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

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  • Nishi Tsuyoshi
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Shibata Hiroyuki
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Ohta Hiromichi
    Department of Materials Science, Ibaraki University
  • Nishiyama Nobuyuki
    R & D Institute of Metals and Composites for Future Industries (RIMCOF)
  • Inoue Akihisa
    Institute for Materials Research, Tohoku University
  • Waseda Yoshio
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

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  • ３つのセルを有する熱流束型ＤＳＣを用いたＰｄ基合金融体の比熱測定
  • 3ツ ノ セル オ ユウスル ネツ リュウソクガタ DSC オ モチイタ Pdキゴウキンユウタイ ノ ヒネツ ソクテイ

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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: Cp: Jg-1K-1, T : K)<BR>CpPd<SUB>40Cu30Ni10P20</SUB> = −2.45×10-4T +0.739 973≤T ≤1123<BR>CpPd<SUB>40Ni40P20</SUB> = −2.53×10-4T +0.727 1023≤T ≤1123<BR>CpPd<SUB>40Cu40P20</SUB> = −4.18×10-4T +0.828 973≤T ≤1123

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