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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27139


    Title: EFFECTS OF CLUSTERING IN BINARY COMPOSITES - RANDOM FRACTALS
    Authors: CHANG,CY;KUO,LC;HUI,PM
    Contributors: 機械工程學系
    Keywords: FAR-INFRARED ABSORPTION;SMALL METALLIC PARTICLES;OPTICAL-PROPERTIES;AC RESPONSE;PERCOLATION-THRESHOLD;INSULATOR COMPOSITES;2 DIMENSIONS;AGGREGATION;CONDUCTION;NETWORKS
    Date: 1992
    Issue Date: 2010-06-29 18:08:45 (UTC+8)
    Publisher: 中央大學
    Abstract: The effects of random-fractal clustering on the electromagnetic properties of two-dimensional binary composites at low frequencies are studied within a random-admittance-network model consisting of metallic and insulating bonds. The diffusion-limited cluster-cluster aggregation model is used for fractal-cluster formation. The effective admittance of the random network is calculated using the Y-DELTA transformation algorithm. The real part of the effective admittance per metallic bond, which is proportional to the absorption coefficient of a dilute composite, is calculated at different states of the aggregation process. As particles join together to form clusters and clusters join together to form larger ones, the absorption coefficient gradually increases and reaches its highest value when all the particles aggregate into a single cluster. Results are compared to those obtained within a differential effective-medium approximation.
    Relation: PHYSICAL REVIEW B
    Appears in Collections:[機械工程研究所] 期刊論文

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