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Etude radiocristallographique des transformations d'ordre de type α désordre<‐> I ordre dans les alliages ternaires or cuivre nickel et l'alliage binaire de composition remarquable AuCu 3
Author(s) -
Gantois M.
Publication year - 1968
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889868005479
Subject(s) - short range order , stoichiometry , materials science , phase diagram , crystallography , nickel , phase (matter) , thermodynamics , chemistry , physics , metallurgy , organic chemistry
The study of the scattering outside the Bragg reflexions shows no local order in the ordered phase I of alloys such as Au (50 at. %) Cu (46 at. %) Ni (4 at. %) even for the smallest degree of long range order. The modulation of the scattering appears only with the presence of short range order in the disordered α phase. There is evidence of a two‐phase region on the equilibrium diagram at the AuCu 3 stoichiometric composition.