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Structural changes during sintering of powder of the metastable alloy Al-5% Cu prepared by centrifugal atomization of melt

  • Theory and technology of sintering, thermal, and chemicothermal treatment processes
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

The formation of liquid-phase interlayers between particles of rapidly cooled powder of the alloy Al-5% Cu during sintering was studied by the methods of complex thermal analysis and electron-scanning metallography. It was found that fluctuations of the chemical potential which arise as a result of the decomposition of the solid solution and excess grain-boundary energy drive the sintering process. Contact bridges between the particles are formed as a result of extrusion of melt to the particle surface during grain growth.

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Additional information

Physicotechnical Institute, Academy of Sciences of Belarus, Minsk. Translated from Poroshkovaya Metallurgiya, No. 9–10(369), pp. 37–42, September–October, 1993.

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Kuzei, A.M., Laskovnev, A.P. & Lyskova, Y.V. Structural changes during sintering of powder of the metastable alloy Al-5% Cu prepared by centrifugal atomization of melt. Powder Metall Met Ceram 32, 781–785 (1994). https://doi.org/10.1007/BF00560316

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  • DOI: https://doi.org/10.1007/BF00560316

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