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Coatings 2017, 7(8), 121; doi:10.3390/coatings7080121

Studies on Preparation and Characterization of Aluminum Nitride-Coated Carbon Fibers and Thermal Conductivity of Epoxy Matrix Composites

1
Multi-Functional Carbon Materials Research Laboratory, Korea Institute of Carbon Convergence Technology, Jeonju 54853, Korea
2
Department of Chemical Engineering, Chonbuk National University, Jeonju 54896, Korea
*
Author to whom correspondence should be addressed.
Received: 10 July 2017 / Revised: 3 August 2017 / Accepted: 7 August 2017 / Published: 10 August 2017
(This article belongs to the Special Issue Carbon-Related Coatings)
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Abstract

In this work; the effects of an aluminum nitride (AlN) ceramic coating on the thermal conductivity of carbon fiber-reinforced composites were studied. AlN were synthesized by a wet-thermal treatment (WTT) method in the presence of copper catalysts. The WTT method was carried out in a horizontal tube furnace at above 1500 °C under an ammonia (NH3) gas atmosphere balanced by a nitrogen using aluminum chloride as a precursor. Copper catalysts pre-doped enhance the interfacial bonding of the AlN with the carbon fiber surfaces. They also help to introduce AlN bonds by interrupting aluminum oxide (Al2O3) formation in combination with oxygen. Scanning electron microscopy (SEM); Transmission electron microscopy (TEM); and X-ray diffraction (XRD) were used to analyze the carbon fiber surfaces and structures at each step (copper-coating step and AlN formation step). In conclusion; we have demonstrated a synthesis route for preparing an AlN coating on the carbon fiber surfaces in the presence of a metallic catalyst. View Full-Text
Keywords: aluminum nitride (AlN); carbon fibers; copper catalyst; composites; thermal conductivity aluminum nitride (AlN); carbon fibers; copper catalyst; composites; thermal conductivity
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Kim, H.-H.; Lee, Y.-S.; Chung, D.C.; Kim, B.-J. Studies on Preparation and Characterization of Aluminum Nitride-Coated Carbon Fibers and Thermal Conductivity of Epoxy Matrix Composites. Coatings 2017, 7, 121.

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