Results 11 to 20 of about 363,556 (256)
Applied Sciences, 2023 In order to expand the zero-energy building, it is necessary to evaluate the economic feasibility of the passive and active elements applied to achieve the zero-energy building.
Soonmyung Lee, Sanghoon Park
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HARDENING BY HARD CHROMING (ELECTROLYTIC) [PDF]
Fiabilitate şi Durabilitate, 2023 The deposition of a layer of chrome on the surface of a part, through hard (electrolytic) chrome plating, is applied in order to increase the hardness and wear resistance of the surface layer of the working surfaces of the active elements of the punch.
STĂNCIOIU A, STĂNCIOIU E.L.
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On modification of eutectic cast iron graphite
Литьë и металлургия, 2023 It has been shown that elementary crystalline cells of graphite and basic products of iron modification do not correspond to the principle of structural and dimensional correspondence of Dankov –Konobeevsky. Modifying elements Al, Ca, Mg, Ba, Ce increase
E. I. Marukovich +2 more
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Use of nanostructured and modified TiO2 as a gas sensing agent
Cerâmica, 2021 Titanium dioxide (TiO2) has attracted interest for sensory applications due to its high surface area and the high density of active adsorption sites. This review shows the effect of the nanostructure, synthesis technique, operating temperature, target ...
R. Alves Junior +5 more
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NANOSTRUCTURIZATION IN FOUNDRY PROCESSES
Литьë и металлургия, 2018 It is shown that at crystallization of alloys the sophisticated nanostructural processes have place. The nanocrystals of phases, their atoms, the centers of crystallization of dendrites, surface-active elements, gases, modifying elements, poorly soluble ...
E. I. Marukovich, V. Yu. Stetsenko
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On the stability of aluminum oxide in carbon steel melts
Литьë и металлургия, 2023 It is shown that hydrogen atoms in carbon steel melts are surface‑active elements for aluminum oxide microcrystals. Adsorbed hydrogen atoms reduce the interfacial surface energy and increase the resistance of small aluminum oxide microcrystals to ...
E. I. Marukovich +2 more
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Solutions of the scientific problem of modifying of foundry alloys
Литьë и металлургия, 2019 For a solution of the problem of modification of a microstructure of cast alloys it is necessary to accept admission that crystallization centers of crystals of phases are the crystalline buildups consisting of nanocrystals of phases.
E. I. Marukovich, V. Yu. Stetsenko
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Surface and interfacial properties of Fe-C-O-Cr alloys in contact with alumina [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2020 In this paper, temperature and concentration dependencies on density and surface tension of liquid Fe-C-O-Cr alloys (1.93 - 4.80 wt.% Cr) were investigated in high-temperature resistance observation furnace by a sessile drop method during heating from ...
Novák V. +6 more
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On deoxidation and modification of carbon steel
Литьë и металлургия, 2023 It has been shown that the elementary crystal cells of the basic products of deoxidation and modification of carbon steel, δ ferrite and austenite do not correspond to the principle of structural and dimensional correspondence of Dankov – Konobeevsky ...
E. I. Marukovich +2 more
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Research Status on Surface Modification of Materials by Low-Temperature Plasma [PDF]
Cailiao Baohu, 2022 As a new type of method to activate molecular, low-temperature plasma has a large number of active particles with various types, which are easy to react with the surface of the material, and is suitable for surface modification treatment of the materials.
QIAO Qian-sen, BA De-ma
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