Results 261 to 270 of about 802,767 (303)

Hydrogen absorption during arc melting

Materials Science and Technology, 1996
AbstractIn the present paper the results of a study dealing with the absorption of hydrogen during arc melting are presented. Arc melting experiments were carried out in an argon-hydrogen atmosphere on small samples of pure iron under stationary arc conditions. The hydrogen absorbed by the sample was measured under various process conditions. Attention
J. W. Hooijmans, G. den Ouden
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Ultrasonic Absorption in Hydrogen Sulfide

The Journal of the Acoustical Society of America, 1971
Ultrasonic absorption has been measured in H2S in the temperature range 300° to 683°K. This data was analyzed to obtain vibrational and rotational relaxation times. The vibrational collision numbers seem to increase with temperature from 300° to 473°K and then decrease with temperature.
H. E. Bass, T. G. Winter
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HYDROGEN ABSORPTION-DESORPTION IN LaMg2Ni

Proceeding of World Congress of Young Scientists on Hydrogen Energy Systems, 2023
M. Di Chio, A. Ziggiotti, L. Schiffini, S. Enzo, G. Cocco, BARICCO, Marcello   +5 more
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Hydrogen absorption kinetics of MmNi4.7Al0.3

International Journal of Hydrogen Energy, 1998
We present the analysis of hydrogen absorption kinetics of MmNi4.7Al0.3 samples performed to identify the limiting process during the reaction. Measurements using the Sieverts technique on activated (powdered), surface-treated (Pd-covered) and intentionally oxided samples were compared to the pressure-time dependence proposed in recently published ...
G.E. Fernández, D. RodrÍguez, G. Meyer
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Absorption of Hydrogen by Nickel

Nature, 1934
IN order to measure the adsorption of hydrogen by pure nickel, free from oxygen, I used a silica tube, containing 12 kilometres of a very thin nickel wire (total weight of the wire 42 grams, mean diameter 0.022 mm.), giving an available surface of at least 8,400 cm.2. The preliminary results indicate that between 200° and 650° C., and pressures up to 0.
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Hydrogen absorption studies on Tb0.27Dy0.73Fe1.9

Journal of the Less Common Metals, 1990
Abstract The hydrogen absorption behaviour of a “Terfenol-D” Tb0.27Dy0.73Fe1.9 alloy has been examined by differential thermal analysis and X-ray diffraction (XRD). The latter indicated the formation of cubic ( a = 7.698 A ), rhombohedral ( a = 5.518 A , α = 61.28° ), rhombohedral ( a = 5.511 A , α = 62.76° ) and amorphous ...
D.G.R. Jones, P.J. Mcguiness, J.S. Abell, I.R. Harris   +3 more
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Pion absorption in hydrogenous substances

Il Nuovo Cimento, 1963
The transfer process from hydrogen to other nuclei for negative pions stopped in hydrogenous substances is investigated. The intensity of this transfer is sharply increased with, theZ value of the atom chemically bound with hydrogen.
V. I. Petrukhin, Yu. D. Prokoshkin
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Hydrogen absorption characteristics in Zr0.2Ho0.8Fe0.5Co1.5

International Journal of Hydrogen Energy, 2000
Hydrogen absorption studies have been carried out on the C15 cubic Laves phase alloy of Zr0.2Ho0.8Fe0.5Co1.5. The p–c data were collected in the pressure and temperature ranges of 0.05 ≤ P (bar) ≤ 45 and 27 ≤ T (°C) ≤ 100, respectively. A maximum hydrogen uptake of 3.6 hydrogen atoms per formula unit at 33 bar and 27°C is observed.
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Hydrogen absorption in La3Ni13B2

Journal of the Less Common Metals, 1983
F. Spada, H. Oesterreicher
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Vibrational Absorption Associated with Hydrogen

2011
The role and properties of hydrogen in semiconductors have been widely investigated during the last decades, and several books and reviews have been dedicated to this topic [1–9].
Bernard Pajot, Bernard Clerjaud
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