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Mechanical alloying of immiscible elements: Experimental results on Ag-Cu and Co-Cu

TitoloMechanical alloying of immiscible elements: Experimental results on Ag-Cu and Co-Cu
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione1997
AutoriDelogu, F., Pintore M., Enzo S., Cardellini F., Contini V., Montone Amelia, and Rosato V.
RivistaPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume76
Paginazione651-662
ISSN13642812
Abstract

Equimolar solid solutions of Ag-Cu and Co-Cu were prepared by mechanical milling of the elements. The structure and the thermodynamic properties of the resulting phases were analysed by X-ray diffraction, scanning electron micro-scopy and differential scanning calorimetry. Large mixing enthalpies (ΔH = 6·8 kJ g-atom-1 and ΔH = 4·8 kJ g-atom-1 for Ag-Cu and Co-Cu respectively) were measured in the alloyed phases. It is clear that the solid solution forms through a process of grain refinement down to the nanometre scale and is assisted by an atomic-scale dissolution. The possible role played by coherent interfaces in substantially increasing the energy of the solid solutions is discussed.
Note

cited By 14
URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0342406211&partnerID=40&md5=6fced5eb49a1e420a6ff968437ab0a7e
Citation KeyDelogu1997651