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Heat capacity of aluminum silicon carbide (Al4SiC4) from 5.26 to 1047 K.

Authors
Beyer-RP; Johnson-EA
Source
J Chem Thermodyn 1984 Nov; 16(11):1025-1029
NIOSHTIC No.
10004404
Abstract
One of the goals of the Bureau of Mines is to provide thermodynamic quantities for minerals and related inorganic compounds. As part of this effort, the molar heat capacity of Al4SiC4 was measured by the Bureau from 5.26 to 301.5 K by adiabatic calorimetry and from 347 to 1,047 k by differential scanning calorimetry. The values at t = 298.15 K for cp,m, sm(t)-sm(o) , - gm(t)-hm(0) /t, and hm(t)- hm(0) are 145.07, 107.62, 40.66 J.K-1.Mol-1, and 19.96 Kj.Mol-1, respectively. These properties are also reported from 5 to 2,000 k at convenient temperature intervals. The standard molar enthalpy of formation afhm(Al4SiC4), calculated from Behrens and Rinehart's Knudson-effusion mass-spectrometric results, is -(203.3+/-4.9)Kj.Mol- 1 at 298.15 K.
CODEN
JCTDAF
Publication Date
19841101
Document Type
OP; Journal Article
Fiscal Year
1985
Identifying No.
OP 20-85
Issue of Publication
11
ISSN
0021-9614
NIOSH Division
ALRC
Source Name
The Journal of Chemical Thermodynamics
State
OR
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