Structural, optical and dielectric properties of Sr2Ni1−xMgxWO6 (x = 0.00, 0.02, 0.04, and 0.06) double perovskite

2021 ◽  
Vol 9 (38) ◽  
pp. 13439-13446
Author(s):  
Nur Amira Farhana Mohamed Saadon ◽  
Nurliyana Mohd Ali ◽  
Norazila Ibrahim ◽  
Zakiah Mohamed
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Double Perovskite ◽  
Solid State Method ◽  
State Method

Sr2Ni1−xMgxWO6 (0.00 ≤ x ≤ 0.06) polycrystalline samples were prepared using a solid state method and the structural, optical and dielectric properties of the samples were studied using XRD, UV-vis, FTIR and EIS respectively.

scholarly journals Structural, optical and dielectric properties of tellurium-based double perovskite Sr2Ni1−xZnxTeO6

RSC Advances ◽  
2021 ◽  
Vol 11 (50) ◽  
pp. 31631-31640
Author(s):  
Fatasya Izreen Hanim Alias ◽  
Rozilah Rajmi ◽  
Mohd Fauzi Maulud ◽  
Zakiah Mohamed
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Double Perovskite ◽  
Solid State Method ◽  
Conventional Solid State Method ◽  
State Method

In this paper, Sr2Ni1−xZnxTeO6 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) double perovskite compounds were synthesised by the conventional solid-state method, and the structural, optical and dielectric properties were investigated.

Characterization of Antiferromagnetism in Double Perovskites Ba2FeMoO6 Prepared by Solid State Method

2019 ◽  
Vol 891 ◽  
pp. 224-229
Author(s):  
Naphat Albutt ◽  
Vanussanun Aitviriyaphan ◽  
Thanapong Sareein ◽  
Sudarath Suntaropas ◽  
Panakamon Thonglor ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Double Perovskite ◽  
Solid State Reaction Method ◽  
Double Perovskites ◽  
Solid State Method ◽  
Reaction Method ◽  
State Method

The magnetic properties of Ba2FeMoO6 (BFMO) double perovskite are investigated. BFMO samples were prepared by solid state reaction method through compression. Magnetic properties are influenced by electron environments of the Fe3+ and Mo5+ ions within the perovskite structure. BFMO sintered at 800 oC exhibited the largest hysteresis loop at 50 K. In addition, the values of Ms and Mr indicate ferromagnetic behaviour in BFMO ceramics sintered at 800 oC for different times up to 10 hours. Using the Curie-Weiss law fitting to investigate μeff~30μB high spin of Fe and Mo, and negative θ present the antiferromagnetic characteristics of the BFMO sample.

Effect of V2O5–TeO2 Glass Addition on Dielectric Properties of CaCu3Ti4O12 Ceramics Prepared by Solid State Method

2013 ◽  
Vol 66 (4) ◽  
pp. 325-328 ◽  
Author(s):  
M. Masturah ◽  
I. Norezan ◽  
A. K. Yahya ◽  
A. Zakaria ◽  
M. S. Mohd Deni ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Solid State Method ◽  
Glass Addition ◽  
State Method

Microwave Properties in BaO-TiO2 System Added by ZrO2 and WO3

2012 ◽  
Vol 512-515 ◽  
pp. 1155-1159 ◽  
Author(s):  
Xin Ye Yang ◽  
Xiao Hui Wang ◽  
An Ji ◽  
Long Tu Li
Keyword(s):  
Dielectric Properties ◽  
Dielectric Property ◽  
Solid State ◽  
Sintering Temperature ◽  
Microwave Properties ◽  
Solid State Method ◽  
Microwave Dielectric ◽  
Conventional Solid State Method ◽  
Higher Temperature ◽  
State Method

Both BaTi4O9 and Ba2Ti9O20 have the best microwave properties among many compounds in BaO-TiO2 system. The microwave performance of the ceramics in BaO-TiO2 system, which were prepared by conventional solid state method, was investigated in this paper. The study indicates that the (Ti,Zr)/Ba ratio has a great effect on the dielectric properties of the ceramic due to different BaTi4O9/Ba2Ti9O20 ratio. The pure BaTi4O9 ceramic exhibits the most outstanding microwave properties, with εr=35.55 and Q×f=43300GHz. On the contrary, the dielectric property of the pure Ba2Ti9O20 ceramic was not good enough, which should be doped with some additive additions. WO3 was incorporated into the system and the sintering temperature was adjusted to improve the microwave dielectric property. The Q×f was increased to 38000GHz by adding 1.35mol% WO3 due to the formation of a little BaWO4 phase. When sintered at a higher temperature (1380°C), the BaO-TiO2 system ceramic has εr =37.04 and Q×f =44874GHz.

