Results 71 to 80 of about 8,936 (119)

Darmstadtium carbonyl and carbide resemble platinum carbonyl and carbide

Chem. Commun., 2004
DsC 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, 2006
Carbide 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, 1986
AbstractCarbide/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, M. Hellsing, H. -O. Andrén, H. Nordén   +3 more
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Gas evolution from zirconium carbide, niobium carbide, and tantalum carbide powders

Soviet Powder Metallurgy and Metal Ceramics, 1986
This 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, V. V. Khromonozhkin, A. S. Maskaev, V. G. Vil'chinskii   +3 more
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Carbides

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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Decomposition of NO on Tungsten Carbide and Molybdenum Carbide Surfaces

Catalysis Letters, 2001
The decomposition of 15NO on C/W(111), C/W(110), and on monolayer and bulk C/Mo/W(111) surfaces is compared based on temperature-programmed desorption (TPD) and Auger electron spectroscopy (AES) measurements. Our results indicate that the decomposition of 15NO occurs readily over all surfaces, and the only 15N-containing reaction products are 15N2 and ...
Minghui Zhang, Henry H. Hwu, Mark T. Buelow, Jingguang G. Chen, Todd H. Ballinger, Paul J. Andersen   +5 more
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Formation and spectroscopy of carbides

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2001
We review the evidence for carbides in space both from infrared spectroscopy and direct measurements on presolar grains extracted from primitive meteorites. The paper includes a discussion of the structural properties of silicon carbide and metal carbides and their formation routes from the gas phase.
T, Henning, H, Mutschke
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Metallographic Studies of Iron Carbide and Tungsten Carbide

Nature, 1958
IN most metallographic investigations of steels or of cemented carbides the fine details of the carbides are not studied. We have just completed an etching study of iron carbides made in three different ways and of some tungsten carbide (1/32-in. equilateral triangles) single crystals.
F. J. RADD, L. H. CROWDER
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CARBIDES

1967
K. W. Andrews, D. J. Dyson, S. R. Keown
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Oxidation of ultrafine boron carbide, vanadium carbide, and chromium carbide powders

Soviet Powder Metallurgy and Metal Ceramics, 1983
Yu. L. Krut-skii, G. V. Galevskii, A. A. Kornilov   +2 more
openaire   +1 more source