Results 31 to 40 of about 2,258 (200)

Mathematical model predicting the heat and power dissipated in an electro-conductive contact in a hybrid woven fabric [PDF]

, 2020
Electro-conductive (EC) yarns can be woven into a hybrid fabric to enable electrical current to flow through the fabric from one component A to another component B. These hybrid fabrics form the bases of woven e-textiles.
De Mey, Gilbert, Hertleer, Carla, Meul, Jeroen, Odhiambo, Sheilla Atieno, Van Langenhove, Lieva, Vasile, Simona-Ileana   +5 more
core   +2 more sources

Synthesis by Hydrothermal Treatment of ZnO-Based Varistors Doped with Rare Earth Oxides and Their Characterization by Impedance Spectroscopy

Crystals, 2020
ZnO-based ceramic varistors have shown excellent electrical and dielectric properties due to their characteristics microstructures represented by the arrangement of their grains and grain boundaries that allow the absorption and flow of energy when ...
J. Porcayo-Calderon, J.J. Ramos-Hernandez, C.D. Arrieta-Gonzalez, J.G. Chacon-Nava, J.G. Gonzalez-Rodriguez, E. Porcayo-Palafox, M. Sanchez-Carrillo, J.P. Flores-De los Rios, L. Martinez-Gomez   +8 more
doaj   +1 more source

Microstructural Characterization of ZnO Varistors.

Journal of the Japan Society of Powder and Powder Metallurgy, 1995
Two kinds of commercial ZnO system varistors were investigated with relevance to their microstructures. Particularly, face-to-face fracture surfaces were characterized in terms of secondary electron image and backscatterd electron image to clarify the existence of precipitates at the grain-to-grain interface.
Shunji Takeda, Kunihito Koumoto, Hiroaki Yanagida   +2 more
openaire   +2 more sources

Computer Simulation of ZnO Varistors Failures [PDF]

MRS Proceedings, 1997
ABSTRACTA simple thermo-mechanical model is applied to evaluate the influence of the nonuni-formity of ZnO varistor disks used in surge arresters on their energy handling capability. By solving heat transfer equations for a varistor disk with nonuniform electrical properties, we compute the time dependence of the temperature profile and the ...
Bartkowiak, M., Mahan, G. D., Comber, M. G., Alim, M. A.   +3 more
openaire   +1 more source

Non-Linear I-V Characteristics of Double Schottky Barriers and Polycrystalline Semiconductors

, 1992
An attempt to determine theoretically the highly non-linear current-voltage (I-V) characteristics of polycrystalline semiconductors, such as ZnO-based varistors, is made from the electrical properties of individual grain boundaries under dc bias.
Bernasconi, Blatter, Blatter, Clerc, E. Canessa, Eda, Eda, Einzinger, Greuter, Kenkel, Kirkpatrick, Levinson, Levinson, Levinson, Mahan, Mahan, Mahan, McLachlan, Niemeyer, Olsson, Olsson, Olsson, Petermann, Pike, Seager, Takayasu, Tao, Tonkoshkur, Tua, V.L. Nguyen, Werner   +30 more
core   +1 more source

Immittance Spectroscopy of Smart Components and Novel Devices [PDF]

, 1994
AC small-signal immittance spectroscopy is employed as a viable tool to demonstrate electrical characterization, performance improvement, and quality assurance issues of smart materials-based components and novel devices. The variation in the ac response,
Alim, Mohammad Anwarul, Khanam, Sanjida, Seitz, Martin A.   +2 more
core   +3 more sources

Detection mechanism in highly sensitive ZnO nanowires network gas sensors

, 2019
Metal-oxide nanowires are showing a great interest in the domain of gas sensing due to their large response even at a low temperature, enabling low-power gas sensors.
Caicedo, Nohora, Flandre, Denis, Lenoble, Damien, Leturcq, Renaud, Raskin, Jean-Pierre   +4 more
core   +1 more source

A first principles study of wurtzite-structure MnO [PDF]

, 2003
We present results of a density functional theory study of MnO in the wurtzite structure. Our motivation is provided by recent experiments reporting ferromagnetism in Mn-doped wurtzite structure ZnO.
Gopal, Priya, Spaldin, Nicola, Waghmare, Umesh. V.   +2 more
core   +2 more sources

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

High Voltage, EarlyView.
ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li, Heng Zhang, He Gao, Ji Liu, Yoshimichi Ohki, George Chen, Shengtao Li   +6 more
wiley   +1 more source

Electrical degradation of double-Schottky barrier in ZnO varistors

AIP Advances, 2016
Researches on electrical degradation of double-Schottky barrier in ZnO varistors are reviewed, aimed at the constitution of a full picture of universal degradation mechanism within the perspective of defect.
Jinliang He, Chenlu Cheng, Jun Hu
doaj   +1 more source