Results 221 to 230 of about 61,031 (260)
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Measurement of Swelling for PP/Gas Mixtures
SAE Technical Paper Series, 2005<div class="htmlview paragraph">Foaming of thermoplastic polyolefins (TPO) and thermoplastic elastomers (TPE) is gaining interest because of the lightweight and high performance to weight ratio of foamed automotive parts. Since foaming will occur mainly in the PP matrix in these PP-based automotive materials, understanding of the thermophysical ...
Y. G. Li, J. Wang, C. B. Park
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Kinetics of Gas-Bubble Swelling in Silver
Journal of Applied Physics, 1971A nondestructive method has been used to monitor continuously the volume changes in thin-walled tubes of oxygen-bearing silver which were heated in an argon ambient containing a few percent hydrogen. A large direct current was used to heat the samples while their ends were water cooled.
H. R. Patil, H. B. Huntington
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Reversibility of fission gas swelling in uranium
Journal of Nuclear Materials, 1969Abstract The effect of hydrostatic pressures up to 1000 bar on the behavior of pre-formed bubbles in irradiated uranium has been studied. High pressure, 900 °C anneals cause the fission gas swelling, induced in uranium by 600 °C vacuum anneals, to be reversed. Subsequent high temperature (900–1080 °C) vacuum tests produce the same swelling as samples
G.L. Kulcinski, R.D. Leggett
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The theory of degassing and swelling of a supersaturated-by-gas solution
Physica A: Statistical Mechanics and its Applications, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kuchma, A. E. +2 more
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Mechanisms of swelling and gas release in uranium dioxide
Journal of Nuclear Materials, 1971Abstract Data on the external dimensional changes and gas release behavior of uranium dioxide irradiated in tungsten-rhenium claddings at surface temperatures from 1325 to 1900 °C are presented. External dimensional changes and gas release fractions increase with increasing temperatures; but the density of the uranium dioxide shows little change ...
R.F. Hilbert +3 more
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Fission gas swelling of refractory nuclear fuels
Materials Science and Engineering, 1972Abstract The external diametral swelling rates of uranium oxides, nitrides and carbides at temperatures of up to 1900°C are presented. Under similar conditions, the swelling rates are seen to increase from approximately 0.2 percent per 1020 fissions per cm3 at 1200°C to 10–30 percent per 1020 fissions per cm3 at 1900°C.
W Chubb +3 more
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Contribution of polymeric swelling to the overall response of capacitive gas sensors
Analytical and Bioanalytical Chemistry, 2013A new method for investigation of the swelling of polymers on exposure to gas or vapour has been devised and tested. It uses an optical profilometer (based on the chromatic aberration of a lens system) which is integrated into a computer-controlled gas-dosing and mixing setup. Gas and/or vapour concentration-dependent measurements have been carried out
Altenberend, Ulrike +3 more
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Swelling and gas release in UO2 at low and intermediate temperatures
Journal of Nuclear Materials, 1977Abstract A model is proposed to describe in-pile fission gas swelling and gas release at temperatures below approximately 1700°C where columnar grain growth is not expected. The model considers fission gas behavior at the grain interior, on the grain boundaries and grain boundary edges under conditions of both total gas bubble destruction by fission ...
C.C. Dollins, F.A. Nichols
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A theoretical model for gas adsorption-induced coal swelling
International Journal of Coal Geology, 2007Abstract Swelling and shrinkage (volumetric change) of coal during adsorption and desorption of gas is a well-known phenomenon. For coalbed methane recovery and carbon sequestration in deep, unminable coal beds, adsorption-induced coal volumetric change may cause significant reservoir permeability change.
Zhejun Pan, Luke D Connell
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Gas release and swelling in oxide fuel; modeling of the kinetics of gas porosity development
Journal of Nuclear Materials, 1982Abstract A quantitative model of gas porosity development, gas release and gas swelling in oxide fuel is proposed. In the model the gas porosity evolution is supposed to be caused by the collision and coalescence of moving gas bubbles. The suppression of small gas bubble mobility is taken into account too. For oxide fuel, calculation results are in a
E.Ya. Mikhlin, V.F. Chkuaseli
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