Ion beam technique for the measurement of deuterium diffusion coefficients
This letter describes how a combination of the techniques of nuclear microanalysis and cathodic hydrogenation has been used to determine the diffusion coefficient of dueterium in austenitic stainless steel at room temperature. Samples charged in deuterated acid solutions to levels of about 20 at. % deuterium were quickly transferred to a scattering chamber where a depth profile of the near-surface deuterium was measured. For charging times much longer than the transfer plus anlyzing time, the deuterium profile could be described by an error function at the specimen surface. A diffusion coefficient was determined by a chi-squared test fitting procedure and shown to be consistent with values reported for other methods measured at higher temperatures.
- Research Organization:
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5459520
- Journal Information:
- Appl. Phys. Lett.; (United States), Vol. 36:10
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DEUTERIUM
DIFFUSION
STAINLESS STEEL-310
PERMEABILITY
DEPTH
EQUATIONS
HYDROGENATION
ION BEAMS
MATHEMATICAL MODELS
MEDIUM TEMPERATURE
MICROANALYSIS
SCATTERING
SURFACES
ALLOYS
BEAMS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
DIMENSIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN ISOTOPES
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MATERIALS
NICKEL ALLOYS
NUCLEI
ODD-ODD NUCLEI
STABLE ISOTOPES
STAINLESS STEELS
STEELS
360100* - Metals & Alloys