Nucleation and Growth of Gas Bubbles in Elastomers
作者:
A. N. Gent,
D. A. Tompkins,
期刊:
Journal of Applied Physics
(AIP Available online 1969)
卷期:
Volume 40,
issue 6
页码: 2520-2525
ISSN:0021-8979
年代: 1969
DOI:10.1063/1.1658026
出版商: AIP
数据来源: AIP
摘要:
An experimental study is described of the formation and growth of gas bubbles in crosslinked elastomers. A critical condition for bubble formation is found to hold in most cases: The gas supersaturation pressure must exceed 5G/2, whereGis the shear modulus of the elastomer. The kinetics of bubble growth are shown to be in good accord with a simple diffusion‐controlled growth relation for a variety of gases, elastomers, temperatures, and pressures. The number of bubbles depends strongly upon the degree of supersaturation above the critical level. This effect is attributed partly to kinetic factors and partly to the presence initially of internal holes of a range of sizes.
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