Diffusion of zirconium in niobium: The influence of fast diffusing impurities on the self-diffusion isotope effect
Journal Article
·
· Phys. Rev., B; (United States)
The diffusion of /sup 95/Zr in niobium was measured over the temperature range from 1923 to 2523 K. The data fit the Arrhenius relation D = 0.85 exp(-3.93 eV/kT) cm/sup 2/ sec/sup -1/. The changes in the self-diffusion isotope effect caused by ultralow levels (less than 100 at. ppm) of a fast-diffusing radioactive impurity are analyzed. It is concluded that radioactive-impurity levels not easily observed by Ge(Li) detectors can introduce large errors into the measurement of the isotope effect.
- Research Organization:
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 5201592
- Journal Information:
- Phys. Rev., B; (United States), Journal Name: Phys. Rev., B; (United States) Vol. 17:2; ISSN PLRBA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360104* -- Metals & Alloys-- Physical Properties
ARRHENIUS EQUATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DIFFUSION
ELEMENTS
EVEN-ODD NUCLEI
IMPURITIES
INTERMEDIATE MASS NUCLEI
ISOTOPE EFFECTS
ISOTOPES
METALS
NIOBIUM
NUCLEI
RADIOISOTOPES
REFRACTORY METALS
SELF-DIFFUSION
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
VERY HIGH TEMPERATURE
ZIRCONIUM
ZIRCONIUM 95
ZIRCONIUM ISOTOPES
360101 -- Metals & Alloys-- Preparation & Fabrication
360104* -- Metals & Alloys-- Physical Properties
ARRHENIUS EQUATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DIFFUSION
ELEMENTS
EVEN-ODD NUCLEI
IMPURITIES
INTERMEDIATE MASS NUCLEI
ISOTOPE EFFECTS
ISOTOPES
METALS
NIOBIUM
NUCLEI
RADIOISOTOPES
REFRACTORY METALS
SELF-DIFFUSION
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
VERY HIGH TEMPERATURE
ZIRCONIUM
ZIRCONIUM 95
ZIRCONIUM ISOTOPES