Results 11 to 20 of about 311,855 (255)

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

Influence of Cooling Rate on Primary Silicon Size in Hypereutectic Al–Si Alloy Fabricated by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Al–Si alloys are particularly in demand for automotive and electronic applications, thanks to their excellent wear and thermal properties. Nevertheless, when processed by conventional methods with low cooling rates, the coarse primary Si phases are responsible for increasing brittleness and inducing crack propagation.
Layla Shams Tisha, Daniel Knoop, Nils Ellendt, Anastasiya Toenjes   +3 more
wiley   +1 more source

Lightning impulse tests on air-breakdown level in point-plane electrode configuration [PDF]

, 2014
In the past several decades, extensive amount of research work has been done to understand the fundamental characteristics of the electrical breakdown.
Che Mok @ Adnan, Mohd Dasri
core  

Ultra‐Shallow Flat Heat Waves on Low Thermal Conductivity Flexible Polyimide Substrate for Millisecond Thermal Analysis of Materials and Bioelectronic Applications

Advanced Engineering Materials, EarlyView.
An electronic system is presented consisting of a silver thin‐film electrode on a polyimide substrate working both as a heating element and a resistive temperature sensor, generating millisecond heat pulses with very fast heating and cooling rates and a flat peak temperature with a tunable duration.
Bahman K. Boroujeni, Jan Frede, Simon T. Herrmann, Natalie Heinen, Hans Kleemann, Stephanie Pfaender   +5 more
wiley   +1 more source

Thermal Dissipation and Variability in Electrical Breakdown of Carbon Nanotube Devices

, 2010
We study high-field electrical breakdown and heat dissipation from carbon nanotube (CNT) devices on SiO2 substrates. The thermal "footprint" of a CNT caused by van der Waals interactions with the substrate is revealed through molecular dynamics (MD ...
Albert Liao, Eric Pop, F. P. Incropera, Feng Xiong, K. Jimmy Hsia, Rouholla Alizadegan, Sumit Dutta, Zhun-Yong Ong   +7 more
core   +1 more source

Electrical breakdown phenomena of dielectric elastomers [PDF]

SPIE Proceedings, 2017
Silicone elastomers have been heavily investigated as candidates for dielectric elastomers and are as such almost ideal candidates with their inherent softness and compliance but they suffer from low dielectric permittivity. This shortcoming has been sought optimized by many means during recent years.
Yu, Liyun, Mateiu, Ramona Valentina, Skov, Anne Ladegaard   +2 more
openaire   +5 more sources

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

Advanced Engineering Materials, EarlyView.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel, Abdelrahman Elsayed, Lukas Mielewczyk, Katja Eichmann, Julia Grothe, Ulrich Krupp, Avinash Hariharan, Katrin Jahns   +7 more
wiley   +1 more source

Non-Gaussianity of resistance fluctuations near electrical breakdown

, 2003
We study the resistance fluctuation distribution of a thin film near electrical breakdown. The film is modeled as a stationary resistor networkunder biased percolation.
Alfinito, E., Pennetta, C., Reggiani, L., Ruffo, S.   +3 more
core   +1 more source

Electrical breakdown of small gaps in vacuum [PDF]

IEEE Transactions on Dielectrics and Electrical Insulation, 1997
The comparison of the characteristics of an electric arc breakdown in vacuum between two silver or silver-nickel alloy convex electrodes, enabled us to show experimentally that the process initiating discharge in vacuum is the electronic emission at the micrometer scale.
Zouache, Nourédine, Lefort, André
openaire   +4 more sources

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source