Thermodynamic description of the Cu–Ni–Zn system above 600∘C

Miettinen, Jyrki

doi:10.1016/j.calphad.2003.09.002

Cited by 29 publications

(6 citation statements)

References 22 publications

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“…Only c-Ni 5 Zn 21 is observed at the Sn-Zn/Ni interfaces, even though b 1 , c-Ni 5 Zn 21 , and d-NiZn 8 in the Ni-Zn system, 22 and Ni 3 Sn-LT, Ni 3 Sn 2 -LT, and Ni 3 Sn 4 in the Ni-Sn system, 23 are stable at the temperature studied herein. Generally speaking, formation of a new phase during interfacial reactions should depend on not only nucleation but also growth.…”

Section: Formation Of C-ni 5 Zn 21 At the Interfacesmentioning

confidence: 49%

Interfacial Reactions Between Sn-Zn Alloys and Ni Substrates

Zhu

Liu

Wang

et al. 2009

Journal of Elec Materi

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Interfacial reactions between Sn-Zn alloys and Ni substrates after annealing at 463 K have been studied. Only one intermetallic compound (IMC), c-Ni 5 Zn 21 , was observed at the Sn-Zn/Ni interfaces, although other IMC(s) in the Ni-Sn and Ni-Zn system can stably exist at this temperature. Taking into account nucleation along with diffusion kinetics, formation of the reaction product has been reasonably modeled. In addition, growth kinetics for the reaction layer has been quantified. The results indicate that the growth rate of the c-Ni 5 Zn 21 layer increases with Zn content, and that the layer growth obeys a parabolic law with annealing time, implying a diffusion-controlled mechanism.

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Section: Formation Of C-ni 5 Zn 21 At the Interfacesmentioning

confidence: 49%

Interfacial Reactions Between Sn-Zn Alloys and Ni Substrates

Zhu

Liu

Wang

et al. 2009

Journal of Elec Materi

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“…The interaction parameters of the binary systems were taken directly from the literature[ 24 , 32 , 40 ] and are listed in Table 3 . The enthalpy of mixing for the ternary system was treated by a least-squares fit using the following Redlich-Kister-Muggianu polynomial,[ 9 ] which takes into account additional ternary interactions: …”

Section: Resultsmentioning

confidence: 99%

“…The integral enthalpy of mixing was calculated by summarizing the respective reaction enthalpies and dividing by the total molar amount of substance. The respective binary starting value for each section in the ternary system was calculated from the binary literature data[ 24 , 32 , 40 ] using the interaction parameters listed in Table 3 .…”

Section: Methodsmentioning

confidence: 99%

The Enthalpies of Mixing of Liquid Ni-Sn-Zn Alloys

Plevachuk

Yakymovych

Fürtauer

et al. 2014

J. Phase Equilib. Diffus.

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The partial and integral enthalpies of mixing of liquid ternary Ni-Sn-Zn alloys were determined. The system was investigated along two sections xNi/xSn ≈ 1:9, xNi/xSn ≈ 1:6 at 1073 K and along two sections xSn/xZn ≈ 9:1, xSn/xZn ≈ 4:1 at 873 K. The integral enthalpy of mixing at each temperature is described using the Redlich-Kister-Muggianu model for substitutional ternary solutions. In addition, the experimental results were compared with data calculated according to the Toop extrapolation model. The minimum integral enthalpy of approx. −20000 J mol-1 corresponds to the minimum in the constituent binary Ni-Sn system, the maximum of approx. 3000 J mol-1 is equal to the maximum in the binary Sn-Zn system.

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“…Several thermodynamic descriptions are available for the Ni-Zn system [11,16,17,18,19,20,21]. However, the stable ordered intermetallic phase β was not described properly using the commonly accepted order-disorder transition model [13,14] in the earlier thermodynamic descriptions [16,17,18,19,20,21]. Xiong et al [11] re-assessed the Ni-Zn binary system by using a two-sublattice order-disorder transition model to describe the β phase.…”

Section: Application In Binary Ni-zn Systemmentioning

confidence: 99%

On Gibbs Energy for the Metastable bcc_A2 Phase with a Thermal Vacancy in Metals and Alloys

Tang

Zhang

2019

Materials

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An approach was proposed to obtain a reasonable thermodynamic description of a thermal vacancy in the metastable disordered body centered cubic (bcc_A2) phase, which had been consistently ignored in previous thermodynamic assessments. The present approach was first applied to obtain the thermodynamic descriptions for pure metastable bcc Ni and Zn, and then in the binary Ni-Zn system. The thermodynamic descriptions for both the metastable disordered bcc_A2 phase and the stable ordered bcc_B2 β phases in the Ni-Zn binary system were updated based on the corresponding experimental equilibria. With these updated thermodynamic descriptions, several drawbacks, including the multiple solutions for thermal vacancy concentrations and the artificial phase boundaries in previous assessments, can be avoided. Moreover, the calculated phase boundaries and invariant reactions related to the β phase agree well with the experimental data.

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Thermodynamic description of the Cu–Ni–Zn system above 600∘C

Cited by 29 publications

References 22 publications

Interfacial Reactions Between Sn-Zn Alloys and Ni Substrates

Interfacial Reactions Between Sn-Zn Alloys and Ni Substrates

The Enthalpies of Mixing of Liquid Ni-Sn-Zn Alloys

On Gibbs Energy for the Metastable bcc_A2 Phase with a Thermal Vacancy in Metals and Alloys

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