Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Validity of the Sessile Drop Test of the Molten Al-Mg Alloys on SiO2 under Various Atmospheres

분위기에서 Al-Mg합금의 SiO2에 대한 젖음실험의 타당성 고찰

  • Jang, Hyung-Min (Department of Materials Science and Engineering, Korea University) ;
  • Lee, Chang-Myeon (Department of Materials Science and Engineering, Korea University) ;
  • Lee, Joon-Ho (Department of Materials Science and Engineering, Korea University) ;
  • Lee, Jae-Hoon (Advanced Materials Division, Korea Institute of Industrial Technology) ;
  • Lee, Jae-Chul (Department of Materials Science and Engineering, Korea University)
  • 장형민 (고려대학교 신소재공학부) ;
  • 이창면 (고려대학교 신소재공학부) ;
  • 이준호 (고려대학교 신소재공학부) ;
  • 이재훈 (한국생산기술연구원 신소재본부 경량소재팀) ;
  • 이재철 (고려대학교 신소재공학부)
  • Received : 2009.01.09
  • Published : 2009.06.25
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Abstract

The effects that processing atmospheres and alloy composition have on the wetting characteristics of Al-Mg alloys on the $SiO_{2}$ substrate were investigated by measuring the wetting angles. It was observed that the wetting behavior of the Al-Mg alloys on the $SiO_{2}$ substrate vary depending on the Mg content of the alloys and atmospheres. The results showed that the contact angle decreases with increasing Mg content, angle is generally larger in the $N_{2}$ atmosphere than in the Ar atmosphere. We discussed the validity of the results obtained from the wetting test on the basis of recent theories and the results observed from the actual penetration tests.

Keywords

References

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