Investigation of Low-Temperature Aging of Porous Composite Ceramic in the System ZrO2(Y)-Al2O3: Investigation of low-temperature aging of porous composite ceramic in the system zro<inf>2</inf>(Y)–al2o<inf>3</inf>

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Abstract

Phase transformations in the samples of composite ceramic in the system ZrO2(Y)–Al2O3, which are distinguished by the value of the porosity and the content of yttrium as a stabilizing impurity, are studied as a function of their storage time at room temperature. It is shown that a reduction of the molar content of yttrium oxide in the zirconium phase of the porous composite results in a sharp acceleration of the its low-temperature aging. The phase transitions are studied by means of dilatometry in an aged composite in the temperature range 30 – 600°C.

Original languageEnglish
Pages (from-to)373-376
Number of pages4
JournalGlass and Ceramics (English translation of Steklo i Keramika)
Volume71
Issue number9-10
DOIs
Publication statusPublished - 2015

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Keywords

  • Composite ceramic
  • Dilatometry
  • Low-temperature aging
  • Phase transformations
  • Zirconium dioxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Mechanics of Materials

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