Results 41 to 50 of about 14,166 (306)

Hardness and friction behavior of bulk CoAl2O4 and Co–Al2O3 composite layers formed during Spark Plasma Sintering of CoAl2O4 powders [PDF]

, 2012
Materials made up of a Co–Al2O3 composite coating over a CoAl2O4 core are prepared during Spark Plasma Sintering of CoAl2O4 powders. The Co particles are precipitated because of a combination of high temperature and low O2 partial pressure.
Estournès, Claude, Weibel, Alicia, Laurent, Christophe, Pavia, Anthony, Chevallier, Geoffroy, Peigney, Alain   +5 more
core   +1 more source

Investigation of the effect of pressure, sintering temperature and time on silicon carbide microstructure [PDF]

Processing and Application of Ceramics, 2022
In this research, SiC ceramics were densified via spark plasma sintering (SPS) with 0.5wt.% B4C and 1.5wt.% C additions at temperatures ranging from 1900 to 2000°C for 5-65min under 10-50MPa applied pressure with an intermediate dwell at 1400°C, and the ...
Yasar Zeynep Ayguzer, DeLucca Vincent A., Haber Richard A.   +2 more
doaj   +1 more source

Toughening and hardening in double-walled carbon nanotube/nanostructured magnesia composites [PDF]

, 2010
Dense double-walled carbon nanotube (DWCNT)/nanostructured MgO composites were prepared using an in situ route obviating any milling step for the synthesis of powders and consolidation by spark-plasma-sintering.
Estournès, Claude, Legorreta Garcia, Felipe, Weibel, Alicia, Laurent, Christophe, Peigney, Alain   +4 more
core   +1 more source

Assessment of carbon contamination in MgAl2O4 spinel during spark-plasma-sintering (SPS) processing [PDF]

, 2015
Carbon contamination caused during spark-plasma-sintering (SPS) processing was investigated in the MgAl2O4 spinel by Raman spectroscopy. Although the carbon contamination became remarkable around the sample surfaces directly contacting the carbon paper ...
MORITA, Koji, HIRAGA, Keijiro, KIM, Byung-Nam, YOSHIDA, Hidehiro, SAKKA, Yoshio   +4 more
core   +1 more source

Modeling of Tensile Stress Distribution Considering Anisotropy of Mechanical Properties of Thin-Walled AlSi10Mg Samples Obtained by Selective Laser Melting

Journal of Manufacturing and Materials Processing
The work that is being presented demonstrates that there is a critical point at which the engineering stress–strain diagram’s elastic–plastic region transitions to yield and fracture stresses.
Sergey N. Grigoriev, Nikita Yu. Nikitin, Aleksander Frolov, Petr Shapovalov, Anton Medeltsev, Mikhail Voronov, Roman Khmyrov, Idarmach Idarmachev, Pavel Peretyagin   +8 more
doaj   +1 more source

Spark Plasma Sinering Simulation of Alumina Composite Modified with Carbon Nanotubes

Chemical Engineering Transactions, 2016
Ceramic alumina composites with carbon nanotubes (20 - 50 %vol.) were prepared by spark plasma sintering method. Dependence of the composite strength from porosity and the amount of CNTs was found.
N.A. Fedosova, E.M. Koltsova, E.V. Zharikov, I.I. Mitrichev, A.S. Shaneva   +4 more
doaj   +1 more source

Preparation of binderless SiCw/WC cemented carbides by spark plasma sintering

Fenmo yejin jishu, 2023
SiC whiskers (SiCw)/WC binderless cemented carbides were prepared by spark plasma sintering (SPS), using SiCw as the toughening phase. The effects of sintering temperature and SiCw content on the microstructure and properties of the SiCw/WC cemented ...
WANG Bin, CHEN Ruizhi, LI Jianfeng, CHEN Pengqi, CHENG Jigui   +4 more
doaj   +1 more source

Grain growth stagnation in fully dense nanocrystalline Y2O3 by spark plasma sintering. [PDF]

, 2010
Nanocrystalline (nc) Y2O3 powders with 18nmcrystallite size were sintered using spark plasma sintering (SPS) at 1100 ◦C and 100MPa for different durations. Specimens with 98% density and 106±33nm mean grain size were formed after 20 min.
Estournès, Claude, Chaim, Rachman, Marder, Rachel   +2 more
core   +1 more source

Mechanical Performance and Tribological Behavior of WC-ZrO₂ Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering

Sci
This paper presents research on the effects of the addition of various contents of graphene oxide and sintering temperature on the mechanical, tribological, and electrical characteristics of WC-ZrO2 composites.
Anton Smirnov, Yuri Pristinskiy, Nestor Washington Solis Pinargote, Yaroslav Meleshkin, Pavel Podrabinnik, Marina Volosova, Sergey Grigoriev   +6 more
doaj   +1 more source

Sintering and densification of nanocrystalline ceramic oxide powders: a review [PDF]

, 2008
Observation of the unconventional properties and material behaviour expected in the nanometre grain size range necessitates the fabrication of fully dense bulk nanostructured ceramics.
Levin, M., Estournès, Claude, Shlayer, Amit, Chaim, Rachman   +3 more
core   +1 more source