منابع مشابه
The Precipitation of Carbides during Tempering of High Carbon Martensite*
perature range between 260° and 360°C. Jack showed that thin platelets of cementite formed at the beginning of this stage(10). In high carbon steels, the transformation twin interfaces are potent nucleation sites for the cementite formation and the cementite is related to the ferrite by Bagaryatskii's orientation relationship(2)(3)(11). Although there is no direct evidence of its existence in s...
متن کاملThe carbon reduction of uranium oxide
The preparation of uranium metal directly from its oxides has been studied by a number of investigators. Various approaches have been pursued in these studies. Some attempts to produce the metal by electrolysis of the oxide in fused salt have been made; however, the reductions of the oxides by another metal and by carbon have attracted most attention. Although no entirely satisfactory method ha...
متن کاملFracture toughness in some hetero-modulus composite carbides: carbon inclusions and voids
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متن کاملTheoretical investigation on carbon nucleation on nickel carbides at initial stages of single-walled carbon nanotube formation.
It is a long-standing controversy whether metal carbide clusters do exist during the nucleation and growth process of single-walled carbon nanotubes (SWCNTs). In the current work, we are trying to elucidate the carbon nucleation on nickel carbides during the initial stages based on density functional theory calculated formation energy and chemical potential for a series of Ni55Cn carbides (n is...
متن کاملCarbon dioxide reduction and carbon monoxide activation employing a reactive uranium(III) complex.
The highly reactive, six-coordinate tris-aryloxide U(III) species, [((t-BuArO)3tacn)U] (1) reacts with CO2 in a 2e- reduction to produce CO and a dinuclear U(IV/IV) mu-oxygen bridged complex [{((t-BuArO)3tacn)U}2(mu-O)] (2). This reaction proceeds via a dinuclear CO2-bridged intermediate 3. Also, mononuclear 1 was treated with 1 atm of CO to yield dinuclear [{((t-BuArO)3tacn)U}2(mu-CO)] (4) wit...
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ژورنال
عنوان ژورنال: Acta Crystallographica
سال: 1959
ISSN: 0365-110X
DOI: 10.1107/s0365110x59000445