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hp-sps at very high pressure (6 gpa) for hard and super hard materials balima f. viraphong o. largeteau a. w-cr and w-ti alloys sintered by field assisted sintering with and without carbon diffusion barrier vilemova m. fast-db a new approach of joining dissimilar titanium alloys in the solid state. pope j. jackson m. wynne b. th 11 00
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Elena COLOMBINIpersonale UniMorepubblicazioni
2018SPS-assisted Synthesis of SICp reinforced high entropy alloys reactivity of SIC and effects of pre-mechanical alloying and post (defects formation) or solid state ones (time demanding). High entropy alloy compositions have been selected so as to comprise at least one ferromagnetic element and one highly reactive couple like Ni-Al
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Unconventional Materials Processing Using Spark Plasma
Spark plasma sintering (SPS) has gained recognition in the last 20 years for its rapid densification of hard-to-sinter conventional and advanced materials including metals ceramics polymers and composites. Herein we describe the unconventional usages of the SPS
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Microstructure and mechanical properties of SiC whisker
Request PDF Microstructure and mechanical properties of SiC whisker reinforced CoCrNi medium entropy alloys The CoCrNi/SiC whisker (SiC w) composite was developed by
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(PDF) Synthesis characterisation and mechanical
ConclusionsPrealloyed Al matrix composites reinforced with nanosized SiC were synthesised using ball milling technique and sintered using the non-conventional method of SPS. The effect of different milling periods and the amount of the reinforcement phases on the resulting phase evolution and morphology was elucidated as well as the effect of
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Combustion assisted synthesis and characterization of Pb1
Combustion assisted synthesis and characterization of Pb1.33Sr0.67-xBaxFe2O5 (0x<=0.67) perovskite-type materials Effects of particle/matrix interfaces on the mechanical properties for SiCp or YAl2p reinforced Mg–Li composites. Zhang Q.Q. / Wu G.Q Evolution in microstructure and corrosion behavior of AlCoCrxFeNi high-entropy alloy
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Ignition Phenomena and Reaction Mechanisms of the Self
The effect of the addition of aluminum on the ignition and self‐propagating high‐temperature synthesis (SHS) reaction between titanium and carbon was experimentally investigated. Although TiC was the
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Elena COLOMBINIpersonale UniMorepubblicazioni
2018SPS-assisted Synthesis of SICp reinforced high entropy alloys reactivity of SIC and effects of pre-mechanical alloying and post (defects formation) or solid state ones (time demanding). High entropy alloy compositions have been selected so as to comprise at least one ferromagnetic element and one highly reactive couple like Ni-Al
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Novel Nanoparticle‐Reinforced Metal Matrix Composites with
Pradyut Kumar Swain Kasinath Das Mohapatra Pratyush Kumar Swain Synthesis and development of Al SiCp nano composites and study of its machining processes Materials Today Proceedings 10.1016/j.matpr.2020.03.714 (2020).
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WEB PROGRAMAIDIC
hp-sps at very high pressure (6 gpa) for hard and super hard materials balima f. viraphong o. largeteau a. w-cr and w-ti alloys sintered by field assisted sintering with and without carbon diffusion barrier vilemova m. fast-db a new approach of joining dissimilar titanium alloys in the solid state. pope j. jackson m. wynne b. th 11 00
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Effect of TiB 2 on the Phase Composition Microstructure
Mar 11 2021 · High entropy alloys (HEAs) attract more and more attention due to their simple structure high strength and hardness good ductility and excellent softening oxidation corrosion and wear resistance properties. Among the known HEA systems the AlCoCrFeNi alloy exhibits complicated microstructure and excellent mechanical properties. In this study the AlCoCrFeNi/TiB2 composites
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SPS-assisted Synthesis of SICp reinforced high entropy
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SPS-assisted Synthesis of SICp reinforced high entropy
In this work a traditional high entropy alloy (FeCoNiCrAl) was reinforced by uniformly distributed reactive silicon carbide (SiC) particles by a powder metallurgy synthetic
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Sheng Guo Chalmers University of TechnologyAcademia.edu
The present work is focused on synthesis and heat treatment on non-equiatomic AlCoCrFeNiTi 0.5 high entropy alloy (HEA) with a composite structure reinforced by TiC nanoparticles. The initial alloy was prepared by mechanical alloying (MA) in a planetary ball mill compacted by spark plasma sintering (SPS) and heat treated at different temperatures.
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CV Prashanth Konda GokuldossETIS
Mechanism of high-pressure torsion-induced shear banding and lamellar thickness saturation in Co–Cr–Fe–Ni–Nb high-entropy composites. Journal of Materials Research 34 (15) 2672−2682. DOI 10.1557/jmr.2019.149.
