Enthalpy Increment Measurements from 4.5 to 350 K and the Thermodynamic Properties of Titanium Disilicide(cr) to 1700 K

Abstract

Enthalpy increments for titanium disilicide were measured from 4.5 to 350 K with an adiabatic calorimeter. The enthalpy increments were combined with previous differential scanning calorimetry values to 500 K, Kopp's rule estimates for 500-800 K, and previous enthalpy increment measurements for temperatures to 1700 K in order to give the thermodynamic properties of titanium disilicide to 1700 K. Values of the Debye temperature, θ D , and the coefficient for the heat capacity of the conduction electrons, γ el , were determined from the model. Thermodynamic properties for formation from the elements at 298.15 K were also given.