Regularities of Reactive Diffusion and Phase Formation in Ni ― Bi, Ni ― Zn, and Co ― Zn Binary Systems

被引：0

作者：

Vasilii I. Dybkov

机构：

[1] National Academy of Sciences of Ukraine,Institute for Problems of Materials Science

来源：

Powder Metallurgy and Metal Ceramics | 2001年 / 40卷

关键词：

reactive diffusion; intermetallic layers; binary systems; nickel; cobalt; bismuth; zinc;

D O I：

暂无

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学科分类号：

摘要：

Intermetallide layers enriched in bismuth or zinc are the first to grow in the Ni ― Bi, Ni ― Zn, and Co ― Zn reaction pairs. It is not found that high-symmetry phases of equiatomic composition are formed. There is not even a weak correlation between the rate of layer growth and the width of the homogeneity region for these intermetallic compounds. The main factors that determine the formation sequence for the intermetallic layers are the differences in melting point and atomic radius between the components, as well as the crystal structures of the intermetallides. The Kirkendall effect cannot be observed in the growing intermetallic layers. In that case, there is no physical basis for determining integrated diffusion coefficients.

引用

页码：426 / 431

页数：5

共 16 条

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[9] Dybkov V. I.(undefined)Growth of intermetallic layers in the iridium — molybdenum system undefined undefined undefined-undefined
[10] Dybkov V. I.(undefined)undefined undefined undefined undefined-undefined

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