Published January 15, 1978
| Version v1
Journal article
Niobium self-diffusion
Creators
- 1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
Description
The diffusion of 95Nb in niobium has been measured between 1353 and 2693 K. The data showed nonlinear Arrhenius behavior and fit the expression D = [8 x 10-3 exp (-3.62 eV/kT) + 3.7 exp (-4.54 eV/kT)] cm2sec-1. The data are interpreted in terms of a single-vacancy-divacancy mechanism. The effect of oxygen on niobium self-diffusion was measured over the temperature range 1750-2690 K. There was no measurable difference in the diffusion coefficient obtained from samples with 500-wt-ppm O2 and samples with less than 10-wt-ppm O2
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review B
- Journal Volume
- 17
- Journal Issue
- 2
- Series
- Phys. Rev., B.
- Journal Page Range
- 440-448
- ISSN
- 0163-1829
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 9388847
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ARRHENIUS EQUATION; IMPURITIES; NIOBIUM; NIOBIUM 95; OXYGEN; SELF-DIFFUSION; TEMPERATURE DEPENDENCE; TRACER TECHNIQUES; VACANCIES; VERY HIGH TEMPERATURE
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DAYS LIVING RADIOISOTOPES; DIFFUSION; ELEMENTS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; METALS; NIOBIUM ISOTOPES; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; POINT DEFECTS; RADIOISOTOPES; TRANSITION ELEMENTS
Optional Information
- Notes
- Updated automatically by Metadata and Full-Text Enrichment Agent