Enthalpy of mixing of liquid Ni-Zr and Cu-Ni-Zr alloys

Witusiewicz, V.T.; Sommer, F.

doi:10.1007/s11663-000-0046-7

Cited by 30 publications

(27 citation statements)

References 10 publications

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“…Consequently, the nose of the TTT curve is shifted significantly to the longer time. The present results suggest strongly that the 74at.%Zr [19] 76at.%Zr [29] Present work (76at.%Zr)…”

Section: The Driving Force Of the Crystallizationsupporting

confidence: 73%

“…19) In the liquid, it is assumed that n Ni 2 Zr 1 moles of the associate Ni 2 Zr 1 is in equilibrium with n Ni and n Zr moles of free Ni and Zr atoms, respectively.…”

Section: Associated Solution Modelmentioning

confidence: 99%

“…The mixing enthalpies in the liquid have been studied at 1565 K, 19) 1784 K, 22) 1838 K, 22) 1916 K, 23) 1963 K, 24) and 2270 K. 23) At low temperatures, the formation enthalpy of amorphous alloys was measured by Turchanin et al, 25) Spit et al 26) and Henaf et al 27) where there measurements are not in agreement. The formation enthalpy reported by Truchanin et al 25) is a more negative result and in this case the amorphous phase would be more stable than the intermetallic compounds.…”

Section: Experimental Datamentioning

confidence: 99%

“…Heat capacities of the liquid and amorphous phases have been measured by Witusiewicz and Sommer,19) and by Ohsaka and Trinh. 29) There are numerous measurements of both latent heats of crystallization from the undercooled liquid.…”

Section: Experimental Datamentioning

confidence: 99%

“…In the present assessment, the driving force starts to deviate from the linear relationship at around 1300 K and gradually decreases, due to the formation of the associate as the temperature decreases. 1565K [19] 1740K [22] 1838K [22] 1916K [23] 1963K [24] 2270K [23] Present work 1565K 2270K 5)…”

Section: The Driving Force Of the Crystallizationmentioning

confidence: 99%

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Thermodynamic Modeling of the Undercooled Liquid in the Ni–Zr System

et al. 2005

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Using thermodynamic data obtained over a wide range of temperatures, a thermodynamic assessment of the Ni-Zr system was carried out. The associated solution model was applied to describe the short range ordering in the liquid, and the glass transition was treated as a second order transition, using the Hillert-Jarl functions. The driving force of crystallization, and the time-temperature-transformation (TTT) curves were estimated from the optimized parameter set, and compared with experimental data and the results of previous thermodynamic assessments. Taking into account the low temperature thermodynamic data, the calculated driving force was found to have decreased compared to the previous assessments. Consequently, the nose of the TTT curve was shifted to higher times.

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“…Consequently, the nose of the TTT curve is shifted significantly to the longer time. The present results suggest strongly that the 74at.%Zr [19] 76at.%Zr [29] Present work (76at.%Zr)…”

Section: The Driving Force Of the Crystallizationsupporting

confidence: 73%

“…19) In the liquid, it is assumed that n Ni 2 Zr 1 moles of the associate Ni 2 Zr 1 is in equilibrium with n Ni and n Zr moles of free Ni and Zr atoms, respectively.…”

Section: Associated Solution Modelmentioning

confidence: 99%