RESEARCH ON THE SYSTEM ZIRCONIUM-OXYGEN. I. THE ELECTRICAL RESISTANCE OF OXYGEN-CONTAINING ZIRCONIUM

Journal Article · Tue Aug 01 04:00:00 EDT 1961 · J. Nuclear Materials

DOI:https://doi.org/10.1016/0022-3115(61)90074-5· OSTI ID:4825947

Gebhardt, E; Seghezzi, H; Duerrschnabel, W

The temperature dependence of the resistivity of zirconium--oxygen solid solutions was investigated. Measurements were made on specimens, In the form of wires, which had been loaded with oxygen at a pressure of 1.5 x l0/sup -3/ mm of mercury and at temperatures in the range 16002030 deg K. Specimens thus prepared were then investigated between room temperature and 2030 deg K throughout the stability range of the metallic solid solution (0 to about 30 at. % oxygen). It was found that the resistivity of the oxygen-bearing U zirconium phase has a normal temperature dependence and that Matthiesen's Rule is obeyed by this phase. On the other hand, the more highly oxygenated alpha zirconiurn solid solution showed an unexpected temperature dependence of resistivity, and Matthiesen's Rule was not obeyed. It was found that dissolved oxygen reduces the slope of the resistivity-temperature curves and that a negative temperature coefficient arises above a definite critical temperature. This critical temperature is a function of oxygen content; for alpha zirconium containing, for instance, 18 at.% oxygen it is about 550 deg K. (auth)

• Research Organization: Max-Planck-Institut fur Metallforschung, Stuttgart
• NSA Number: NSA-16-004570
• OSTI ID: 4825947
• Journal Information: J. Nuclear Materials, Journal Name: J. Nuclear Materials Vol. Vol: 4
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ALLOTROPY
ELECTRIC CONDUCTIVITY
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
OXYGEN
PRESSURE
SOLID SOLUTIONS
TEMPERATURE
WIRES
ZIRCONIUM
ZIRCONIUM-ALPHA
ZIRCONIUM-BETA