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Thermodynamic Properties of the Al-ni System.

Authors
Schaefer-SC
Source
NTIS: PB 240 092 :15 pages
Link
NIOSHTIC No.
10007576
Abstract
The Bureau of Mines studied thermodynamic properties of al-ni alloys containing 0.54 to 30.04 Atomic percent nickel with the aid of the high-temperature galvanic cell al(1) // al+3 (alcl3 in nacl.Kcl) // al-ni alloy (1 or s). Activities of aluminum and nickel (compared with pure liquid metals as the standard state) show pronounced negative deviation from raoult's law at 1,273 k. The properties ag, agxs, agideal, ag_al, ag_xs.Al, ag_ni, and ag_xsni, have been derived from the experimental data and are summarized in tables and illustrations. At 1,127 k, the thermodynamic stability for the invariant three-phase equilibrium consisting of a saturated liquid, al3ni, and al3ni2 has been uniquely defined by an activity for aluminum of 0.751. A free energy of formation at 1,127 k of -7,940 cal/g-atom was derived for the compound al3ni.
Publication Date
19750101
Document Type
IH; Report of Investigation;
Fiscal Year
1975
NTIS Accession No.
PB-240092
NTIS Price
A03
Identifying No.
RI 7993
NIOSH Division
ALRC;
Source Name
NTIS: PB 240 092
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