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 | Zendy

Gantois M. | Zendy

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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.

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