High dielectric SrGeO3 perovskite prepared by high pressure synthesis

1995 ◽  
Vol 398 ◽  
Author(s):  
Andrzej Grzechnik ◽  
Paul F. McMillan ◽  
William Petuskey
Keyword(s):  
Dielectric Constant ◽  
High Pressure ◽  
Crystal Lattice ◽  
High Dielectric Constant ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
High Dielectric ◽  
Metastable Material

ABSTRACTHigh pressure synthesis of SrGeO3 perovskite and its properties are reported. The metastable material recovered to room pressure shows a high dielectric constant (>100), due to a “stretched” crystal lattice.

High dielectric constant in Al-doped ZnO ceramics using high-pressure treated powders

2016 ◽  
Vol 657 ◽  
pp. 90-94 ◽  
Author(s):  
Xuhai Li ◽  
Xiuxia Cao ◽  
Liang Xu ◽  
Lixin Liu ◽  
Yuan Wang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Pressure ◽  
High Dielectric Constant ◽  
Doped Zno ◽  
High Dielectric ◽  
Zno Ceramics

Effect of La2O3 on the Electrical Properties of WO3-Based Varistor Ceramics

2011 ◽  
Vol 480-481 ◽  
pp. 137-141
Author(s):  
Tian Guo Wang ◽  
Qun Qin ◽  
Wen Jun Zhang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Electrical Properties ◽  
Crystal Lattice ◽  
Breakdown Voltage ◽  
High Dielectric Constant ◽  
Electrical Characteristics ◽  
Electrical Behavior ◽  
High Dielectric

The nonlinear electrical behavior and dielectric properties of WO3-based ceramics with various La2O3 contents have been investigated. Breakdown voltages Eb of WO3 doped with La2O3 are lower than that of undoped WO3, indicating that the dopant can reduce the breakdown voltage. The dielectric constant of doped samples is higher than that of undoped samples, and the high dielectric constant makes them suitable as capacitor-varistor materials. The theory defects in the crystal lattice was introduced to explain the nonlinear electricial behavior of the La2O3-doped WO3 ceramics. In view of these electrical characteristics, the WO3 ceramic doped with La2O3 is a viable candidate for capacitor-varistor functional devices.

Topochemical Synthesis of Perovskite-type CuNb2O6 with Colossal Dielectric Constant

2021 ◽  
Author(s):  
Masayuki Fukuda ◽  
Ikuya Yamada ◽  
Hajime Hojo ◽  
Chihiro Takahashi ◽  
Yuya Yoshida ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Pressure ◽  
Structural Transformation ◽  
High Pressure Synthesis ◽  
Synthesis Techniques ◽  
Post Annealing ◽  
Pressure Synthesis ◽  
Colossal Dielectric Constant ◽  
A Site ◽  
Perovskite Type

A novel A-site deficient quadruple perovskite (Pv) oxide, CuNb2O6, has been successfully obtained by a combination of high-pressure synthesis techniques and topochemical structural transformation. Post-annealing of a high-pressure-synthesized Pv-CuNbO3 above...

Enhanced performance of supercapacitors by constructing a “mini parallel-plate capacitor” in an electrode with high dielectric constant materials

2020 ◽  
Vol 8 (32) ◽  
pp. 16661-16668
Author(s):  
Huayao Tu ◽  
Shouzhi Wang ◽  
Hehe Jiang ◽  
Zhenyan Liang ◽  
Dong Shi ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Carbon Fiber ◽  
Parallel Plate ◽  
Sandwich Structure ◽  
High Dielectric Constant ◽  
Parallel Plate Capacitor ◽  
Plate Capacitor ◽  
Fiber Metal ◽  
High Dielectric ◽  
Mini Plate

The carbon fiber/metal oxide/metal oxynitride layer sandwich structure is constructed in the electrode to form a mini-plate capacitor. High dielectric constant metal oxides act as dielectric to increase their capacitance.

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