REACTOR MATERILAS STUDY. RESEARCH AND DEVELOPMENT OF METAL HYDRIDES. Quarterly Report No. 2 for January 1, 1959 to March 31, 1959

Technical Report · Wed Apr 15 04:00:00 EST 1959

OSTI ID:4790300

Beck, R L; Mueller, W M

The ease of preparation of relatively large crack-free hydrided specimens was found to be largely dependent on the phsse state of the hydride at the hydriding temperature. Cracking apparently resulted from hydrogen concentration gradients (with resulting phase concentration gradients) within a two phase region. The control of grinding cracks in the preparation of hydrided tensile specimens is described. Preliminary tensile testing and thermal conduc td toft pr of bij tivity data for zirconium hydride and thermal expansion data for titanium-base alloy hydrides are given. The titanium-hydrogen system is described in detail and pressure-temperature-composition data for the hydrides of titanium-base alloys with selected rare earths are given. It appears that the most promising titanium-rare earth binary alloy for shielding applications is one containing about 40 wt% gadolinium. Apparently the solubility of the 4f rare earths in titanium increases with increasing atomic number. The effects of alpha and beta stabilization of titanium on its hydridlng characteristics are shown. (auth)

• Research Organization: Denver. Univ. Denver Research Inst.
• NSA Number: NSA-16-012098
• OSTI ID: 4790300
• Report Number(s): LAR-2
• Country of Publication: United States
• Language: English

Related Subjects

ALLOTROPY
ALLOYS
ATOMIC MODELS
ATOMS
CONTROL
CRACKS
EXPANSION
GADOLINIUM
GADOLINIUM ALLOYS
HYDRIDES
HYDROGEN
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
NUMERICALS
PHASE DIAGRAMS
PREPARATION
PRESSURE
QUANTITY RATIO
RARE EARTHS
REACTOR MATERIALS
SHIELDING
SOLUBILITY
STABILITY
TEMPERATURE
TENSILE PROPERTIES
TESTING
THERMAL CONDUCTIVITY
TITANIUM
TITANIUM HYDRIDES
TITANIUM HYDROXIDES
TITANIUM-ALPHA
TITANIUM-BETA
USES
ZIRCONIUM HYDRIDES