Evolution of the microstructure in nanocrystalline copper electrodeposits during room temperature storage

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    Abstract

    The microstructure evolution in copper electrodeposits at room temperature (self-annealing) was investigated by means of X-ray diffraction analysis and simultaneous measurement of the electrical resistivity as a function of time. In-situ studies were started immediately after electrodeposition and continued with an unprecedented time resolution until stationary values of the recorded data were obtained. Independent of the copper layer thickness, the as-deposited microstructure consisted of nanocrystalline grains with orientation dependent crystallite sizes. Orientation dependent grain growth, crystallographic texture changes by multiple twinning and a decrease of the electrical resistivity occurred as a function of time at room temperature. The kinetics of self-annealing is strongly affected by the layer thickness: the thinner the layer the slower is the microstructure evolution and self-annealing is suppressed completely for a thin layer of 0.4 mu m.
    Original languageEnglish
    JournalZeitschrift für Kristallographie - Crystalline Materials
    Volume2
    Issue numbersuppl. 26
    Pages (from-to)261-266
    ISSN2194-4946
    Publication statusPublished - 2007
    EventEuropean Powder Diffraction Conference 2006 - Geneva, Switzerland
    Duration: 1 Sept 20064 Sept 2006
    Conference number: 10
    http://epdic.ing.unitn.it/html/past-future_events.html

    Conference

    ConferenceEuropean Powder Diffraction Conference 2006
    Number10
    Country/TerritorySwitzerland
    CityGeneva
    Period01/09/200604/09/2006
    Internet address

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