Specific Heat Measurements of Pd-based Alloy in the Liquid State by the Heat-Flux Type DSC with Triple Cells

Abstract

The specific heat values of liquid Pd₄₀Cu₃₀Ni₁₀P₂₀, Pd₄₀Ni₄₀P₂₀ and Pd₄₀Cu₄₀P₂₀ alloys which are known to show excellent glass forming ability have been measured in the temperature range between 973 and 1123 K by the heat-flux type DSC with triple cells. The uncertainty of the specific heat values obtained with the DSC was estimated to be ±7% at most by measuring the specific heat of pure silver. The specific heat values for liquid Pd₄₀Cu₃₀Ni₁₀P₂₀, Pd₄₀Ni₄₀P₂₀ and Pd₄₀Cu₄₀P₂₀ alloys are given as follows. (unit: C_p: Jg^-1K^-1, T : K)
C_{pPd40Cu30Ni10P20} = −2.45×10^-4T +0.739 973≤T ≤1123
C_pPd40Ni40P20 = −2.53×10^-4T +0.727 1023≤T ≤1123
C_pPd40Cu40P20 = −4.18×10^-4T +0.828 973≤T ≤1123