Order-disorder transitions in iron-nickel /50%-50%/ alloys from iron meteorites as studied by Moessbauer spectroscopy

Details Order-disorder transitions in iron-nickel /50%-50%/ alloys from iron meteorites as studied by Moessbauer spectroscopy Order-disorder transitions in iron-nickel /50%-50%/ alloys from iron meteorites as studied by Moessbauer spectroscopy

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phrvl..48.1054l&link_type=abstract

Physical Review Letters, vol. 48, Apr. 12, 1982, p. 1054-1056. Research supported by the Statens Naturvidenskabelige Forskningsr

Physics

12

Iron Alloys, Iron Meteorites, Mossbauer Effect, Nickel Alloys, Order-Disorder Transformations, Cooling, Hyperfine Structure, Transition Temperature

Scientific paper

Iron meteorites contain an ordered FeNi (50%-50%) alloy. By study of the disordering process above the transition temperature of approximately 593 K with Moessbauer spectroscopy, it is shown that the hyperfine parameters reflect the degree of order. This depends on the cooling rate of the meteorites. As the hyperfine parameters, and therefore the degree of order, vary from meteorite to meteorite, the ordered FeNi alloy contains information on the relative cooling rates of meteorites.

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