Wettability of carbon fiber and aluminum borate whisker hybrid preform by molten magnesium

H. Uozumi, K. Kobayashi, K. Nakanishi, K. Shinozaki, C. Masuda, M. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Aluminum borate whisker (9Al2O3 · 2B 2O3: AlBO) is relatively low cost and has high strength. Carbon fiber (CF) has high thermal conductivity and high temperature strength. Therefore, CF and AlBO hybrid reinforced magnesium alloy composites would be lightweight and expected to have superior high strength and high thermal conductivity. It is known that wettability between ceramic fiber and metal is important factor to fabricate metal matrix composites. Previously, poor wettability of graphite/magnesium system and good wettability of graphite/magnesium system have been reported. However, the initial contact angle between CF+AlBO hybrid preform and molten magnesium was not obvious. Moreover, whether magnesium infiltrate into hybrid preform spontaneously or not has not been clarified. In this study, criteria of infiltration of molten magnesium into the hybrid preform were examined. As a result, the initial contact angle between the hybrid preform and molten magnesium followed with Cassie's rule of mixture approximately. Molten magnesium infiltrated into CF+AlBO hybrid preform spontaneously. Moreover, all the estimated threshold pressure to infiltrate into the preform was negative. This conformed to experimental results.

Original languageEnglish
Title of host publicationSAMPE '07
Subtitle of host publicationM and P - From Coast to Coast and Around the World; Conference Proceedings
Publication statusPublished - 2007 Oct 1
EventSAMPE '07: M and P - From Coast to Coast and Around the World - Baltimore, MD, United States
Duration: 2007 Jun 32007 Jun 7

Publication series

NameInternational SAMPE Symposium and Exhibition (Proceedings)
Volume52
ISSN (Print)0891-0138

Conference

ConferenceSAMPE '07: M and P - From Coast to Coast and Around the World
CountryUnited States
CityBaltimore, MD
Period07/6/307/6/7

Keywords

  • Carbon
  • Metal matrix composites

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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    Uozumi, H., Kobayashi, K., Nakanishi, K., Shinozaki, K., Masuda, C., & Yoshida, M. (2007). Wettability of carbon fiber and aluminum borate whisker hybrid preform by molten magnesium. In SAMPE '07: M and P - From Coast to Coast and Around the World; Conference Proceedings (International SAMPE Symposium and Exhibition (Proceedings); Vol. 52).