Simultaneous Measurements of Heat Capacity, Electrical Resistivity and Hemispherical Total Emittance by a Pulse Heating Technique: Zirconium, 1500 to 2100 K.

Abstract

Simultaneous measurements of heat capacity, electrical resistivity and hemispherical total emittance of zirconium in the temperature range 1500 to 2100 K by a subsecond duration, pulse heating technique are described. The results are expressed by the relations: $C_p=36.65-1.435\times {10}^{-2}T+6.624\times {10}^{-6}{T}^2$ $\rho =87.95+1.946\times {10}^{-2}T$ $ϵ=0.2031+6.362\times {10}^{-5}T$ where C _p is in J · mol^-1 · K^-1, ρ is in 10^-8 Ω · m, and T is in K. Estimated inaccuracies of the measured properties are: 3 percent for heat capacity, 2 percent for electrical resistivity and 5 percent for hemispherical total emittance.