The heat capacities and thermodynamic properties of NiAl2O4 and CoAl2O4 measured by adiabatic calorimetry from T=(4 to 400)K

作者: S. Klemme , J.C. van Miltenburg

DOI: 10.1016/J.JCT.2009.01.014

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摘要: Abstract The low-temperature heat capacity of NiAl 2 O 4 and CoAl was measured between T =  (4 400) K thermodynamic functions were derived from the results. heat-capacity curves show sharp anomalies peaking at around  7.5 K for  9 K . exact cause these is unknown. From our results, we suggest a standard entropy  298.15 K (97.1 ± 0.2) J · mol −1  · K (100.3 ± 0.2) J · mol

参考文章(37)
Marcos Zayat, David Levy, Surface Area Study of High Area Cobalt Aluminate Particles Prepared by the Sol-Gel Method Journal of Sol-Gel Science and Technology. ,vol. 25, pp. 201- 206 ,(2002) , 10.1023/A:1020287307107
Hermann Schmalzried, Ionen‐ und Elektronenfehlordnung in CoCr2O4 und CoAl2O4 Berichte der Bunsengesellschaft für physikalische Chemie. ,vol. 67, pp. 93- 96 ,(1963) , 10.1002/BBPC.19630670117
Elizabeth H Arredondo, Jingzhu Hu, Maddury S Somayazulu, Itzhak Halevy, Danut Dragoi, Ersan  st ndag, Alan F Yue, The effect of pressure on the structure of NiAl2O4 Journal of Physics: Condensed Matter. ,vol. 14, pp. 10511- 10516 ,(2002) , 10.1088/0953-8984/14/44/324
S. Klemme, J.C. van Miltenburg, Thermodynamic properties of hercynite (FeAl2O4) based on adiabatic calorimetry at low temperatures American Mineralogist. ,vol. 88, pp. 68- 72 ,(2003) , 10.2138/AM-2003-0108
Stephan Klemme, Hugh St.C. O’Neill, Walter Schnelle, Eberhard Gmelin, The heat capacity of MgCr2O4, FeCr2O4, and Cr2O3at low temperatures and derived thermodynamic properties American Mineralogist. ,vol. 85, pp. 1686- 1693 ,(2000) , 10.2138/AM-2000-11-1212
A. NAVROTSKY, Discussion of “Equilibrium Cation Distribution in NiAl2O4, CuAl2O4, and ZnAl2O4 Spinels” Journal of the American Ceramic Society. ,vol. 56, pp. 106- 107 ,(1973) , 10.1111/J.1151-2916.1973.TB12372.X-I1
J.C.van Miltenburg, G.J.K.van den Berg, M.J.van Bommel, Construction of an adiabatic calorimeter measurements of the molar heat capacity of synthetic sapphire and of n-heptane The Journal of Chemical Thermodynamics. ,vol. 19, pp. 1129- 1137 ,(1987) , 10.1016/0021-9614(87)90050-4
Stephan Klemme, Martin Ahrens, Low-temperature heat capacities of MgAl 2 O 4 and spinels of the MgCr 2 O 4 -MgAl 2 O 4 solid solution pacific rim conference on multimedia. ,vol. 34, pp. 59- 72 ,(2007) , 10.1007/S00269-006-0128-4
S. Klemme, J. C. van Miltenburg, Thermodynamic properties of nickel chromite (NiCr2O4) based on adiabatic calorimetry at low temperatures. Physics and Chemistry of Minerals. ,vol. 29, pp. 663- 667 ,(2002) , 10.1007/S00269-002-0280-4
T. N. Irvine, CHROMIAN SPINEL AS A PETROGENETIC INDICATOR: PART 2. PETROLOGIC APPLICATIONS Canadian Journal of Earth Sciences. ,vol. 4, pp. 71- 103 ,(1967) , 10.1139/E67-004