The criteria for optimization of spark plasma sintering of transparent MgAl2O4 ceramics

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Abstract

In this work, criteria for optimization of the Spark Plasma Sintering (SPS) regimes to manufacture transparent MgAl2O4 ceramics have been suggested. These criteria are not derived from the microstructural characteristics of the sintered samples - density or grain/pore size. In our approach, the criteria for optimization are the coefficients in the equation describing the normalized optical density. After the choice of the criteria was justified, they were used for obtaining transparent MgAl2O4 ceramics with improved optical properties by SPS at optimal temperatures, pressures and heating rates. The suggested criteria were determined for representative sets of MgAl2O4 ceramic specimens obtained by SPS using different processing parameters.

Original languageEnglish
Pages (from-to)513-518
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume65
Issue number8
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • MgAl2O4 spinel
  • Optical properties
  • Optimization criteria
  • Spark Plasma Sintering
  • Transparent ceramics

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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