Abdul Halim, A. A. A. and Sudin, I. and Wan Ali, W. F. F. and Yasak, R. and Md. Sirat, R. and Othman, M. A. and Abdullah, N. S. and Ahmad, Z. A. (2020) Formation of yttria aluminium garnet by microwave sintering. In: 3rd International Conference on Advanced Materials Characterization Techniques, AMCT 2019, 23-24 July 2019, Kangar, Perlis.
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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.1...
Abstract
Polycrystalline yttrium aluminium garnet (YAG) ceramic has been prepared using microwave sintering. Micron-sized of Al2O3 and Y2O3 powders were mixed through in house fabrication mixer for 24 hours before calcined at 1100o C The calcined powder were compacted using hydraulic hand press before microwave sintered at various sintering temperatures for 6 hours. The effect of sintering parameters on the microstructures was observed at variousand holding times. X-ray diffraction (XRD) analysis was carried out to determine and quantify phase transformation with respect to these parameters. It was found that three phases namely YAM (Y4Al2O9), YAP (YAlO3) and YAG (Y3Al5O12) have been identified. While both grain sizes and density of sintered samples were found increased from 1.4 μm to 2.46 μm and 90% to 98%, respectively. Therefore, microwave sintering has a significant effect on the densification behavior of YAG.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | densification, grain size, microwave sintering |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 93770 |
| Deposited By: | Narimah Nawil |
| Deposited On: | 31 Dec 2021 08:44 |
| Last Modified: | 31 Dec 2021 08:44 |
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