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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Formation of Rod-like $Al_2TiO_5$ via Mechanical Activation Followed by Thermal Processing

  • Chen, Xiaohu (College of Materials Science and Engineering, Huaqiao University) ;
  • Chen, Xiaomin (College of Materials Science and Engineering, Huaqiao University) ;
  • Zhao, Huang (College of Materials Science and Engineering, Huaqiao University) ;
  • Wud, Jihuai (College of Materials Science and Engineering, Huaqiao University)
  • Published : 2006.09.24
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Abstract

A QM-ISP-4 Planetary Mill was employed to activate mechanically the mixtures of anatase and corundum at room temperature for different times. The milled powder mixtures were then sintered at $1300^{\circ}C$ for 1 h. The XRD results showed that the milled powder mixtures were completely transformed into $Al_2TiO_5$ after sintering, except the mixtures milled for 5 and 10 hours. The SEM observations showed the typical morphology of rod-like $Al_2TiO_5$ vary in the range: widths from 0.6 to $1.2\;{\mu}m$, and lengths from 3.0 to $6.0\;{\mu}m$. The rod-like $Al_2TiO_5$ formation was attributed to the positive effects caused by the mechanical activation.

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