Results 261 to 270 of about 28,462 (309)

Carbon Contamination Prevention during Spark Plasma Sintering

ACS Applied Materials & Interfaces, 2023
Carbon contamination from graphite molds during spark plasma sintering (SPS) considerably affects the properties of the sintered materials, especially transparent ceramics. Herein, transparent Y3Al5O12 (YAG) ceramics were prepared via SPS using Mo and Ta foils, separately and in tandem, as protective barriers against carbon contamination.
Michal Sakajio, Gennady E. Shter, Meirav Mann-Lahav, Vadim Beilin, Shai Zamir, Gideon S. Grader   +5 more
openaire   +2 more sources

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
openaire   +1 more source

Spark plasma sintering of BiFeO3

Materials Research Bulletin, 2009
Dense BiFeO3 ceramics were prepared by a novel spark plasma sintering (SPS) technique. The sintering was conducted at temperatures ranging from 675 to 750 8C under 70 MPa pressure. A bulk density value up to 96% of theoretical density was achieved in the process.
R. Mazumder, D. Chakravarty, Dipten Bhattacharya, A. Sen   +3 more
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources

Intergranular alumina–SiC micro-nanocomposites sintered by spark plasma sintering

Materials Chemistry and Physics, 2010
Alumina-5 vol% SiC micro-nanocomposites with almost completely intergranular microstructure were produced by spark plasma sintering (SPS). Before sintering, well dispersed slurries were obtained by ball-milling of powders using an electrosteric dispersant in aqueous media. High density composites could be achieved at lower sintering temperatures by SPS,
Jaafar, Mira, Bonnefont, Guillaume, Fantozzi, Gilbert, Reveron, Helen   +3 more
openaire   +2 more sources

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
openaire   +1 more source

Sintering of Soda‐Lime Glass Microspheres Using Spark Plasma Sintering

Journal of the American Ceramic Society, 2011
Sintering experiments on soda‐lime glass microspheres have been performed using spark plasma sintering in the temperature range 485°C–560°C. Samples with relative densities between 64% and 99.6% have been obtained in about 10 min. For almost fully dense samples, the microstructure exhibits an unusual “interface‐like” aspect for a glass.
Ramond, Laure, Bernard-Granger, Guillaume, Addad, Ahmed, Guizard, Christian   +3 more
openaire   +2 more sources

Spark Plasma Sintering: Process Fundamentals

2019
Spark plasma sintering (SPS) is a rapid technique. Its processing parameters are usually low-voltage and low-pressure acting, using a uniaxial force and pulsed direct current (DC) to carry out high efficiency consolidation of the powder. This technique has been widely applied for various materials processing in the recent years. First, a description of
Cavaliere, Pasquale, Sadeghi, B., Shabani, A.   +2 more
openaire   +2 more sources

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.
Shu‐Qi Guo, Toshiyuki Nishimura, Yutaka Kagawa, Jenn‐Ming Yang   +3 more
openaire   +1 more source