THE ZIRCONIUM-HYDROGEN SYSTEM: SOME THERMODYNAMIC PROPERTIES FROM A HEAT CONTENT STUDY

Journal Article · Wed Oct 01 04:00:00 EDT 1958 · Journal of the American Chemical Society (U.S.)

DOI:https://doi.org/10.1021/ja01552a010· OSTI ID:4278995

Douglas, T B

The relative heat contents of zirconium and five zirconiun hydrides (24 to 52 atomic % hydrogen) were precisely measured over the range 0 to 900 C. Appreciable hysteresis was observed only near the eutectoid temperature. After developing a method generally applicable to heterogeneous systems, the heats of isothermal hydriding throughout most of the range of temperature and composition investigated were derived. Several or the boundaries of the phase diagram also were derived from the thermal data and are found to be in reasonably good agreement with the published results found by other methods. The energies and relative stabilities of the high temperature crystalline forms are discussed qualitatively after estimating their disorder entropies. (auth)

• Research Organization: Univ. of California, Berkeley
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-002314
• OSTI ID: 4278995
• Journal Information: Journal of the American Chemical Society (U.S.), Journal Name: Journal of the American Chemical Society (U.S.) Vol. Vol: 80; ISSN JACSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BINDING ENERGY
CONFIGURATION
CRYSTALS
ENERGY
ENTROPY
EUTECTICS
HEAT TRANSFER
HYDROGEN
MEASURED VALUES
MELTING POINTS
NUMERICALS
PHYSICS AND MATHEMATICS
STABILITY
TEMPERATURE
THERMODYNAMICS
ZIRCONIUM
ZIRCONIUM HYDRIDES