Structure and microwave dielectric characteristics of Sr(La1−xSmx)2Al2O7 ceramics

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 96229-96236 ◽  
Author(s):  
Zhi Qi Yuan ◽  
Bing Liu ◽  
Xiao Qiang Liu ◽  
Xiang Ming Chen
Keyword(s):  
Phase Composition ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Densification Behavior ◽  
Dielectric Characteristics ◽  
Reaction Method ◽  
Microwave Dielectric

Sr(La1−xSmx)2Al2O7 (0 ≤ x ≤ 1) ceramics were synthesized by a standard solid-state reaction method, and the microwave dielectric characteristics were investigated together with the densification behavior, microstructure and phase composition.

Structural, Raman spectroscopic and microwave dielectric studies on Ni1−x(Zn1/2Zr1/2)xW1−xNbxO4 ceramic compounds with wolframite structure

2015 ◽  
Vol 44 (5) ◽  
pp. 2311-2324 ◽  
Author(s):  
S. D. Ramarao ◽  
V. R. K. Murthy
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Dielectric Studies ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Raman Spectroscopic ◽  
Microwave Dielectric ◽  
Ceramic Compounds

Ni1−x(Zn1/2Zr1/2)xW1−xNbxO4 (x = 0.0–1.0) compositions were synthesized via a conventional solid-state reaction method.

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.

Fabrication and Properties of Zinc Silicate Phosphors through Solid State Reaction

2010 ◽  
Vol 160-162 ◽  
pp. 594-598
Author(s):  
Guo Jian Jiang ◽  
Jia Yue Xu ◽  
Hui Shen ◽  
Yan Zhang ◽  
Lin He Xu ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Emission Peak ◽  
Zinc Silicate ◽  
Red Phosphor ◽  
Reaction Method ◽  
Long Afterglow ◽  
Luminescent Mechanism ◽  
Silicate Phosphors

Zinc silicate-based (Zn2SiO4:Eu3+) long afterglow phosphors were produced by solid state reaction method. The effects of borax and Eu2O3 additive on the properties of fabricated products have been studied. The results show that, there is not much difference in phase compositions within the borax additive amount; however, their SEM morphologies are different. Borax additive can increase the grain size of the product. Some sintering phenomena could be observed in the sample with Eu2O3 addition. The fluorescence spectroscopy results indicate that, the emission peak of the sample with Eu3+ additive located at 612nm, which may be a good candidate for red phosphor applications. The luminescent mechanism of Zn2SiO4:Eu3+ is also discussed.

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