Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
217136 | The Journal of Chemical Thermodynamics | 2009 | 7 Pages |
Abstract
The low-temperature heat capacity of NiAl2O4 and CoAl2O4 was measured between T = (4 and 400) K and thermodynamic functions were derived from the results. The measured heat-capacity curves show sharp anomalies peaking at around T = 7.5 K for NiAl2O4 and at T = 9 K for CoAl2O4. The exact cause of these anomalies is unknown. From our results, we suggest a standard entropy for NiAl2O4 at T = 298.15 K of (97.1 ± 0.2) J · mol−1 · K−1 and for CoAl2O4 of (100.3 ± 0.2) J · mol−1 · K−1.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
S. Klemme, J.C. van Miltenburg,