On the Temperature Dependence of the Heat of Formation of the Compound AgMG

Item

Title
On the Temperature Dependence of the Heat of Formation of the Compound AgMG
Date
1968
Index Abstract
Not Available
Photo Quality
Not Needed
Creator
Jena, A. K.
Bever, M. B.
Corporate Author
Massachusetts Institute of Technology
Laboratory
Office of Naval Research
Date Issued
1968-07-22
Extent
12
NTRL Accession Number
AD673044
Identifier
AD0673044
Access Rights
NA
Distribution Classification
1
Contract
Norr 3963-(19)
DoD Project
NR 031 706
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Abstract
Heats of formation at 78, 195 and 273 degrees K of the compound AgMg containing 50.1 at. Pct Mg have been measured by metal solution calorimetry. The relative partial gram-atomic enthalpy of silver in liquid tin-rich solutions at infinite dilution has also been measured. The temperature coefficient of the heat of formation is negative and appreciable near 78 degrees K, but with increasing temperature it dereases gradually to a small value near room temperature. This is consistent with the reported high-temperature heat contents of AgMg, Ag and Mg. It is suggested that such behavior of the temperature dependence of the heat of formation can be explained on the basis of the contributions from lattice heat capacities.
Report Availability
Full text available
Provenance
National Technical Information Service (NTIS)
Type
report
Format
1 online resource
Media
AD0673044.pdf