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Helium Diffusion Through Glass
Author(s) -
NORTON FRANCIS J.
Publication year - 1953
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1953.tb12843.x
Subject(s) - helium , analytical chemistry (journal) , diffusion , argon , neon , deuterium , materials science , hydrogen , nitrogen , silicate glass , mineralogy , chemistry , atomic physics , chromatography , thermodynamics , physics , organic chemistry
Using the mass spectrometer as an analytical tool and as a means of rate measurement, the rates of helium diffusion through nine types of glass were measured. The temperature range covered was from –80° to 600°C. The highest rates were for fused silica and Vycor brand glass; the lowest were for the lead glasses. The rate at 100°C. decreased by a factor of one million as the percentage of glassformers (SiO 2 , B 2 O 3 , P 2 O 5 ) decreased in the glass composition. A few measurements are also given for hydrogen, deuterium, and neon rates through fused silica and estimates are made of the upper limit for argon, oxygen, and nitrogen at 700°C.