Influence of BaSiO3 Doped on the Properties of BST Capacitor Ceramics

2013 ◽  
Vol 575-576 ◽  
pp. 91-94
Author(s):  
Xin You Huang ◽  
Mu Sheng Huang ◽  
Chun Hua Gao ◽  
Zhi Gang Chen
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Solid State ◽  
Sintering Temperature ◽  
Lattice Parameter ◽  
Solid State Method ◽  
Xrd Study ◽  
Sem Study ◽  
State Method ◽  
Bst Ceramics

The influence of the BaSiO3 dopant on the dielectric properties of (Ba,Sr)TiO3(BST) capacitor ceramics was studied using conventional capacitor ceramics solid state method and XRD , SEM and other analytical methods. The results show that BaSiO3 doping can improve the sintering and microstructure of the capacitor ceramics. SEM study show that BaSiO3 doping can make grain grow uniformly and suppress the grain to grow up, and the structure of ceramics is compact with little pore. XRD study show that there is little SiO2 phase and little influence of BST lattice parameter when BaSiO3 doped amount is 3 mol%.The dielectric properties of BST ceramics doped with 3 mol% BaSiO3 are as follows: dielectric constant (εr) of 1792, which is a little higher than undoped BST ceramics, tanδ of 1%, which is decreased 7.24% compared with undoped BST ceramics, and the sintering temperature decreases 40°C.

Dielectric Properties of Sr-Doped Na0.5Bi0.5TiO3–Ba(1–x)Sr x Ti0.995Zr0.005O3 Ceramics Synthesized by Wet Solid-State Method

2018 ◽  
Vol 57 (1-2) ◽  
pp. 75-81
Author(s):  
Haiyan Cheng ◽  
Aizhen Song ◽  
Miao Liang ◽  
Jiali Li ◽  
Ruijie Duan ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Solid State Method ◽  
State Method

Thermal and dielectric properties of K3Nd(PO4)2 prepared by Pechini and solid state method

2014 ◽  
Vol 585 ◽  
pp. 337-344 ◽  
Author(s):  
D. Piotrowska ◽  
A. Matraszek ◽  
S. Szulia ◽  
M. Kosmowska ◽  
I. Szczygieł
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Solid State Method ◽  
State Method

scholarly journals Influence of CaO and CuO on Barium Zinc Tantalate (BZT) Dielectric Properties

2015 ◽  
Vol 3 (3) ◽  
pp. 30-34
Author(s):  
Hidayani Jaafar ◽  
Sitti Fatimah Mhd Ramle ◽  
Muhammad Azwadi Sulaiman ◽  
Nurul Nadia Aminuddin
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Solid State ◽  
Copper Oxide ◽  
Relative Density ◽  
Calcium Oxide ◽  
Return Loss ◽  
Solid State Method ◽  
State Method ◽  
R Value

The structure and dielectric properties of Barium Zinc Tantalate (BZT) doped by copper oxide (CuO) and calcium oxide (CaO) with a variety of values of mol% doping from 0, 0.1, 0.25, 0.5, 1.0, 1.5 and 2.5 were prepared using a solid state method. A small amount of doping elements increased the relative density. The dielectric constant (?r) value of the BZT significantly improved with the addition of the CuO and CaO for the specimens sintered at 1250°C and it could be explained by the increase of the relative density. The tan ? of the CuO and CaO doped with BZT ceramics is lower than pure BZT ceramics, and decreases as the CuO and CaO content increases. Minimum return loss (dB) shown that the best results are produced when it is doped with 0.25 mol% CaO and 0.5 mol% for CuO sintered at 1250°C.

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