Effect of Al2O3 particle size on compressive behavior of Al composites

Young Ik Seo, Kyung Ho Min, Young Jung Lee, Kyu Hwan Lee, Tohru Sekino, Young Do Kim

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


Compressive behavior of 7xxx series Al metal matrix composite (MMC) powders with different ceramic contents and different particle size were investigated. As a starting powder of the experiments, ceramic contents of each starting powder were 5 and 10 wt.% and ceramic particle size of starting powder were 20 and 100 μm, respectively. And 7xxx Al blended powder was used for comparison. The powders were uniaxially cold-compacted using cylindrical die with a compacting pressure 250 MPa and sintered at 620°C in a dry N2 atmosphere for 60 min with heating rate of 20°C/min. In case of heat treatment condition, sintered parts were solution treated at 475°C and aged at 175°C. To reveal the effect of Al2O3 particle content and particle size on the mechanical properties of composites, compression test were conducted with constant strain rate of 1×10 -3/s using sub-size cylindrical samples of 9 mm diameter. Compression test was performed 5 times and its average value was used. Then fractography analysis was conducted using scanning electron microscope.

Original languageEnglish
Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
PublisherTrans Tech Publications Ltd
Number of pages4
EditionPART 2
ISBN (Print)3908451310, 9783908451310
Publication statusPublished - 2007
EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
Duration: 2006 Sep 102006 Sep 14

Publication series

NameSolid State Phenomena
NumberPART 2
ISSN (Print)1012-0394


OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
Country/TerritoryKorea, Republic of


  • Compressive behavior
  • Fractography
  • MMC

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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