Aluminum composite castings incorporating used and virgin foundry sand as particle reinforcements

M. A. Belger, P. K. Rohatgi, Nikhil Gupta

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


Incorporating virgin and used sand from foundries into aluminum castings serves as a means toward recycling waste sand, reducing the cost and improving selected mechanical properties of castings. The present research differs from other published studies in this field because higher volume percentages of finer silica particles are incorporated in Al-alloys in the virgin and used state. Stir mixing is used to incorporate up to 20 vol% of sand and squeeze casting can be used to incorporate above 50 vol% of sand. SEM and XRD show some of the silica in the sand is converted to Al 2O 3, leading to higher hardness, stiffness and abrasion resistance in the castings.

Original languageEnglish (US)
Title of host publicationSolidification Processing of Metal Matrix Composites - Rohatgi Honorary Symposium
Number of pages10
StatePublished - 2006
Event2006 TMS Annual Meeting - San Antonio, TX, United States
Duration: Mar 12 2006Mar 16 2006

Publication series

NameTMS Annual Meeting


Other2006 TMS Annual Meeting
Country/TerritoryUnited States
CitySan Antonio, TX


  • Aluminum matrix composite
  • Foundry sand
  • Microstructure
  • Silica

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys


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