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J. Korean Ceram. Soc. > Volume 35(7); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(7): 685.
AI$_2$O$_3$ Preform에 대한 용융 Al 합금의 자발적 침윤 기구
이동윤, 박상환, 이동복1
한국과학기술연구원 복합기능세라믹스연구센터
1성균관대학교 공과대학 금속공학과
The Spontaneous Infiltration Mechanism of Molten Al Alloy to AI$_2$O$_3$ Preform
ABSTRACT
The wetting behavior and the characteristic of spontaneous infiltration of pure Al and Al-(Si)-Mg alloys on {{{{ { {Al }_{ 2} O}_{3 } }} in vacuum argon and nitrogen atmosphere were investigated to find out the spontaneous in-filtration mechanism. The wetting of molten Al and Al alloys on {{{{ { {Al }_{ 2} O}_{3 } }} was only possible in cacuum at-mosphere but the sponataneous infiltration of molten Al-(Si)-Mg alloys was successfully made on {{{{ { {Al }_{ 2} O}_{3 } }} pre-form in nitrogen atmoshpere. The difference of wettability and spontaneous infiltration of molten Al and Al alloys on {{{{ { {Al }_{ 2} O}_{3 } }} were found to be related to formation of the Mg-N compound coated layer on {{{{ { {Al }_{ 2} O}_{3 } }} particles which was believd to increase wettability of molten Al alloys on {{{{ { {Al }_{ 2} O}_{3 }
Key words: Wetting behavior, Wettability, Spontaneous infiltration mechanism, Mg-N, compound
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