Soviet Powder Metallurgy and Metal Ceramics
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The surface tension of liquid nickel-silicon alloys
Soviet Powder Metallurgy and Metal Ceramics - Tập 4 - Trang 238-240 - 1965
A study was made of the effect of composition on the surface tension of nickel-silicon alloys with up to 50 at.% Si. An inflection was observed on the σ isotherm at 28 at.% Si. The unusual shape of the surface tension versus composition curve is ascribed to a microheterogeneous structure of the melt and the presence in the latter of short-range order.
Solid-phase transformations in a mixture of highly disperse powders of the system W-Mo with additions of nickel and carbon in sintering
Soviet Powder Metallurgy and Metal Ceramics - Tập 26 - Trang 806-814 - 1987
Powders for thermal spraying from metalworking waste: Principles of manufacture and potential applications
Soviet Powder Metallurgy and Metal Ceramics - Tập 28 Số 10 - Trang 760-764 - 1989
New washing paste for persons working with high-melting and heat-resistant metals
Soviet Powder Metallurgy and Metal Ceramics - Tập 4 - Trang 340-341 - 1965
Processing properties of reduced nickel powders obtained from Cuban ore
Soviet Powder Metallurgy and Metal Ceramics - Tập 28 - Trang 338-340 - 1989
Nickel powder obtained by reduction from Cuban production waste (PNVK) exhibits good compressibility. Difficult-to-reduce oxide impurities decrease its low-temperature sintering “activity” compared with carbonyl powder and powder reduced from pure nickel oxides. As a result, for sintering PNVK powder higher temperatures (1100–1200°C) are required.
01N17K12M5T Maraging steel under conditions of superfast solidification and high-speed pressing
Soviet Powder Metallurgy and Metal Ceramics - Tập 30 - Trang 23-29 - 1991
During rapid hardening of 01N17K12M5T steel there are significant changes in its structure and properties. The grain size becomes finer, there is a reduction in the degree of chemical inhomogeneity, and the hardness increases. Foils produced by the “hammer and anvil” method have an extremely dispersed martensitic structure with a martensitic plate width of 0.3–0.4 μm and a hardness of up to 10,000...... hiện toàn bộ
Effect of Hydrogen Heat Treatment on the Chemical Composition of Aluminum Nitride Powder
Soviet Powder Metallurgy and Metal Ceramics - Tập 42 - Trang 206-209 - 2003
The effect of hydrogen heat treatment on impurity contents in aluminum nitride powder of different fineness is studied. Thermodynamic calculations are provided pointing to the possibility of forming gaseous hydrogen compounds with impurity elements. It is established that as a result of treatment the contents of impurity elements, i.e. oxygen, carbon, sulfur, are reduced by a factor of 3-13. The o...... hiện toàn bộ
Effect of Mo2C on the Microstructure and Mechanical Properties of (Ti, W)C–Ni Cermets
Soviet Powder Metallurgy and Metal Ceramics - Tập 53 - Trang 57-63 - 2014
(Ti, W)C–Ni cermets with different contents of Mo2C were produced by the spark plasma sintering (SPS) method. The grain size (GS), composition of ceramic phases, and mechanical properties of the sintered cermets were investigated. The amount of Mo2C had a significant influence on the microstructure and mechanical properties of as-prepared cermets. GS and fracture toughness (KIc) were decreased as ...... hiện toàn bộ
A set of machines and a method for determining the bearing characteristics of materials under sliding friction conditions
Soviet Powder Metallurgy and Metal Ceramics - Tập 12 Số 1 - Trang 55-58 - 1973
Reduction kinetics of molybdenum and tungsten in a quasibinary oxide system
Soviet Powder Metallurgy and Metal Ceramics - Tập 23 - Trang 93-97 - 1984
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