Results 31 to 40 of about 254,598 (203)

Transport properties of Ba3Ca1+xNb2−xO9−δ composite perovskite oxides

工程科学学报, 2021
ABO3-type perovskite oxides and A3B′B′′2O9-type composite perovskite oxides exhibit proton conduction from 200 ℃ to 1000 ℃. These high-temperature proton conductors have received considerable attention due to their promise as electrolytes in fuel cells ...
Yu-shi DING, Ying LI
doaj   +1 more source

Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper [PDF]

, 2009
Dense micro-cermets made of nickel ferrites and copper micrometric particles were obtained from partial reduction under hydrogenated atmosphere at 350 C of mixed copper nickel ferrites, and sintering in nitrogen at 980 C.
Baco-Carles, Valérie, Gabriel, Armand, Laurent, Véronique, Pasquet, Isabelle, Tailhades, Philippe   +4 more
core   +3 more sources

Features of the crystal structure and influence of long-term exposure in the air atmosphere on electrical transport of HTSC-compounds of system 1-2-3 (review)

Vìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2023
The problem of the influence of a defect ensemble and long-term exposure in an air atmosphere on various mechanisms of electrical transport of HTSC compounds Re1Ba2Cu3O7-δ (Re = Y or other rare earth ion) is considered.
Л.О. Пащенко, Джуньї Ду, А.О. Комісаров, З.Ф. Назиров, К.А. Котвицька, Р.В. Вовк   +5 more
doaj   +1 more source

Degradation of the electrical conductivity of charged domain walls in reduced lithium niobate crystals [PDF]

Modern Electronic Materials, 2022
In this work, the effect of long-term room temperature exposure on the electrical conductivity of the charged domain wall (CDWs) in nonpolar x-cut congruent lithium niobate (LiNbO3, LN) crystals has been studied.
Aleksandr M. Kislyuk, Tatiana S. Ilina, Ilya V. Kubasov, Dmitry A. Kiselev, Aleksandr A. Temirov, Andrei V. Turutin, Andrey S. Shportenko, Mikhail D. Malinkovich, Yuri N. Parkhomenko   +8 more
doaj   +3 more sources

Proton-Ion Conductivity in Hexagonal Wurtzite-Nanostructured ZnO Particles When Exposed to a Reducing Atmosphere

Crystals, 2022
Zinc oxide (ZnO), a direct wide band gap semiconductor (≥3.30 eV), has widespread potential for applications in energy devices and related industries. The initial physical demonstration of ZnO in ceramic fuel cells (CFCs) gave a new view of developing ...
Jinpeng Li, Naveed Mushtaq, Naila Arshad, M. A. K. Yousaf Shah, Muhammad Sultan Irshad, Rong Yan, Senlin Yan, Yuzheng Lu   +7 more
doaj   +1 more source

Physicochemical properties of proton-conducting SmNiO3 epitaxial films

Journal of Materiomics, 2019
Proton conducting SmNiO3 (SNO) thin films were grown on (001) LaAlO3 substrates for systematically investigating the proton transport properties. X-ray Diffraction and Atomic Force Microscopy studies reveal that the as-grown SNO thin films have good ...
Xing Xu, Chen Liu, Jing Ma, Allan J. Jacobson, Cewen Nan, Chonglin Chen   +5 more
doaj   +1 more source

IMPEDANCE SPECTROSCOPY OF POLYCRYSTALLINE TIN DIOXIDE FILMS

Приборы и методы измерений, 2016
The aim of this work is the analysis of the influence of annealing in an inert atmosphere on the electrical properties and structure of non-stoichiometric tin dioxide films by means of impedance spectroscopy method.
D. V. Adamchuck, V. K. Ksenevich, N. I. Gorbachuk, V. I. Shimanskij   +3 more
doaj   +1 more source

RECOGNITION OF GAS-AIR MIXTURES BY A SINGLE GAS SENSOR BASED ON TIN DIOXIDE NANOWHISKERS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
Tin dioxide nanowhiskers were grown by physical vapor deposition and transferred to the contact system by the frozen drop method. The sensors demonstrate gas-sensitivity.
D.A. Timoshenko, I.V. Sinev, V.V. Simakov, N.A. Klychkov   +3 more
doaj   +1 more source

The Variation of Atmospheric Electrical Conductivity as the Function of Altitude

The International Journal of Innovative Technology and Exploring Engineering, 2020
In the present work we will calculate the electrical conductivity of atmosphere. Generally earth’s atmosphere is about 480 km thick but most of it is within about 16 km. At different altitudes the meteorological conditions are different. In this work we will calculate the atmospheric electrical conductivity at different altitude.
Abhishek Kumar Mishra*, Anurag Kumar, Vikas Mishra   +2 more
openaire   +1 more source

On the Electrical Conductivity of the Upper Atmosphere

Journal of geomagnetism and geoelectricity, 1950
The paper deals with the problem of the electrical conductivity supported by the upper atmospheric ionization, to which the diurnal variation of terrestrial magnetism is attributed in the dynamo theory. Number densities of free electrons and ions and their collision frequencies are substantially important for the evaluation of the vertical distribution
openaire   +2 more sources