Synthesis and characterization of Al-Si3N4 nanocomposites processed by microwave sintering process

2^nd International Conference and Expo on Ceramics & Composite Materials

July 25-26, 2016 Berlin, Germany

R A Shakoor, M Penchal Reddy, F Ubaid, A M A Mohamed and M Gupta

Qatar University, Qatar
Suez University, Egypt
National University of Singapore, Singapore

Scientific Tracks Abstracts: J Material Sci Eng

Abstract :

Significant advancement in the processing technology has enbaled to synthesize homogenous metal matrix nanocomposites having uniformly distributed nanoreinforcements. As a result, remarkable enhnacement in the properties of metal matrix nanocomposites has been claimed. In present work, Si3N4 nanoparticles reinforced aluminium matrix composites (Al/Si3N4) containing different volume fractions (0.3, 0.6, 0.9 and 1.2 vol.%) of Si3N4 were fabricated using microwave sintering process. The Powders of Al and Si3N4 with exact stoichiometry ratios were intimately mixed through high energy ball milling (200 rpm, 2 hours) and were consolidated at room temperature (450 MPa for 2 min). The compacted cylindrical billets (diameter- 30mm) were then sintered (550�°C) using microwave sintering approach. Thereafter, the developed Al-Si3N4 nanocomposites were extruded (350�°C) into rods (diameter-8mm) and their physical, structural, thermal and mechanical properties were investigated. In addition, the effect of Si3N4 volume fraction on the properties of Al/Si3N4 nanocomposites was also studied.

Biography :

R A Shakoor is currently working as an Assistant Professor in the Center for Advanced Materials (CAM), Qatar University, Doha, Qatar. He holds a PhD degree in Materials Engineering. His area of research focuses on the synthesis and characterization of advance materials for various applications. He has been awarded with several academic and professional awards because of his outstanding academic, industrial and research achievements. His research work has been published in high impact factor international journals like JACS, Adv. Functional Mater, etc., with decent number of citations. He likes to share his important findings with local and international research communities.

Email: shakoor@qu.edu.qa