technique at a temperature range from 1275 °C to 1400 °C. The average grain size of the samples fabricated at optimal sintering processes was 345 nm. The in-line transmittance of the sintered ceramics can be as high as 70% at 550 nm and 82% at 2000 nm, respectively. The optimal microwave dielectric properties (εr = 8.38, Q×f = 54000 GHz and τf = -74 ppm/°C) were achieved at 1325°C for 20 min.

Dielectric properties of fine-grained BaTiO3 prepared by spark-plasma-sintering

2004 ◽  
Vol 83 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Baorang Li ◽  
Xiaohui Wang ◽  
Longtu Li ◽  
Hui Zhou ◽  
Xingtao Liu ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spark Plasma Sintering ◽  
Fine Grained ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Influence of Oxygen Substoichiometry on the Dielectric Properties of BaTiO3-δNanoceramics Obtained by Spark Plasma Sintering

2013 ◽  
Vol 10 ◽  
pp. E122-E133 ◽  
Author(s):  
Christophe Voisin ◽  
Sophie Guillemet-Fritsch ◽  
Pascal Dufour ◽  
Christophe Tenailleau ◽  
Hyuksu Han ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma
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