Kinetics of competitive phase growth in Cu-Ni-Sn system

L. N. Paritskaya; V. V. Bogdanov; Yu Kaganovskii; W. Lojkowski

doi:10.4028/www.scientific.net/ddf.237-240.849

Kinetics of competitive phase growth in Cu-Ni-Sn system

L. N. Paritskaya, V. V. Bogdanov, Yu Kaganovskii, W. Lojkowski

Department of Physics

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Abstract

Kinetics of phase growth in multiphase Cu-Sn and Ni-Sn systems and effect of third substitutive component (Ni or Cu respectively) were studied experimentally in temperature range 160-220°C and analyzed theoretically. Kinetic equations for calculation of diffusion coefficients in growing competitive phases were obtained. It was found that the substitutive components accelerated phase growth lowering the values of diffusion activation energy and pre-exponential factor. As a result the growth rates of competitive phases Cu₆Sn₅ and Cu₃Sn in Cu-Sn system changed with substitutive Ni so, that only one (CuNi)₆Sn₅ phase survived whereas (CuNi)₃Sn phase was suppressed. Obtained results are discussed in terms of higher disordering caused by substitutive components in ternary phases as compared with binary ones.

Original language	English
Pages (from-to)	849-854
Number of pages	6
Journal	Defect and Diffusion Forum
Volume	237-240
Issue number	PART 2
DOIs	https://doi.org/10.4028/www.scientific.net/ddf.237-240.849
State	Published - 2005

Keywords

Accelerating effect
Arrhenius equation
Competitive phase growth
Diffusion kinetics
Substitutive component

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abstract = "Kinetics of phase growth in multiphase Cu-Sn and Ni-Sn systems and effect of third substitutive component (Ni or Cu respectively) were studied experimentally in temperature range 160-220°C and analyzed theoretically. Kinetic equations for calculation of diffusion coefficients in growing competitive phases were obtained. It was found that the substitutive components accelerated phase growth lowering the values of diffusion activation energy and pre-exponential factor. As a result the growth rates of competitive phases Cu6Sn5 and Cu3Sn in Cu-Sn system changed with substitutive Ni so, that only one (CuNi)6Sn5 phase survived whereas (CuNi)3Sn phase was suppressed. Obtained results are discussed in terms of higher disordering caused by substitutive components in ternary phases as compared with binary ones.",

keywords = "Accelerating effect, Arrhenius equation, Competitive phase growth, Diffusion kinetics, Substitutive component",

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AU - Paritskaya, L. N.

AU - Bogdanov, V. V.

AU - Kaganovskii, Yu

AU - Lojkowski, W.

PY - 2005

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N2 - Kinetics of phase growth in multiphase Cu-Sn and Ni-Sn systems and effect of third substitutive component (Ni or Cu respectively) were studied experimentally in temperature range 160-220°C and analyzed theoretically. Kinetic equations for calculation of diffusion coefficients in growing competitive phases were obtained. It was found that the substitutive components accelerated phase growth lowering the values of diffusion activation energy and pre-exponential factor. As a result the growth rates of competitive phases Cu6Sn5 and Cu3Sn in Cu-Sn system changed with substitutive Ni so, that only one (CuNi)6Sn5 phase survived whereas (CuNi)3Sn phase was suppressed. Obtained results are discussed in terms of higher disordering caused by substitutive components in ternary phases as compared with binary ones.

AB - Kinetics of phase growth in multiphase Cu-Sn and Ni-Sn systems and effect of third substitutive component (Ni or Cu respectively) were studied experimentally in temperature range 160-220°C and analyzed theoretically. Kinetic equations for calculation of diffusion coefficients in growing competitive phases were obtained. It was found that the substitutive components accelerated phase growth lowering the values of diffusion activation energy and pre-exponential factor. As a result the growth rates of competitive phases Cu6Sn5 and Cu3Sn in Cu-Sn system changed with substitutive Ni so, that only one (CuNi)6Sn5 phase survived whereas (CuNi)3Sn phase was suppressed. Obtained results are discussed in terms of higher disordering caused by substitutive components in ternary phases as compared with binary ones.

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KW - Arrhenius equation

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KW - Diffusion kinetics

KW - Substitutive component

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Kinetics of competitive phase growth in Cu-Ni-Sn system

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