Results 41 to 50 of about 42,372 (266)

Unveiling exceptional sinterability of ultrafine α-Al2O3 nanopowders

Journal of Materiomics, 2021
Scalable pressureless sintering of nanocrystalline alumina (Al2O3) ceramics is a challenging problem with great scientific and technological interest.
Hongbing Yang, Lu Li, Yuanyuan Li, Bing Shen, Yueming Kang, Libin Zhao, Jiajie Li, Yanhao Dong, Jiangong Li   +8 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Prediction of Physical and Mechanical Properties of Al₂O₃–TiB₂–TiC Composites Using Design of Mixture Experiments

Ceramics
In this study, the design of mixture experiments was used to find empirical models that could predict, for a first approximation, the relative density, flexural strength, Vickers hardness and fracture toughness of sintered composites in order to identify
Nestor Washington Solís Pinargote, Yuri Pristinskiy, Yaroslav Meleshkin, Alexandra Yu. Kurmysheva, Aleksandr Mozhaev, Nikolay Lavreshin, Anton Smirnov   +6 more
doaj   +1 more source

Study of Adaptation Processes in Tribofilms during Friction of Antifriction Aluminum Alloys for Journal Bearings

Metals, 2023
This paper provides results on the tribological behavior of experimental Al–Sn–Pb–Si–Cu–Mg–Zn aluminum alloys and describes the adaptation phenomena that reduce wear intensity during friction with steel.
Pavel Podrabinnik, Iosif Gershman, Alexander Mironov, Ekaterina Kuznetsova, Anna A. Okunkova, Sergey N. Grigoriev   +5 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

SINTERING OF JORDANIAN OIL SHALE UNDER SIMILAR CONDITIONS OF FLUIDIZED BED COMBUSTION SYSTEMS; pp. 54–65 [PDF]

Oil Shale, 2014
Oil shale in Jordan and elsewhere faces many obstacles that hinder its utilisation. Recent developments of the utilization of Jordanian oil shale include the establishment of power generation companies that depend on the technology of atmospheric ...
Awni Al-Otoom, MOHAMMAD AL-HARAHSHEH, MARWAN BATIHA   +2 more
doaj   +1 more source

Synergistic optimization model of sintering ore allocation cost and energy consumption based on PSO–VIKOR

工程科学学报, 2023
As one of the major energy-consuming processes in steel production, sintering accounts for approximately 10% of the total energy consumption of steel production.
Yunfei MA, Qing LI, Jianliang ZHANG, Zhengjian LIU, Feng GUO, Yaozu WANG   +5 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Processing and Characterization of AlN–SiC Composites Obtained by Spark Plasma Sintering

Sci
In this paper, the dependence of the microstructure and properties on Spark Plasma Sintering modes of an AlN-35 β-SiC (wt.%) composite is investigated. It was found that the use of a heating rate of 100 °C/min during the sintering process of the AlN-35 β-
Tatiana N. Smetyukhova, Levko Arbanas, Anton D. Sokolov, Viktoria E. Bazarova, Yuri Pristinskiy, Anton Smirnov, Nestor Washington Solis Pinargote   +6 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source