Solid-state reaction mechanism and microwave dielectric properties of CaTiO3–LaAlO3 ceramics

2015 ◽  
Vol 638 ◽  
pp. 443-447 ◽  
Author(s):  
Juan Jiang ◽  
Danhua Fang ◽  
Chao Lu ◽  
Zhanming Dou ◽  
Gan Wang ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric

Improvement of microwave dielectric properties of Ba(Co0.7Zn0.3)1/3Nb2/3O3 ceramics prepared by solid-state reaction

2015 ◽  
Vol 41 (2) ◽  
pp. 1937-1942 ◽  
Author(s):  
Brahim Itaalit ◽  
Mohamed Mouyane ◽  
Jérôme Bernard ◽  
Jean-Michel Reboul ◽  
David Houivet
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric

The Effect CuO Additive on the Microwave Dielectric Properties of Mg(Zr0.05Ti0.95)O3 Ceramics

2011 ◽  
Vol 687 ◽  
pp. 199-203 ◽  
Author(s):  
Ching Fang Tseng
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Solid State ◽  
Liquid Phase ◽  
Solid State Reaction ◽  
Microwave Dielectric Properties ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
Microwave Dielectric ◽  
Second Phases

The microwave dielectric properties of the Mg(Zr0.05Ti0.95)O3ceramics with CuO addition were investigated. All specimens were prepared by solid-state reaction method and sintered at 1270-1420°C for 4 h. When CuO was added, the second phases of MgTi2O5, TiO2and liquid phase were produced. For specimens with 1.5 wt% CuO sintered at 1300°C, the dielectric constant,Q´fand tfvalues are 18.2, 223000 GHz and -2 ppm/°C, respectively.

Influence of Ta substitution for Nb in Zn3Nb2O8 and the impact on the crystal structure and microwave dielectric properties

2016 ◽  
Vol 45 (29) ◽  
pp. 11807-11816 ◽  
Author(s):  
Yonggui Zhao ◽  
Ping Zhang
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Structural Characteristics ◽  
Microwave Dielectric Properties ◽  
Reaction Route ◽  
Microwave Dielectric ◽  
Solid State Reaction Route ◽  
The Impact

Zn3(Nb1−xTax)2O8 (x = 0.02–0.10) ceramics were prepared via a solid-state reaction route and the dependence of their microwave dielectric properties on their structural characteristics were investigated.

Effect of Nd2O3 on the Microwave Dielectric Properties of 0.67CaTiO3-0.33LaAlO3 Ceramics

2017 ◽  
Vol 726 ◽  
pp. 215-219 ◽  
Author(s):  
Zhan Ming Dou ◽  
Gan Wang ◽  
Juan Jiang ◽  
Tian Jin Zhang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Perovskite Structure ◽  
Single Phase ◽  
Microwave Dielectric Properties ◽  
Doping Amount ◽  
Microwave Dielectric

0.67CaTiO3-0.33LaAlO3 ceramics doped with Nd2O3 were prepared using a conventional two-step solid-state reaction, and the effect of Nd2O3 doping on the microwave dielectric properties were studied. A single phase of perovskite structure was confirmed with the Nd2O3 doping. The results showed that the addition of Nd2O3 obviously improved the density and Q×f values of CTLA ceramics. The dielectric constant were almost not affected and the τf values were close to zero with the increase of the doping amount. CTLA ceramics with 0.2 wt% Nd2O3 doping sintered at 1380 °C for 4 h exhibited the optimal microwave dielectric properties of εr = 45.36, Q×f = 37,890 GHz, τf = 7.80 ppm/°C.

Sign in / Sign up

Export Citation Format

Share Document