HEAT CAPACITIES OF Fe_(40) Ni_(40) B_(20) GLASSY ALLOY MEASURED BY ENTHALPY METHOD

Acta Metallurgica Sinica (English Letters) ›› 1995, Vol. 8 ›› Issue (1): 23-28.

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HEAT CAPACITIES OF Fe_(40) Ni_(40) B_(20) GLASSY ALLOY MEASURED BY ENTHALPY METHOD

JIANG Qing; ZHAO Ming; LI Jianchen (Jilin University of Technology, Changchun, China Manuscript received 26 December, 1994)

Received:1995-02-25 Revised:1995-02-25 Online:1995-02-25 Published:2009-10-10

Abstract

Abstract: The heat capacities (C_p) ofglassy and crystalline Fe_(40)Ni_(40)B_(20) alloy have been measured by means ofdifferential scanning calorimeter(DSC). A larger C_p value at the glass transition temperature (T_g) can be obtained. The reproducible C_p values ofrelaxed glass at certain heating rate are lower than that ofas quenched glass below 500 K, and are much higher at T_g than that of the crystal. The heating rate affects C_p values of the glass. At last, C_p val ues ofthe undercooled liquid are estimated.

Key words: heat capacity, glass transition, undercooled liquid, Fe_(40)Ni_(40)B_(20) alloy

JIANG Qing; ZHAO Ming; LI Jianchen (Jilin University of Technology, Changchun, China Manuscript received 26 December, 1994). HEAT CAPACITIES OF Fe_(40) Ni_(40) B_(20) GLASSY ALLOY MEASURED BY ENTHALPY METHOD[J]. Acta Metallurgica Sinica (English Letters), 1995, 8(1): 23-28.

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HEAT CAPACITIES OF Fe_(40) Ni_(40) B_(20) GLASSY ALLOY MEASURED BY ENTHALPY METHOD

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