Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis and Mechanical Properties of Nano Laminating $Cr_2AlC$ using $CrC_x/Al$ Powder Mixtures

  • Han, Jae-Ho (Division of Materials Science and Engineering, Hanyang Univ.) ;
  • Park, Sang-Whan (Multifunctional Ceramics Research Center, KIST) ;
  • Kim, Young-Do (Division of Materials Science and Engineering, Hanyang Univ.)
  • Published : 2006.09.24
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Abstract

[ $Cr_2AlC$ ] was synthesized by a reactive hot pressing of $CrC_x(x=0.5)$ and Al powder mixture used as starting materials at the temperature range of $1200^{\circ}C{\sim}1400^{\circ}C$ under 25 MPa in Ar atmosphere. Fully dense $Cr_2AlC$ with high purity was synthesized by hot pressing $CrC_x$ and Al powder mixture at the temperature as low as $1200^{\circ}C$. The average grain size of synthesized bulk $Cr_2AlC$ was varied in the range of $10-100{\mu}m$ depending on hot pressing temperatures. The maximum flexural strength of synthesized bulk $Cr_2AlC$ exceeded 600 MPa.

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