Effect of group III A and IV A element substitutions (M) on the hydrogen dissociation pressures of LaNi_5-xM_x hydrides

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6061068

Mendelsohn, M. H.; Gruen, D. M.

Ternary modifications of the hydrogen absorbing alloy LaNi/sub 5/ have been found to have a large effect on the hydrogen dissociation pressure of the corresponding hydride. A series of alloys LaNi/sub 4/ /sub 6/M/sub 0/ /sub 4/ (M = Al, Ga, In, Sn) were studied to establish the effect of various group III A and IV A element substitutions on the dissociation pressures of their corresponding hydrides. Results were extended to include the alloys LaNi/sub 4/ /sub 6/Si/sub 0/ /sub 4/, LaNi/sub 4/ /sub 6/Ge/sub 0/ /sub 4/ and LaNi/sub 4/ /sub 4/B/sub 0/ /sub 6/. Further dissociation pressure measurements were made on the alloy LaNi/sub 4/ /sub 6/Ga/sub 0/ /sub 4/ as well as two additional indium alloys. The data obtaned for the three indium alloys appear to follow a linear correlation of lnP or ..delta..G with the amount of substituted element as has been previously observed for Al.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6061068
• Report Number(s): CONF-790641--7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION
ALLOYS
BORON ALLOYS
CRYOGENIC FLUIDS
DATA FORMS
DISSOCIATION ENERGY
ELEMENTS
ENERGY
FLUIDS
GALLIUM ALLOYS
GERMANIUM ALLOYS
HYDROGEN
INDIUM ALLOYS
INTERMETALLIC COMPOUNDS
LANTHANUM ALLOYS
NICKEL ALLOYS
NONMETALS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SILICON ALLOYS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TABLES
THERMODYNAMIC PROPERTIES