Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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A Study on the Viscosity and Surface Tension for Foaming Materials and the Effects of Addition Elements

발포재료(Al)의 점성 및 표면장력과 첨가요소의 영향에 관한 연구

  • 박수한 (경상대학교 ULSFoM-NRL, ReCAPT) ;
  • 김상열 (경상대학교 ULSFoM-NRL, ReCAPT) ;
  • 안득규 (경상대학교 ULSFoM-NRL, ReCAPT) ;
  • 하동인 (경상대학교 ULSFoM-NRL, ReCAPT) ;
  • 조순형 (계명대학교 저공해자동차 부품기술 개발센터) ;
  • 배석천 (계명대학교 저공해자동차 부품기술 개발센터) ;
  • 허보영 (경상대학교 ULSFoM-NRL, ReCAPT)
  • Published : 2002.09.01
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Abstract

Porous Al metal was produced by batch type casting process. In this foaming process, the viscosity and surface tension of molten Al as two most important factors have been investigated in the temperature range of 680-95$0^{\circ}C$ by the ring method and rotational method respectively. The experimental results showed that both the surface tension and viscosity of the melt decreased linearly with increasing temperature. Addition of Ca decreased surface tension, but increased viscosity significantly.

Keywords

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