Results 261 to 270 of about 6,642 (291)

Field Assisted Sintering Technology, Part II: Simulation

GAMM-Mitteilungen, 2017
AbstractField‐assisted sintering technology (FAST) implies a multifield problem between electrical, thermal and mechanical fields. Based on a constitutive model proposed in [1], the numerical treatment of the three‐field problem in a monolithic finite element framework is discussed.
Steffen Rothe, Stefan Hartmann
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Electric field-assisted flash sintering of tin dioxide

Journal of the European Ceramic Society, 2014
Abstract SnO 2 green pellets were submitted to ac electric fields at temperatures below 1350 °C. Electric current pulses occurred and a substantial modification was found in the microstructure of the pellets after application of 80 V cm −1 at 900, 1100 and 1300 °C. Similar experiments were carried out in SnO 2 mixed to 2 wt.% MnO 2 .
R. Muccillo, E.N.S. Muccillo
openaire   +1 more source

Electric current effect during the early stages of field‐assisted sintering

Journal of the American Ceramic Society, 2018
Abstract The linear shrinkage during isothermal treatment in the early stages of conventional and field‐assisted sintering of 8YSZ was analyzed. The results reveal that the application of a moderate electric current causes a remarkable acceleration of the self‐diffusion kinetics, resulting in an enhanced ...
Biesuz, Mattia, Rizzi, Davide, Sglavo, Vincenzo M.   +2 more
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Simulation of matrix conductivity in copper–diamond composites sintered by field assisted sintering technology

Computational Materials Science, 2015
Abstract This research investigates thermal conductivity properties of Cu/Zr alloys combined with diamond particles to form a composite that possess superior thermal conductivity. This article describes the use of a theoretical calculation and finite element analysis to compare to previously published experimental observations.
A. Rape, K. Gott, A. Kulkarni, J. Singh
openaire   +1 more source

Synthesis of YCrO3 ceramics through a field-assisted sintering technique

Journal of Materials Science: Materials in Electronics, 2014
The YCrO3 negative temperature coefficient (NTC) ceramics have been successfully fabricated through a field-assisted sintering technique with a low sintering temperature and a short sintering period. The orthorhombic perovskite YCrO3 powder synthesized from a Pechini method was formed at a temperature range of 780–800 °C through a decomposition of ...
Bo Zhang, Qing Zhao, Aimin Chang, Yin Liu, Yiyu Li, Yiquan Wu   +5 more
openaire   +1 more source

Microstructure evolution during field-assisted sintering of zirconia spheres

Scripta Materialia, 2011
The microstructure evolution during microwave-assisted sintering and spark plasma sintering of 50 μm spherical powder is presented. The two microstructures formed are alike, and show unexpected details that cannot be explained just by conventional thermal and pressure effects; one also has to consider “field” effects.
D. Demirskyi, H. Borodianska, S. Grasso, Y. Sakka, O. Vasylkiv   +4 more
openaire   +1 more source

Field Assisted Sintering of Silicate Glass-Containing Alumina

2016
Several studies have been carried out in the last years on Field Assisted Sintering of ceramic materials with the aim of reducing processing time and temperature. Most activities were focused on conductive or semiconductive materials whose sintering behavior resulted very much influenced by the application of an electrical field.
Biesuz, Mattia, Sglavo, Vincenzo Maria
openaire   +1 more source

Application of Field Assisted Sintering for the Recycling of Grinding Steel Swarf

Euro PM2024 Proceedings
The grinding of steel tools to the final shape generates sludge containing metallic swarf considered undesirable for direct recycling. After cleaning and separation of this steel swarf, its morphology often leaves it inappropriate for standard powder metallurgical uses. However, the possibility exists of utilizing field assisted sintering techniques to
Martin Bram, Monica Keszler, Felix Großwendt, Sebastian Weber   +3 more
openaire   +1 more source

Field-Assisted Sintering

2018
Eugene A. Olevsky, Dina V. Dudina
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Joining of SiC using CoFeCrNiCuTi high entropy alloy filler by electric current field assisted sintering

Journal of the European Ceramic Society, 2022
Rujie He, Caiwang Tan, Xiaobing Zhou
exaly