SPECIFIC HEAT AND KAUZMANN TEMPERATURE OF PtNiP ALLOY

Acta Metall Sin

1997, Vol. 33

Issue (6): 660-666 DOI:

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SPECIFIC HEAT AND KAUZMANN TEMPERATURE OF PtNiP ALLOY

JIANG Qing;XU Xiaoya; Li Jianchen (Jilin University of Technology; Changchun130025)

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JIANG Qing;XU Xiaoya; Li Jianchen (Jilin University of Technology; Changchun130025). SPECIFIC HEAT AND KAUZMANN TEMPERATURE OF PtNiP ALLOY. Acta Metall Sin, 1997, 33(6): 660-666.

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Abstract The Kauzmann temperature and the reverse Kauzmann temperature of thePt69.0Ni9.6P21.4 alloy are determined by use of the measured specific heat functions and thecorresponding entropy functions of the alloy. The obtained Kauzmann temperature is consistent to that calculated by Vogel-Fulcher law and by the melting points of the components ofthe alloy. During the measurements of the specific heat of the undercooled liquid, differentheating rates are utilized to enlarge the measuring temperature range nearby the glass transition temperature. Thus the reliability of the thermodynamic function of the undercooled liquid is increased. The possibility for the overheating of the crystal is studied by producing oxide films on the surface of the crystalline specimen.

Key words: Pt_(69.0)Ni_(9.6)P_(21.4) alloy specific heat Kauzmann temperature

Received: 18 June 1997

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1997/V33/I6/660

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