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Thermal properties of aluminum oxide from 0 to 1200 K

1956; US government; Volume: 57; Issue: 2 Linguagem: Inglês

10.6028/jres.057.008

2376-5305

George T. Furukawa, Thomas B. Douglas, Robert E. McCoskey, D.C. Ginnings,

Thermodynamic and Structural Properties of Metals and Alloys

Accurate meas urements of the heat capacity of a-aluminum ox ide (corundum) from 13 0 to 1,170 0 K nrc d escrib ed.An a diabatic calorimeter was used from 13 0 to 380 0 K and a drop method was used with a Bun se n ice calorimeter from 273 0 to 1, 170 0 K .The res ults a rc co mpa red in t he mnge 273 0 to 380 0 K , wh e re t he two methods overlap .From t he d ata, smoo thed values of t he h eat capacity, enthalpy, entropy, and Gibbs free energy from 0 0 to 1,200 0 K are deriv ed a nd tab ul ated., D eccascd .