Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 4, Pages 1411-1414Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.12.024
Keywords
Ceramics; Composites; Structural materials; Mechanical properties
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The present work focuses on studying the effect of nano TiO2 (0.0-25 mass%) on the sintering behavior and mechanical properties of alumina/zirconia ceramic composites. Al2O3-ZrO2-TiO2 oxides mixture. was sintered at 1600 degrees C to obtain the desired composites. The sinterability and the technological properties of these ceramic composites, i.e. the sintering parameters and microhardness as well as thermal shock resistance were investigated. Moreover, phase composition and microstructure of the sintered bodies were examined using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). The results revealed that nano TiO2 is a beneficial component for alumina/zirconia ceramic composites. The batch containing 20 mass% TiO2 exhibited the highest sintering and mechanical properties as well as resistance to thermal shock. The obtained microstructure exhibited high compacted ceramic matrix composites. (C) 2012 Elsevier Ltd. All rights reserved.
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