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(11/10) Ученые из ИФХЭ РАН и МГУ под руководством Ольги Виноградовой поняли, как «полосатая» гидрофобность..
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(11/10) Ученые обнаружили пути проникновения вирусов гриппа и ВИЧ в организм
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(17/04) Курс “Анализ геномных данных”, Москва, 2 – 11 июля 2012
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(12/03) Впервые получено изображение атомов, движущихся в молекуле
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Results 11 - 14 of 14
11.

Theoretical Foundations and Practical Development of Few-Component Anticorrosive Oil-Based Conservation Materials

V. I. Vigdorovich and N. V. Shel’

 

Derzhavin Tambov State University, ul. Internatsional’naya 33, Tambov, 392662 Russia

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Received July 3, 2004

 

Abstract — The concept of creating few-component anticorrosive oil-based conservation materials and the functional properties of industrially used formulations from waste motor oil and still bottoms in the production of synthetic fatty acids (SFAs) were considered. Corrosion, electrochemical, and rheological properties, as well as water permeability of films of such formulations, were determined. Mixtures of SFAs with individual n-alkanes C8C15 were tested.
23/09/2008 | 1302 Hits | Print

12.

On the Physical Sense of Chemical Potential

R. R. Salem

 

Higher Chemical College, Russian Academy of Sciences, Moscow, Russia

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Received August 20, 2004

 

Abstract — The polarization effects of intermolecular and intramolecular interactions are the most universal basis to formulate the physical meaning of chemical potential.
23/09/2008 | 1281 Hits | Print

13.

On Unacceptable Use of Austenitic Sleeves and Surfacing Alloys for Repair of Carbon-Steel Equipment

M. L. Medvedeva, L. A. Efimenko, and A. V. Sidorenko

 

Gubkin State University of Oil and Gas, Leninskii pr. 65, Moscow, 119991 Russia

Received September 10, 2004

 

Abstract — Substantial part of equipment in gas-treating plants for removal of acidic impurities in oil and gas refineries needs repair, for which purpose austenitic sleeves are often used. Austenitic surfacing nickel alloys recommended for restoring the damaged surface by overlaying welding was found to be unsuitable because both the deposited material and the fusion line with the base metal are electrochemically heterogeneous, which makes repaired apparatuses insufficiently reliable. Use of sleeves is also inexpedient.
23/09/2008 | 1221 Hits | Print

14.

A frame0Geometric Modelframe1 of Glass-Enamel Coating. Part 2. Contact Area with Metal, the Gas-Phase Volume Fraction, and the Minimum Coatingframe2s Cross-Section

N. T. Shardakov and V. Ya. Kudyakov

 

Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences,
ul. S. Kovalevskoi 20, Yekaterinburg, 620219 Russia

Received June 12, 2004

 

Abstract — In terms of a geometric model, an equation of the minimum cross-section area of a glass-enamel coating, as well as its particular form to calculate the contact area between the coating and the metal substrate, is derived. The expressions to assess the gas-phase volume fraction in the coating and its density are also obtained. It is shown that tearing the coating off occurs most probably in the plane of the minimum coating’s cross-section rather than the metal/coating interface.
23/09/2008 | 1217 Hits | Print

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