Results 31 to 40 of about 28,462 (309)

PREPARATION OF TiAl15Si15 ALLOY BY HIGH PRESSURE SPARK PLASMA SINTERING

open access: yesActa Metallurgica Slovaca, 2018
This work deals with preparation of intermetallic alloy TiAl15Si15 (wt. %) by powder metallurgy using Spark Plasma Sintering method. Ti-Al-Si alloys are known as materials with low density, relatively good mechanical properties in comparison with their ...
Anna Knaislová   +4 more
doaj   +1 more source

Alumina-NbC composites fabricated by spark plasma sintering

open access: yesRevista Principia, 2021
The incorporation of niobium carbide in alumina-based composites has been shown to improve the properties of composite material. The main disadvantage to get a dense composite material is the necessary high sintering temperature.
Wilson Henrique Acchar   +2 more
doaj   +1 more source

Oxidation and erosion behaviour of SiC-HfC multilayered composite [PDF]

open access: yesProcessing and Application of Ceramics, 2014
The fabrication of SiC-HfC ceramic composite via self-propagating high-temperature synthesis and simultaneous consolidation was investigated. Dense composite consisting of alternating layers of SiC and HfC was obtained by spark plasma sintering of stack ...
Branko Matović   +6 more
doaj   +1 more source

Transparent Alumina/Ceria Nanocomposites By Spark Plasma Sintering [PDF]

open access: yesAdvanced Engineering Materials, 2010
AbstractThe influence of oxides (such as MgO, TiO2, CaO, etc.) on the transparency of polycrystalline alumina compacts are widely studied in the literature. In this work, a completely different approach is developed, consisting of precipitating 0.5 wt.‐% CeO2 nanoparticles (< 5 nm) on the surface of the starting alumina nanopowder (d50 approximately
Álvarez-Clemares, I.   +7 more
openaire   +3 more sources

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

open access: yesProcessing 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   +2 more
doaj   +1 more source

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

open access: yes, 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.
Chevallier, Geoffroy   +5 more
core   +3 more sources

Densification and polymorphic transition of multiphase Y2O3 nanoparticles during spark plasma sintering [PDF]

open access: yes, 2011
Multiphase (MP) monoclinic and cubic Y2O3 nanoparticles, 40 nm in diameter, were densified by spark plasma sintering for 5–15 min and100 MPa at 1000 °C, 1100 °C, and 1500 °C. Densification started with pressure increase at room temperature. Densification
Chaim, Rachman   +3 more
core   +4 more sources

Effect of sintering temperature on properties of transparent YSZ-ceramics prepared by spark plasma sintering [PDF]

open access: yes, 2018
Transparent yttria-stabilized zirconia (YSZ) ceramics were sintered with the spark plasma sintering (SPS) method at different temperatures. The influence of sintering temperature (1200-1400°С) on the ceramics microstructure and mechanical properties was ...
Алишин, Т. Р.   +1 more
core   +2 more sources

Reactivity and microstructure evolution of a CoNiCrAlY/Talc cermet prepared by spark plasma sintering [PDF]

open access: yes, 2010
A mixture of CoNiCrAlY and talc powders is considered as a new candidate composition for abradable seal coating applications. Dense specimen having the composition of 1:20 weight ratio of talc with respect to CoNiCrAlY was prepared using the Spark Plasma
Estournès, Claude   +3 more
core   +3 more sources

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

open access: yesJournal 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   +8 more
doaj   +1 more source

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