Structural, optical and microwave dielectric properties of Sr1−xCaxWO4 ceramics prepared by the solid state reaction route

2013 ◽  
Vol 39 (8) ◽  
pp. 9627-9635 ◽  
Author(s):  
Nidhi Khobragade ◽  
Ela Sinha ◽  
S.K. Rout ◽  
Manoranjan Kar
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Microwave Dielectric Properties ◽  
Reaction Route ◽  
Microwave Dielectric ◽  
Solid State Reaction Route

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.

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

Preparation and Dielectric Properties of Sm3+-Substituted SrBi8Ti7O27 Based Microwave Ceramics

2007 ◽  
Vol 280-283 ◽  
pp. 95-98
Author(s):  
Yan Xiang Wang ◽  
C. Fang ◽  
Min Tang ◽  
Hong Qiu ◽  
Zhao Xian Xiong
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
High Dielectric Constant ◽  
Microwave Ceramics ◽  
Reaction Route ◽  
Solid State Reaction Route ◽  
Dta And Tg ◽  
High Dielectric

Sr(Bi1-xSmx)8Ti7O27 ceramics were prepared by Sm2O3-substitution for Bi2O3 through solid-state reaction route. The dielectric properties of the sintered bodies such as er, Q and tf were investigated. The ceramics were characterized by SEM, XRD, DTA and TG, which behaved high dielectric constant of 128 ~154 at the frequency of 10 GHz.

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.

Novel low temperature sintered Li4Ti5O12 microwave dielectric ceramics with MoO2 addition

2016 ◽  
Vol 30 (23) ◽  
pp. 1650287
Author(s):  
Cheng Liu ◽  
Huaiwu Zhang ◽  
Hua Su ◽  
Lichuan Jin ◽  
Jie Li ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Crystal Morphology ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric Ceramics ◽  
Reaction Route ◽  
Microwave Dielectric ◽  
Suitable Amount ◽  
Solid State Reaction Route ◽  
Dielectric Ceramics ◽  
Pure Phases

Li4Ti5O[Formula: see text] ceramics with different amount of MoO2 addition were densified at 850[Formula: see text]C via a solid-state reaction route. Pure phases and dense crystal morphology were obtained. Our experimental results indicated that the [Formula: see text] value of the Li4Ti5O[Formula: see text] ceramic can be adjusted to near zero via adopting suitable amount of MoO2 addition. Among all the modified Li4Ti5O[Formula: see text] specimens, the sample with 4 wt.% of MoO2 addition (marked as LM4 in this paper) possessed good microwave dielectric properties: [Formula: see text], [Formula: see text] GHz (7.99 GHz), [Formula: see text] ppm/[Formula: see text]C. It is suggested that the MoO2 modified Li4Ti5O[Formula: see text] ceramics are suitable candidates for LTCC applications in microwave devices.

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