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High-pressure sintering mechanism of yttrium aluminum garnet (Y 3 Al 5 O 12 ) transparent nanoceramics

Scripta Materialia, ISSN: 1359-6462, Vol: 66, Issue: 6, Page: 319-322
2012
  • 48
    Citations
  • 0
    Usage
  • 35
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    48
    • Citation Indexes
      48
  • Captures
    35

Article Description

We propose a sintering mechanism of transparent Y 3 Al 5 O 12 nanoceramics under high pressure. Through analysis of the porosity, grain size and residual stress for the nanostructured YAG compacts prepared at high pressure and modest temperature (HPMT, 2.0–5.0 GPa and 300–500 °C), the nanosintering behavior was systematically investigated. High pressure can initiate the plastic deformation of nanograins to eliminate pores and enhance the local atomic diffusion among grain boundaries, thus producing fine nanostructured and near fully dense transparent YAG bulks.

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