Nanocrystalline solid solutions of Cu/Co and other novel nanomaterials

A. S. Edelstein, V. G. Harris, D. Rolison, J. H. Perepezko, David Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A brief review will be given of the preparation, synthesis and properties of the Cu/Co system. The special case of the synthesis of nanocrystalline Cu .80Co .20 by precipitation and reduction of hydroxides is discussed in more detail. It was found that the lattice constant of nanocrystalline Cu .80Co .20, determined from x-ray diffraction measurements, approximately fits Vegard's Law and the average nearest neighbor distance from both the Cu and Co atoms, determined from EXAFS measurements, is shifted from their bulk values. Samples given the minimum heat treatment needed to reduce the hydroxides contained Co-rich regions. Heat treatments cause the Co to segregate preferentially onto the surface of the Cu crystals. The presence of the Co delays the oxidation of the Cu surfaces.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsE.P. George, R. Gotthardt, K. Otsuka, S. Trolier-McKinstry, M. Wun-Fogle
PublisherMaterials Research Society
Number of pages11
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1996 MRS Fall Symposium - Boston, MA, USA
Duration: Dec 2 1996Dec 5 1996


OtherProceedings of the 1996 MRS Fall Symposium
CityBoston, MA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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