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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 |
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| ABSTRACT |
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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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