| Flux법에 의한 알파 알루미나 판상체의 마이크로파 합성 |
| 박성수, 김준호, 김성완1, 이성환1, 박재현1, 박희찬1 |
부경대학교 화학공학부
1부산대학교 무기재료공학과 |
| Microwave Synthesis of Alpha Alumina Platelets Using Flux Method |
| Seong-Soo Park, Jun-Ho Kim, Sung-Wan Kim1, Sung-Hwan Lee1, Jae-Hyun Park1, Hee-Chan Park1 |
Division of Chemical Engineering, Pukyung National University
1Department of Inorganic Materials Engineering, Pusan National University |
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| ABSTRACT |
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${alpha}-Al_2O_3$ platelets were synthesized by microwave heating the two different powder mixtures of $Al_2(SO_4)_3+2Na_2SO_4$ and ${gamma}-Al_2O_3+2Na_2SO_4$ using flux method. DTA-TG, XRD and SEM were used to investigate the effect of microwave on the formation of ${alpha}-Al_2O_3$ platelets. In the case of the mixture of $Al_2(SO_4)_3+2Na_2SO_4$, the microwave heated sample was ${alpha}-Al_2O_3$ platelets composed of aggregates with smaller particle size compared to the conventionally heated sample. In the case of the mixture of ${gamma}-Al_2O_3+2Na_2SO_4$, the temperature to form ${alpha}-Al_2O_3$ platelets by the microwave heating was lower than that by the conventional heating and the morphology of the microwave heated sample was similar to that of the conventionally heated sample except that the microwave heated sample had smaller particle size compared to the conventionally heated sample. |
| Key words:
Microwave, Alpha alumina platelets, Flux, Synthesis |
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