Spark plasma sintering of alumina nanopowders produced by electrical explosion of wires

Vladimir An, Alexey Khasanov, Charles de Izarra

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Abstract

Alumina nanopowders produced by electrical explosion of wires were sintered using the spark plasma sintering technique. The results of XRD analysis show that the main phase in the compacted nanopowders is α-Al2O3. According to the SEM observations, the sintered alumina nanopowder consists of micron-sized faceted grains and nano-sized necked grains. The increase in sintering temperature resulted in a higher density of the sintered powders: from 78.44 to 98.21 % of theoretical density.

Original languageEnglish
Article number581
JournalSpringerPlus
Volume4
Issue number1
DOIs
Publication statusPublished - 1 Dec 2015

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Keywords

  • Alumina nanopowders
  • Electrical explosion of wires
  • Spark plasma sintering

ASJC Scopus subject areas

  • General

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