Ashri, M. F. and Rejab, N. A. and Ahmad, Z. A. and Abdullah, N. S. and Badarulzaman, N. A. and Mat, R. A. A. R. and Ali, W. F. F. W. (2019) Densification and grain growth of microwave-sintered yttrium iron garnet. In: International Conference on X-Rays and Related Techniques in Research and Industry 2018, ICXRI 2018, 18-19 Aug 2018, Grand Riverview Hotel Kota Bharu, Kelantan, Malaysia.
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Official URL: https://dx.doi.org/10.1063/1.5089406
Abstract
The presences of unwanted phases such as yttrium iron perovskite (YIP) in yttrium iron garnet (YIG) ceramics have limiting the utilization of YIG in the wireless communication domain. The densification and grain growth of yttrium iron garnet (YIG) were systematically studied to produce highly densified YIG via microwave sintering. The phase present in the sample (to determine the purity) was characterized by using XRD meanwhile VPSEM was used to observe the increment of average grain size either by varying temperature or time. The highest grain size obtained when the sample was being sintered at 1450 °C for 2 hours which is 15.7μm. The highest material density obtained using Archimedes principle was 97.9% of that of theoretical density (ρ theory ). Therefore, the results suggested that a highly densified YIG (ρ theory of ∼98%) could be successfully obtained by sintering the sample for 8 hours at 1420 °C.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | archimedes principle, yttrium iron garnet (YIG) |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Malaysia-Japan International Institute of Technology |
| ID Code: | 89144 |
| Deposited By: | Narimah Nawil |
| Deposited On: | 26 Jan 2021 08:48 |
| Last Modified: | 26 Jan 2021 08:48 |
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