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Showing 1 to 11 of 11 for “"high-energy milling"”.
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Microstructural And Mechanical Characterization Of Al-al2o3 Nanocomposites Synthesized By High-energy Milling
… synthesized from blended component powders by a high-energy milling technique. A uniform distribution of the Al2O3 reinforcement in the Al matrix was successfully obtained after milling the powders for a period of 20 h with a ball-to-powder weight ratio of 10:1 in a SPEX mill. The uniform …
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Electronic properties and microstructure of nanoparticulate silicon systems for diode applications
… be shown, that silicon nanoparticles produced by high energy milling can be used to replace the pigment in water-based graphic inks, which on curing have unique semiconducting properties, arising from the transport of charge through a percolation network of crystalline silicon nanoparticles. In …
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The milling of tin bronze with a Cu-24.6wt%Sn composition
The effects of high energy milling on tin bronze with the composition Cu-24.6wtSn have been examined using hardness testing, optical microscopy, scanning electron microscopy, transmission electron microscopy and x-ray diffraction. High energy milling has caused mechanical alloying of an elemental …
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Characterisation of silicon nanoparticles produced by mechanical attrition using scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoemission spectroscopy
… a top-down process of mechanical attrition by high energy milling.
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Hall effect in printed Nanoparticulate Silicon Networks
… were successfully synthesised and characterised. High energy milling has been proven to yield uncontaminated powder of median particle size 150 nm satisfying a lognormal distribution. Single crystalline P- and N-type silicon wafers, and metallurgical grade silicon were used as starting materials. …
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Friction Consolidation of Oxide Dispersion Strengthened Incoloy ® Alloy Ma956 Powder
… large chromium and aluminum concentrations and high mechanical strength and creep resistance at elevated temperatures thanks to oxide dispersion strengthening.</p> <p>The conventional processing route utilized to obtain this alloy involves two main multistep stages. The first (or front end) …
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Cryomilling and Spark Plasma Sintering of 2024 Aluminium Alloy
… by a low specific weight, which make them highly interesting for structural applications. Mechanical properties are lower than those of steels, so the possibility to obtain an increase by means of the structural refining (either nano- or ultra-fine grained structure) would extend their …
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Manufacture and synthesis of a dark micro magnetic flake powder for forensic application
… though, flake powders ,of aluminium, brass and highly reflective magnetic iron flake are already in use in crime scenes , it is highly desirable to develop a suitable darker variety of magnetic flake powder for print development on light background surfaces. In order to achieve rapid production …
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Consolidation of WC-Co nanocomposites synthesised by mechanical alloying
The influence of mechanical alloying (MA) milling time, temperature, sintering method and microstructure on the mechanical properties of a tungsten carbide-cobalt (WC-Co) hardmetal, based on 10wt% Co, has been established. The effects of high-energy milling for 30, 60, 180 and 300 min and the …
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Effects of high energy mechanical milling on the kinetics of solid state reactions
The effects of high energy mechanical milling on the kinetics of solid state reactions in two binary metallic systems, Al-Ni and Cu-Al, and two metal-oxide systems, Al-TiO₂ and Cu(Al)-CuO, have been investigated by using X-ray diffractometry (XRD), differential thermal analysis (DTA), differential …
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Self-organization in immiscible alloy systems under irradiation and severe plastic deformation
… in a nuclear reactor environment, there are high fluxes of neutrons which can cause the alloys to become microstructurally unstable and cause their properties to change over time. In addition, nuclear reactors are kept at high temperatures in order to generate power, which can cause other …