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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
Ученые ИФХЭ РАН, НИТУ МИСиС, МФТИ и ряда других российских научных организаций изучили и описали би...
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(17/04) Курс “Анализ геномных данных”, Москва, 2 – 11 июля 2012
Уважаемые коллеги, Со 2 по 11 июля 2012 года Учебный центр Института биологии гена РАН организует практический десятидневный курс по статистическому анализу геномных дан...
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Результаты 11 - 13 из 13
11.

Partial Electrode Processes at AC-Polarized Copper in Chloride and Nitrate Media

O. Yu. Kuksina, V. Yu. Kondrashin, and I. K. Marshakov

 

Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006 Russia

Received January 23, 2004

 

Abstract — The dissolution of a copper electrode by passing a rectangular alternating current of an infralow frequency (1/6 Hz) was studied by chronopotentiometric method. The near-electrode concentrations of copper oxidation products were calculated by the numerical solution of the boundary problem of transient diffusion. In concentrated chloride electrolytes, the shape of the E vs. t plot was found to be determined by transient mass transfer. The ratio of the copper reduced during the cathodic half-period to its amount dissolved in the anodic half-period was estimated experimentally. This ratio was used to determine the distribution of faradaic charges between different partial electrode processes. In nitrate electrolytes, cathodic process significantly affects the anodic dissolution of copper.
15/12/2008 | 861 Посещения | Печать

12.

Fourier-Transform Diffuse Reflection IR-Spectroscopy in Studies of Thermal Oxidation of frame018frame110frame2 Steel

V. A. Kotenev, N. P. Sokolova, and A. M. Gorbunov

 

Institute of Physical Chemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 117915 Russia

Received February 18, 2004

 

Abstract — Methodology potentialities of the Fourier-transform diffuse reflection IR-spectroscopy with sharply focused probing beam are discussed as applied to studies of frame318frame410frame5 steel gaseous oxidation at 100–800°C. The method is shown to be promising as regards investigating thermodynamics of the process.
15/12/2008 | 837 Посещения | Печать

13.

A Flow Line for Laser Diagnostics of Corrosion Damage

V. A. Kotenev

 

Institute of Physical Chemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 117915 Russia

Received February 18, 2004

 

Abstract — A method of laser ellipsometric diagnostics of corrosion layers on a great number of samples in laboratory and field conditions is presented. A procedure of laser monitoring is proposed and verified; it allows to remotely control the corrosion layer thickness. A highly sensitive return-path double-reflection optical-electrochemical cell is developed. Basic methodological aspects of using a remote-control laser-ellipsometric probe in a flow line for the laser corrosion monitoring in corrosion tests are illustrated by the example of continuous corrosion monitoring of copper–nickel alloy in saline water.
15/12/2008 | 876 Посещения | Печать

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