Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Microstructural Aspects during the Preparation of Y3Al5O12 by Combustion Synthesis and Temperature Field Simulation
Yuepeng SongJiangtao LiYixiang ChenWenwen JiChong Soo LeeHyoung Seop Kim
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2011 Volume 52 Issue 4 Pages 685-690


The combustion front quenching method (CFQM) combined with the temperature field simulated using the finite element method was used to investigate the microstructural aspects of the fabrication of transparent Y3Al5O12 via combustion synthesis. The simulated results indicate that there are three regions corresponding with the temperature distribution whose microstructural aspects were studied. The composite mixtures of the products cannot be separated depending only on their gravities. The filamentous profile of aluminum along with many aluminous intermediate products are detected by XRD, SEM and EDS analysis in the preheat region, which indicates that the heat-transfer can affect the mass-transfer process and the subsequent reaction process. The microstructural aspects show that the combustion reaction of the Al/NiO/Y2O3 powder mixture was initiated by the melting of Al particles.

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© 2011 The Japan Institute of Metals and Materials
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