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Formation of intermetallic compounds during the sintering of zirconium–iron powders compact

Published online by Cambridge University Press:  31 January 2011

M. M. Stupel ,
B. Z. Weiss  and
M. Bamberger
M. M. Stupel
Affiliation:
Department of Materials Engineering, Technion, Haifa 32000, Israel
B. Z. Weiss
Affiliation:
Department of Materials Engineering, Technion, Haifa 32000, Israel
M. Bamberger
Affiliation:
Department of Materials Engineering, Technion, Haifa 32000, Israel
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Abstract

The sintering process at 840°C and at 925°C, of Zr-7.2 wt. % Fe was studied by room-temperature Mössbauer spectroscopy, x-ray diffractometry, and scanning electron microscopy. According to phase analysis, most of the αFe phase disappeared after 20 h of sintering at 840°C and after 4 h at 925°C. During the sintering, small quantities of the intermetallic compound ZrFe2 as an intermediate phase were observed clearly by the Mössbauer technique and very weakly by x-ray diffractometry. The relationship among the relative quantities of αFe, ZrFe2, and Zr3Fe phases was determined. The change in density as a function of sintering time was measured, and the results were explained on the basis of the different sintering stages and phase transformations.

Type
Articles
Information
Journal of Materials Research , Volume 3 , Issue 2 , April 1988 , pp. 219 - 225
Copyright
Copyright © Materials Research Society 1988

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