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Materials Science Forum Vol. 560 Scientific.Net
Abstract A high-entropy alloy (HEA) has been defined by us to have at least five principal elements each of which has an atomic concentration between 5 and 35 . In the exploration on this new alloy field we find that HEAs are quite simple to analyze and control and they might be processed as traditional alloys.
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Unconventional Materials Processing Using Spark Plasma
Spark plasma sintering (SPS) has gained recognition in the last 20 years for its rapid densification of hard-to-sinter conventional and advanced materials including metals ceramics polymers and composites. Herein we describe the unconventional usages of the SPS
Get Price
Al Cu and Zr Addition to High Entropy Alloys The Effect
2 E. Colombini et al. SPS-assisted Synthesis of SICp reinforced high entropy alloys reactivity of SIC and effects of pre-mechanical alloying and post-annealing treatment Powder Metallurgy 61-1 (2018) 64-72. DOI 10.1080/.2017.
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(PDF) Synthesis characterisation and mechanical
ConclusionsPrealloyed Al matrix composites reinforced with nanosized SiC were synthesised using ball milling technique and sintered using the non-conventional method of SPS. The effect of different milling periods and the amount of the reinforcement phases on the resulting phase evolution and morphology was elucidated as well as the effect of
Get PriceSpark Plasma Sintering of Metals and Metal Matrix
Munir and coworkers have critically examined the important features of SPS method and their individual roles in the observed enhancement of the consolidation process and the properties of the resulting materials.A comprehensive review on the electric current-activated/assisted sintering (ECAS) apparatuses and methods was performed by Grasso and coworkers where the progress of ECAS
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Fundamental Aspects of Spark Plasma Sintering I
David Salamon Radek Kalousek Karel Maca Zhijian Shen Rapid Grain Growth in 3Y‐TZP Nanoceramics by Pressure‐Assisted and Pressure‐Less SPS Journal of the American Ceramic Society 10.1111/jace.13837 98 12 () (2015).
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Ceramics Free Full-Text Effect of SiC on
Ultra-high temperature ceramic composites have been widely investigated due to their improved sinterability and superior mechanical properties compared to monolithic ceramics. In this work high-entropy boron-carbide ceramic/SiC composites with different SiC content were synthesized from multicomponent carbides HfC Mo2C TaC TiC B4C and SiC in spark plasma sintering (SPS) from
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Effect of TiB 2 on the Phase Composition Microstructure
Mar 11 2021 · High entropy alloys (HEAs) attract more and more attention due to their simple structure high strength and hardness good ductility and excellent softening oxidation corrosion and wear resistance properties. Among the known HEA systems the AlCoCrFeNi alloy exhibits complicated microstructure and excellent mechanical properties. In this study the AlCoCrFeNi/TiB2 composites
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Powder metallurgy of Al0.1CoCrFeNi high-entropy alloy
Powder metallurgy of Al0.1CoCrFeNi high-entropy alloyVolume 35 Issue 21
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SPS-assisted Synthesis of SICp reinforced high entropy alloys reactivity of SIC and effects of pre-mechanical alloying and post-annealing treatment Lei Wang · Feng Qiu · De-Long Yang · Jingyuan Liu · Fang Chang · Qi-Chuan Jiang · Qi-Chuan Jiang
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Materials Free Full-Text Microstructure Mechanical
NiAl-based composites reinforced by CrMnFeCoNi high-entropy alloy (HEA) particles were fabricated by mechanical alloying (MA) and spark plasma sintering (SPS). The microstructure mechanical and tribological properties of the NiAl-HEA composites were investigated. Microstructural analyses show that after SPS the HEA phase homogenously distributed in the NiAl matrix.
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Lukasz et al. 24 prepared CoCrFeMnNi high entropy alloy matrix composites reinforced with Al 2 O 3 nano-particles. Compared with CoCrFeMnNi matrix the hardness of the composites increases from
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Journal of Advanced Ceramics Paperity
A new class of high-entropy M3B4 borides of the Ta3B4-prototyped orthorhombic structure has been synthesized in the bulk form for the first time. Specimens with compositions of (V0.2Cr0.2Nb0.2Mo0.2Ta0.2)3B4 and (V0.2Cr0.2Nb0.2Ta0.2W0.2)3B4 were fabricated via reactive spark plasma sintering of high-energy-ball-milled elemental boron and metal
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Al Cu and Zr Addition to High Entropy Alloys The Effect
2 E. Colombini et al. SPS-assisted Synthesis of SICp reinforced high entropy alloys reactivity of SIC and effects of pre-mechanical alloying and post-annealing treatment Powder Metallurgy 61-1 (2018) 64-72. DOI 10.1080/.2017.
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