期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 91, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0012741
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资金
- Savannah River National Lab (SRNL) Laboratory Directed Research and Development program [LDRD-2020-00065]
- United States Government [DE-AC09-08SR22470]
This manuscript describes the development and operation of an apparatus for the measurement of steady-state and transient gas permeation through different types of solid materials with varying geometries. It is capable of operation from 293 K to 673 K and could theoretically be used with any non-corrosive gas or a mix of gases, although only hydrogen isotopes are used in the current study. A quadrupole mass spectrometer is used to measure permeation fluxes as low as 10(11) molecules/s. This unique test setup allows for the simultaneous measurement of diffusivity, solubility, and permeability. Furthermore, varying the pressure in the fore-sample volume allows for tests of Sievert's law and can give information on surface effects.
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