Results 51 to 60 of about 28,462 (309)

Dielectric behavior of spark plasma sintered BaTi0.7Zr0.3O3 relaxor ferroelectrics

Results in Physics, 2019
In the present work we have studied the transport and dielectric behavior of BaTi0.7Zr0.3O3 (BTZ30) relaxor ferroelectrics prepared by spark plasma sintering.
Mohamad M. Ahmad, Latifah Alismail, Adil Alshoaibi, Abdullah Aljaafari, H. Mahfoz Kotb, Reda Hassanien   +5 more
doaj   +1 more source

Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al₁₂Mg₁₇-B-Si Powder Mixtures

Nanomaterials, 2022
In this work, composite materials were obtained by spark plasma sintering of an Al12Mg17-B-Si powder mixture. The structure, phase composition, and mechanical properties of the obtained composites were studied.
Pavel Nikitin, Ilya Zhukov, Alexey Matveev, Sergei Sokolov, Victor Sachkov, Alexander Vorozhtsov   +5 more
doaj   +1 more source

Surface microstructural changes of spark plasma sintered zirconia after grinding and annealing [PDF]

, 2016
Spark plasma sintered zirconia (3Y-TZP) specimens have been produced of 140 nm 372 nm and 753 nm grain sizes by sintering at 1250 °C, 1450 °C and 1600 °C, respectively.
Akhtar, Farid, Anglada Gomila, Marcos Juan, Antti, Marta-lena, Melk, Latifa, Mouzon, Johanne, Turón Viñas, Miquel   +5 more
core   +2 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Design and Mechanical Properties of ZTA–Niobium Composites with Reduced Graphene Oxide

Ceramics
Niobium–graphene oxide–zirconia-toughened alumina (ZTA) composites were produced by wet mixing and spark plasma sintering. The microstructure and mechanical properties of this novel composite have been studied. The results show that niobium particles are
Sergey Grigoriev, Oleg Yanushevich, Natella Krikheli, Olga Kramar, Yuri Pristinskiy, Nestor Washington Solis Pinargote, Pavel Peretyagin, Anton Smirnov   +7 more
doaj   +1 more source

Nanomaterials Processed by Spark Plasma Sintering [PDF]

Journal of Nanomaterials, 2013
The spark plasma sintering (SPS), a variant of field-assisted sintering (FAST) or pulsed electric current sintering (PECS), is a novel pressure assisted pulsed electric current sintering process, which utilizes ON-OFF DC pulse energizing. Due to the repeated application of an ON-OFF DC pulse voltage and current flow between powder particles, the spark ...
Faming Zhang, Bikramjit Basu, Lianjun Wang, Izabel Fernanda Machado, Claude Estournès   +4 more
openaire   +3 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Spark plasma sintering as a reactive sintering tool for the preparation of surface-tailored Fe–FeAl2O4–Al2O3 nanocomposites [PDF]

, 2009
Al1.86Fe0.14O3 powders were partially or totally reduced in H2. The fully reduced Fe–Al2O3 nanocomposite powder was sintered by spark plasma sintering (SPS) without any reaction taking place.
Chevallier, Geoffroy, Estournès, Claude, Gurt Santanach, Julien, Laurent, Christophe, Peigney, Alain, Weibel, Alicia   +5 more
core   +2 more sources

Spark-Plasma Sintering of Al2O3–Graphene Nanocomposite

Inorganic Materials: Applied Research, 2018
[EN] In the present work, the properties of Al2O3 nanocomposite prepared via spark-plasma sintering and reinforced with 0.5-2 wt % graphene are studied. Samples with different graphene contents are subjected to measurements of density, microhardness, coefficient of friction of composite-ruby, and frictional wear rate of composite. The fracture and wear
Zholnin, Aleksander, Klyatskina, Elizaveta, Grigoryev, E.G., Salvador Moya, Mª Dolores|||0000-0002-4242-478X, Misochenko, A.A., Dobrokhotov, P.L., Isaenkova, M.G., Sinaysky, M.A., Stolyarov, Vladimir V.   +8 more
openaire   +3 more sources

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source