Results 261 to 270 of about 115,773 (314)
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Carbide grain growth in cemented carbides
Acta Materialia, 2011Abnormal grain growth is often observed in cemented carbides during sintering, but cannot be understood in terms of the classical LSW theory.
Karin Mannesson +3 more
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Processing of silicon carbide–boron carbide–aluminium composites
Journal of the European Ceramic Society, 2009Abstract The aim of this work was to shed light on the wetting mechanism in the SiC–B 4 C–Al system and to explore processing routes that enable infiltration of Al alloys into these ceramic powder mixtures without the formation of the deleterious reaction product Al 4 C 3 .
Arslan, Gürsoy, Kalemtaş, Ayşe
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Reinforcement of tungsten carbide grains by nanoprecipitates in cemented carbides
Nanotechnology, 2016In contrast to the conventional method that obtains a high fracture strength of tungsten carbide-cobalt (WC-Co) cemented carbides by reducing WC grain size to near-nano or nanoscale, a new approach has been developed to achieve ultrahigh fracture strength by strengthening the WC grains through precipitate reinforcement.
Xingwei, Liu +5 more
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Darmstadtium carbonyl and carbide resemble platinum carbonyl and carbide
Chem. Commun., 2004DsC and DsCO are calculated to be very similar to PtC and PtCO, suggesting that even the latest 6d elements resemble the corresponding 5d elements chemically.
Michael, Patzschke, Pekka, Pyykkö
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Kinetics of conversion of silicon carbide to carbide derived carbon
Journal of Physics: Condensed Matter, 2006Carbide derived carbon (CDC) was produced on SiC by reaction with flowing Ar-3.5% Cl(2) gas at 900 and 1000 °C. The thickness of the CDC layer increased with time during high temperature exposure according to a parabolic rate equation represented by K(p) = [2.48 × 10(-6)e(-(165 000/RT))] m(2) s(-1).
Allen, Lee, Ranyi, Zhu, M, McNallan
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Quantitative microanalysis of carbide/carbide interfaces in WC–Co-base cemented carbides
Materials Science and Technology, 1986AbstractCarbide/carbide boundaries in WC–Co-base cemented carbides containing 6–20 wt-%Co were studied with two high resolution microanalytical techniques: atom probe field ion microscopy and analytical transmission electron microscopy. All boundaries studied, i.e.
A. Henjered +3 more
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Gas evolution from zirconium carbide, niobium carbide, and tantalum carbide powders
Soviet Powder Metallurgy and Metal Ceramics, 1986This work was undertaken with the aim of determining the gas contents of zirconium carbide, niobium carbide, and tantalum carbide powders as functions of their processing history. A high-vacuum, high-temperature apparatus was used, connected to an oilless evacuation system and instruments for the mass-spectrometric measurement of amounts and ...
A. V. Makeev +3 more
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1999
Abstract This chapter discusses the formation of free carbides and their effect on case-carburized components. It explains how alloying elements influence the composition and structure of carbide phases produced at cooling rates typical of carburizing process.
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Abstract This chapter discusses the formation of free carbides and their effect on case-carburized components. It explains how alloying elements influence the composition and structure of carbide phases produced at cooling rates typical of carburizing process.
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