Room-temperature creep of tantalum tritides

Journal Article · Fri Jun 15 00:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.345825· OSTI ID:6885545

Schober, T; Trinkaus, H ^[1]

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1. Institut fuer Festkoerperforschung, Forschungszentrum Juelich, 5170 Juelich, Federal Republic of Germany (DE)

We report on long-term creep experiments on dilute tantalum tritides at room temperature. Significant deviations of the recorded strain rates from isotropic swelling are found above approximately 30 MPa. We attribute this room-temperature creep to a stress-induced preferential dislocation loop punching by bubbles in crystallographic directions close the stress axis. Quantitative estimates show that this mechanism can indeed account for the observed creep rates.

• OSTI ID: 6885545
• Journal Information: Journal of Applied Physics; (USA), Vol. 67:12; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TANTALUM COMPOUNDS
CREEP
TRITIUM COMPOUNDS
DEGASSING
DISLOCATIONS
MEDIUM TEMPERATURE
POLYCRYSTALS
STRESSES
ULTRAHIGH VACUUM
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
HYDROGEN COMPOUNDS
LINE DEFECTS
MECHANICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties