Journal
CORROSION SCIENCE
Volume 64, Issue -, Pages 55-63Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.07.002
Keywords
Ceramic matrix composites; SEM; Oxidation; Internal oxidation; Selective oxidation
Funding
- DST/NRF Centre of Excellence in strong materials, University of the Witwatersrand
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Thermal stability of cubic boron nitride (cBN)-TiC cutting tool material in air was analyzed using TGA and oxidation tests in a muffle furnace within the temperature range 550-1100 degrees C for a holding time of 60 min. A scanning electron microscope equipped with an energy dispersive X-ray spectroscopy analysis system was particularly used for the characterization of the oxidation scales obtained thereafter. The significance of the results obtained was discussed in terms of oxidation kinetics law, oxidation mechanisms as well as variation of constitution and morphology of the oxidation scale with temperature, keeping focus on the machining context. (C) 2012 Elsevier Ltd. All rights reserved.
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