HYDRIDES AND METAL-HYDROGEN SYSTEMS. Final Report

Technical Report · Mon Apr 30 04:00:00 EDT 1951

DOI:https://doi.org/10.2172/4817764· OSTI ID:4817764

The work reported deals with the preparation and physical properties, especially thermal dissociation pressures, and densities of hydrides, hydrogen- metal systems, and mixtures of hydrides with other substances. Possible applicatlons as moderators, high-temperature neutron shields, and low-temperature shields are cited and design problems discussed. Most of the data on dissociation pressures cover ranges and compounds not hltherto explored because of experimental difficulties and the basic knowledge of the thermal behavior of hydrides was substantially increased. New hydrldes were prepared and several reported in the literature were shown not to exist. The following compounds, mixtures, and systems were studled: Tl-H, U-H, Ll-H, Na-H, Ca-H, Ba-H, Th-H, Sr- H; NaH-NaF, NaH-NaOH, NaH-CaH/, LlH-LiF, CaH/sub 2/-CaF/sub 2/, CaH/sub 2/-CaC/ sub 2/,CaH/sub 2/-Ca/sub 3/N/sub 2/; FeH/sub 3/ (alleged), NiH/sub 2/ (alleged), Ti(BH/sub 4/)/sub 3/, Th(BH/sub 4/)/sub 4/, WH/sub 4/ (attempted), W(BH/sub 4/)/ sub 4/ (attempted), /sub 4/NBH/sub 4/, (CH , and ydrides are ing an N/sub H/ comparable to water yet stable at red heat, compounds giving a neutron shield weight less than half that of water, and compounds suitable for use as hightemperature moderators containing large amounts of hydrogen. (auth)

• Research Organization: Metal Hydrides Inc., Beverly, Mass.
• NSA Number: NSA-16-008713
• OSTI ID: 4817764
• Report Number(s): NEPA-1841
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM HYDRIDES
BARIUM COMPOUNDS
BENZENE
BIBLIOGRAPHY
BOROHYDRIDES
CALCIUM ALLOYS
CALCIUM CARBIDES
CALCIUM FLUORIDES
CALCIUM HYDRIDES
CALCIUM NITRIDES
CHEMISTRY
DECOMPOSITION
DENSITY
ETHYL RADICALS
HIGH TEMPERATURE
HYDRIDES
HYDROGEN
IRON HYDRIDES
LITHIUM ALLOYS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HYDRIDES
METHYL RADICALS
MIXING
MODERATORS
NICKEL HYDRIDES
PHASE DIAGRAMS
PREPARATION
PRESSURE
SHIELDING
SODIUM ALLOYS
SODIUM FLUORIDES
SODIUM HYDRIDES
SODIUM HYDROXIDES
STRONTIUM ALLOYS
THORIUM ALLOYS
THORIUM COMPOUNDS
TITANIUM ALLOYS
TITANIUM COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN HYDRIDES
URANIUM ALLOYS