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The Thermal Conductivity of Periodic Particulate Composites as Obtained from a Crystallographic Mode of Filler Packing

School of Applied Mathematics and Physical Sciences, National Technical University of Athens, 5 Heroes of Polytechnion Avenue, 15773 Athens, Greece
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J. Compos. Sci. 2018, 2(4), 71; https://doi.org/10.3390/jcs2040071
Received: 6 November 2018 / Revised: 4 December 2018 / Accepted: 6 December 2018 / Published: 17 December 2018
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Abstract

In this paper, an icosahedral non-body-centered model is presented to simulate the periodic structure of a general class of homogeneous particulate composites, by predicting the particle arrangement. This model yielded three different variations, which correspond to three different deterministic particle configurations. In addition, the concept of a boundary interphase between matrix and inclusions was taken into account. In this framework, the influence of particle vicinity on the thermomechanical properties of the overall material was examined in parallel with the concept of boundary interphase. The simultaneous consideration of these two basic influential factors constitutes the novelty of this work. Next, by the use of this advanced model, the authors derived a closed-form expression to estimate the thermal conductivity of this type of composite. To test the validity of the model, the theoretical predictions arising from the proposed formula were compared with experimental data found in the literature, together with theoretical results obtained from several accurate formulae derived from other workers, and an adequate accordance was observed. View Full-Text
Keywords: particulate composites; periodic structure; particle contiguity; interphase; thermal conductivity particulate composites; periodic structure; particle contiguity; interphase; thermal conductivity
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Venetis, J.; Sideridis, E.P. The Thermal Conductivity of Periodic Particulate Composites as Obtained from a Crystallographic Mode of Filler Packing. J. Compos. Sci. 2018, 2, 71.

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J. Compos. Sci. EISSN 2504-477X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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