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Journal of the Korean Ceramic Society 1991;28(8): 647. |
| AlN 분말합성에 있어서 LiF와 BaF$_2$ 첨가효과 |
| 최병현, 이창송1, 신태수, 이종민 |
국립공원시험원 도자기시험소
1(주)원진 기술연구소 |
| Effect of LiF and BaF2 Addition on Synthesis of AlN Powder |
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| ABSTRACT |
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In order to synthesize fine AlN powder by the direct nitridation of Aluminum metal power added LiF and BaF2 as additives was heated at 150$0^{circ}C$ for 3 hrs. in nitrogen gas with flow rate of 20 mι/sec. Additives are promoted the nitridation by prevented the aggromerate of powders when 3% LiF and 2% BaF2 were added to Al metal powder. Rate of nitridation was about 100% and average size of AlN powders were very fine such as 0.3 ${mu}{textrm}{m}$. Specific surface area of synthesized AlN powder was 3.95$m^2$/g and also O2 and N2 contents were 2.595% and 33.25%, respectively. |
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