Results 171 to 180 of about 2,611 (212)

Reflectivity measurements on molybdenite

Economic Geology, 1967
With reference to a paper published by J. H. Leow (see this Bibliography Vol. 31, No. 1, 12 E67-00463), it is pointed out that polishing produces a surface layer whose properties, such as reflectivity, may differ from theoretical properties of the same material.
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Real Space Crystallography in Molybdenite

Nature Physical Science, 1973
IN this letter we report further observations made during our development of a new electron diffraction technique, which was introduced under the title of ‘;Real Space Crystallography’;1. This technique involves the use of bend contour patterns, which are produced in thin domed or saucer-shaped foil specimens when an aperture is inserted in the back ...
G. J. TATLOCK, J. W. STEEDS
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Lime-scavenged reduction of molybdenite

Minerals Engineering, 1993
Abstract Of the numerous approaches proposed during the past two decades for molybdenum extraction, a new route of considerable promise is the direct reduction of molybdenite in the presence of the potent sulphur scavenger lime. This paper presents an overview of the researches carried out on this subject in our laboratory.
P.M. Prasad, T.R. Mankhand, P.Suryaprakash Rao   +2 more
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Epitaxial deposition of silver on molybdenite

Surface Science, 1972
Abstract Silver was found to deposit epitaxially on molybdenite at substrate temperatures from — 165°C to 625°C. The degree of epitaxy decreased with decreasing substrate temperature with rotations of up to 4°. Regions with hcp-type silver diffraction patterns were observed at low substrate temperatures.
G. Pilkington, J.P. Hirth
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Roasting Kinetics of Molybdenite Concentrates

Canadian Metallurgical Quarterly, 2009
AbstractRoasting of MoS2 concentrate is an important step in the production of commercial molybdenum trioxide. The oxidation kinetics of two different molybdenum concentrates was investigated at temperatures from 440 to 640 °C. For both concentrates the oxidation is fairly slow and incomplete below 500 °C.
T. Marin, T. Utigard, C. Hernandez
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The Electrical Conductivity of Molybdenite

Physical Review, 1923
Electrical conductivity of molybdenite (Mo${\mathrm{S}}_{2}$) as a function of voltage and temperature.---Measurements of the currents through narrow flat strips cut perpendicular to the crystallographic $c$-axis gave results for the range from 0\ifmmode^\circ\else\textdegree\fi{} to about 200\ifmmode^\circ\else\textdegree\fi{} C, in agreement with the
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Polytypes of molybdenite and their occurrence in ores

International Geology Review, 1970
(1970). Polytypes of molybdenite and their occurrence in ores. International Geology Review: Vol. 12, No. 1, pp. 74-86.
F. V. Chukhrov, B. B. Zvyagin, L. P. Yermilova, S. V. Soboleva, V. G. Khitrov   +4 more
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Band structural properties of MoS2 (molybdenite)

Journal of Physics and Chemistry of Solids, 1980
Abstract Semiconductivity and superconductivity in MoS2 (molybdenite) can be understood in terms of the band structure of MoS2. We present here the band structural properties of MoS2. The energy dependence of neff and exeff is investigated. Using calculated values of neff and exeff, the Penn gap has been determined.
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Pelletizing of sulfide molybdenite concentrates

Russian Metallurgy (Metally), 2007
The results of a pelletizing investigation using various binding components (water, syrup, sulfite-alcohol distillery grains, and bentonite) of the flotation sulfide molybdenite concentrate (∼84% MoS2) from the Mongolian deposit are discussed. The use of syrup provides rather high-strength pellets (>3 N/pellet or >300 g/pellet) of the required size (2 ...
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Roasting Kinetics of Molybdenite Concentrates

2018
Molybdenum is a refractory metal that has melting point at ~2610 °C. It has high modulus of elasticity even at elevated temperatures. Almost 80% of molybdenum is used as alloying element for ferromolybdenum. When added to steel, molybdenum increases strength hardenability, toughness, elevated temperature strength and corrosion resistance.
Selcuk Kan, Kagan Benzesik, Onuralp Yücel   +2 more
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