Effect of diffusion-diaphragm surface conditions on determination of diffusion coefficient and penetration factor of hydrogen into iron and ferrous alloys

1976 ◽  
Vol 10 (5) ◽  
pp. 522-524
Author(s):  
V. I. Salii ◽  
R. A. Ryabov
Keyword(s):  
Diffusion Coefficient ◽  
Ferrous Alloys ◽  
Surface Conditions ◽  
Penetration Factor

DETERMINATION OF HYDROGEN DIFFUSION COEFFICIENT IN TiNi ALLOY BY ELECTROCHEMICAL METHOD

1986 ◽  
pp. 445-450
Author(s):  
Chao Jinlan ◽  
Zhou Zuoxiang ◽  
Guo Zhunhuan ◽  
Wang Ruimin ◽  
Wan Genshi
Keyword(s):  
Diffusion Coefficient ◽  
Electrochemical Method ◽  
Hydrogen Diffusion ◽  
Tini Alloy ◽  
Hydrogen Diffusion Coefficient

Determination of Al0.25Ga0.75As longitudinal diffusion coefficient D(E) from H.F. noise measurements. Comparison with GaAs results

1993 ◽  
Author(s):  
M. de Murcia ◽  
D. Gasquet ◽  
E. Richard ◽  
P. Wolff ◽  
J. Zimmermann ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Longitudinal Diffusion ◽  
Noise Measurements

The use of gelatin in the determination of silicon in ferrous alloys, especially silicon-rich ferro-alloys

The Analyst ◽  
1950 ◽  
Vol 75 (894) ◽  
pp. 481 ◽  
Author(s):  
M. H. Jenkins ◽  
J. A. V. Webb
Keyword(s):  
Ferrous Alloys

DETERMINATION OF DIFFUSION COEFFICIENT OF THE TURKISH TRONA IN WATER

1996 ◽  
Vol 05 (01) ◽  
pp. 3-11 ◽  
Author(s):  
GÜLHAYAT NASÜN-SAYGILI ◽  
HASANCAN OKUTAN
Keyword(s):  
Diffusion Coefficient

Lithium Ion Diffusion Through Glassy Carbon Plate

1997 ◽  
Vol 496 ◽  
Author(s):  
M. Inaba ◽  
S. Nohmi ◽  
A. Funabiki ◽  
T. Abe ◽  
Z. Ogumi
Keyword(s):  
Diffusion Coefficient ◽  
Glassy Carbon ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Irreversible Capacity ◽  
Oxidation Current ◽  
Current Curve ◽  
Carbon Plate ◽  
Lithium Ion Diffusion

ABSTRACTThe electrochemical permeation method was applied to the determination of the diffusion coefficient of Li+ion (DLi+) in a glassy carbon (GC) plate. The cell was composed of two compartments, which were separated by the GC plate. Li+ions were inserted electrochemically from one face, and extracted from the other. The flux of the permeated Li+ions was monitored as an oxidation current at the latter face. The diffusion coefficient was determined by fitting the transient current curve with a theoretical one derived from Fick's law. When the potential was stepped between two potentials in the range of 0 to 0.5 V, transient curves were well fitted with the theoretical one, which gaveDLi+ values on the order of 10−8cm2s−1. In contrast, when the potential was stepped between two potentials across 0.5 V, significant deviation was observed. The deviation indicated the presence of trap sites as well as diffusion sites for Li+ions, the former of which is the origin of the irreversible capacity of GC.

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