Soviet Powder Metallurgy and Metal Ceramics

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The Structure and Properties of Boride Coatings Depending on the Porosity of Powder Steel Preforms
Soviet Powder Metallurgy and Metal Ceramics - Tập 53 - Trang 417-422 - 2014
G. A. Baglyuk, S. G. Pyatachuk, A. A. Mamonova
Metallographic and X-ray diffraction analyses are used to examine the structure of boride coatings produced by saturation of iron and iron–carbon blanks with different porosities at 1000 and 1100°C and microhardness distribution along their depth is analyzed. It is shown that the thickness of the oxide layer increases with the original porosity of the blanks, but its density and surface microstruc...... hiện toàn bộ
Some relationships governing initiation of self-propagating synthesis in direct electric heating
Soviet Powder Metallurgy and Metal Ceramics - Tập 27 - Trang 813-816 - 1988
V. Ya. Belousov, A. V. Pilipchenko, L. D. Lutsak
Self-propagating high-temperature synthesis with direct passage of current through the powder mixture is characterized by various forms of reaction initiation. Taking into account the general features, three types of initiation were detected: contact, breakdown, and volume. These types operate in all the examined powder mixtures, depending on the heating conditions, the preparation quality of the ...... hiện toàn bộ
Ultrasonic atomization of liquid metals
Soviet Powder Metallurgy and Metal Ceramics - Tập 22 - Trang 254-255 - 1983
Yu. G. Orlov, B. Sh. Mamedov
Thermodynamics of Interaction of Rare-Earth Metals with d-Metals. The Scandium ― Iron System
Soviet Powder Metallurgy and Metal Ceramics - Tập 40 - Trang 354-361 - 2001
Larisa V. Goncharuk, Vladislav R. Sidorko
Gibbs free energies, enthalpies, and entropies of formation of the compounds ScFe2 and Sc29Fe6 are found by measuring the emf of galvanic cells in the range 720-1030 K. The nature of interaction in Fe ― REM binary systems is analyzed. Scandium is shown to behave like a 3d-metal during interaction with iron.
Ferroelectric Thin Films and Multilayer Structures Based on Them
Soviet Powder Metallurgy and Metal Ceramics - Tập 39 Số 7 - Trang 345-354 - 2000
Glinchuk, Maya D.
A brief review is presented of the results of recent research into ferroelectric films and their multilayer structures. The main attention is paid to theoretical calculation of the physical properties that characterize ferroelectric materials (electric polarization, phase transition temperature, dielectric response) in thick and thin films and their multilayer structures. Within the phenomenologic...... hiện toàn bộ
Successive impregnation of sintered low-carbon iron-base alloys with carbon and chromium
Soviet Powder Metallurgy and Metal Ceramics - Tập 17 - Trang 187-191 - 1978
F. G. Lovshenko, Z. M. Lovshenko, V. T. Vysotskii
Effect of electrolyte composition and process parameters on the particle-size distribution of cathodic tantalum deposits
Soviet Powder Metallurgy and Metal Ceramics - Tập 17 - Trang 655-659 - 1978
V. I. Konstantinov, O. A. Karpenko
High-temperature behavior and thermodynamic properties of the compounds Cu3P and CuP2
Soviet Powder Metallurgy and Metal Ceramics - - 1985
S. P. Gordienko, G. Sh. Viksman
Milling of Carbide-Steel Powder Components and Their Mixtures in an Attrition Mill
Soviet Powder Metallurgy and Metal Ceramics - Tập 43 - Trang 223-228 - 2004
Tatyana M. Pavlygo, Leonid G. Plomod'yalo, Roman L. Plomod'yalo, Lev. I. Svistun
Milling of wear-resistant steel and titanium carbide powders is studied with an attrition mill rotation rate of 980 rpm. The physical and technological properties of powders and particle size are determined. Particle shape and the change in material chemical composition during milling are studied. It is established that steel powder cannot be milled to particle sizes less than 3.6 μm whereas a mix...... hiện toàn bộ
The effect of sludge formed during electrolysis on the quality of copper powder
Soviet Powder Metallurgy and Metal Ceramics - Tập 3 - Trang 224-225 - 1965
A. V. Pomosov, V. D. Kalugin
An investigation was made of the effect of current density and electrolyte temperature on sludge formation during the electrolytic production of copper powder. With increase in current density, the relative amount of sludge formation increases and its dispersivity decreases. As the temperature rises from 25 to 55° C, the sludge formation rate changes, passing through a maximum. It is shown that, f...... hiện toàn bộ
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