Effect of the UO<sub>2</sub> Powder Characteristic Changes by Dynamic Milling on the Density

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doi:2004.41.8.588

J. Korean Ceram. Soc. > Volume 41(8); 2004 > Article

Journal of the Korean Ceramic Society 2004;41(8): 588.
doi: https://doi.org/10.4191/kcers.2004.41.8.588

Dynamic Milling에 의한 UO₂2분말 특성 변화가 밀도에 미치는 영향

김동주, 나상호¹, 김연구¹, 이영우¹, 김용수

한양대학교 원자력공학과
¹한국원자력 연구소 미래형원자로연료개발

Effect of the UO₂ Powder Characteristic Changes by Dynamic Milling on the Density

ABSTRACT

Effect of the UO$_2$ powder characteristic changes by dynamic milling method on the density was investigated. particle size decreased and its shape was changed from irregular to round form with increasing milling time (0∼8 h), while its specific surface area and O/U ratio increased. It was shown that the sintered density decreased, while green density increased with these powder characteristic changes. It could be considered that this decrement was affected by increased O/U ratio of the UO$_2$ powder during dynamic milling.ﾖ⨀ḕ倀ༀ㘲㠮ㄵ㬶㈷⸱㈳㬅K䍄乍츗ጊ᐀Ѐ㘲㜻Ԁ䭃䑎䶹ᜓੇ6㈰㬅K䍄乍ꐗᘍ餀܀㘲㜮〵㬅K䍄乍

Key words: Uranium dioxide, Mill Dynamic milling, Sintered density, Powder preparation, O/U ratio