Results 261 to 270 of about 14,166 (306)

Spark Plasma Sintering of Nano-Crystalline Ceramics

Key Engineering Materials, 2004
Spark Plasma Sintering (SPS) has been successfully applied in the sintering of nanocrystalline BaTiO3 and gamma-Al2O3 in order to reach fully dense nanostructured ceramics at moderate pressure and temperature. BaTiO3 compacts with densities exceeding 97% and gain size of 50 nm have thus been prepared at temperatures not exceeding 850degreesC using a ...
Z Zhao, V Buscaglia, P Bowen, M Nygren
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Spark plasma sintering of ultra refractory compounds

Journal of Materials Science, 2008
Spark plasma sintering experiments were conducted on Zr- and Hf- based borides and carbides with addition of 1, 3, and 9 Vol% MoSi2 as sintering aid. For comparison, as-received ZrC, HfC, ZrB2, HfB2 powders were also sintered. The microstructural features were investigated by means of SEM-EDS technique.
Sciti D, Nygren M
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Spark Plasma Sintering of Alumina

Journal of the American Ceramic Society, 2002
A systematic study of various spark plasma sintering (SPS) parameters, namely temperature, holding time, heating rate, pressure, and pulse sequence, was conducted to investigate their effect on the densification, grain‐growth kinetics, hardness, and fracture toughness of a commercially available submicrometer‐sized Al
Zhijian Shen, Mats Johnsson, Zhe Zhao, Mats Nygren   +3 more
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Characterization of spark plasma sintered Ag nanopowders

Nanotechnology, 2010
The low temperature sintering behaviour of nanocrystalline Ag powder (with an average size of 70 nm) was characterized. Using spark plasma sintering (SPS), the Ag nanopowders can be successfully sintered at low pressure for only 5 min without external heating, and the sintering density increases and porosity decreases significantly with increase in the
Y Q, Fu, C, Shearwood, B, Xu, L G, Yu, K A, Khor   +4 more
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Consolidation by spark plasma sintering of polyimide and polyetheretherketone

Journal of Applied Polymer Science, 2014
ABSTRACTThis article presents two high‐temperature thermoplastic powders which were sintered by spark plasma sintering in order to get homogeneous mechanical properties. Dense polyimide (PI) and polyetheretherketone (PEEK) specimens were obtained at temperatures as low as 320°C for PI and 200°C for PEEK, respectively. Relative densities higher than 99%
Maxime Schwertz, Sébastien Lemonnier, Elodie Barraud, Adele Carradò, Marie‐France Vallat, Michel Nardin   +5 more
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Nanostructured CoSi Obtained by Spark Plasma Sintering

Journal of Electronic Materials, 2015
Cobalt monosilicide is a cheap, environmentally friendly thermoelectric material for medium temperatures (200–700°C). While its power factor is similar to the state-of-the-art thermoelectric materials, its thermal conductivity is too large to reach high ZT values.
Longhin, Marco, Viennois, Romain, Ravot, Didier, Jean Jacques, Robin, Villeroy, Benjamin, Jean-Baptiste, Vaney, Candolfi, Christophe, Lenoir, Bertrand, Papet, Philippe   +8 more
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The effect of sintering parameters on spark plasma sintering of B4C

Ceramics International, 2017
Abstract The effects of sintering temperature, heating rate, and holding time on the density and hardness of the spark plasma sintered B4C were investigated. Experimental results are compared with the predictions from computational thermodynamics.
Mohammad Asadikiya, Cheng Zhang, Christopher Rudolf, Benjamin Boesl, Arvind Agarwal, Yu Zhong   +5 more
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Performances of CaSiO3 ceramic sintered by Spark plasma sintering

Materials Characterization, 2008
Abstract Wollastonite (CaSiO3) ceramics were prepared by a new sintering technology: spark plasma sintering (SPS), using CaSiO3 ultra-fine powders as precursor. The ceramics were sintered at different temperature and different heating rate. The properties of sintered ceramics were discussed detail.
Xianghui Wan, Anmin Hu, Ming Li, Chengkang Chang, Dali Mao   +4 more
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Spark Plasma Sintering of Zirconium Diborides

Journal of the American Ceramic Society, 2008
The densification behavior and grain growth of single‐phase ZrB 2 ceramics by a spark plasma sintering (SPS) process were systematically investigated. The sintering was conducted at temperatures ranging from 1800° and 1950°C in vacuum under a pressure of 50 MPa.
GUO, Shuqi, NISHIMURA, TOSHIYUKI, KAGAWA, YUTAKA, TANAKA, HIDEHIKO   +3 more
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Spark plasma sintering of mullite: Relation between microstructure, properties and spark plasma sintering (SPS) parameters

Ceramics International, 2015
Abstract The spark plasma sintering (SPS) of mullite powder (D50=3.29 μm) was investigated. The SPS parameters such as the dwell temperature, applied external pressure, and dwell time were varied. The sinterability of mullite increases with increase in the dwell temperature, dwell time and applied external pressure.
D. Ghahremani, T. Ebadzadeh, A. Maghsodipour   +2 more
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