A Dilatometric Study of Sintering of Composite Ceramics Manufactured from Ultrafine Zro2(Y)-Al2O3 Powders Under Different Thermal-Temporal Firing Conditions

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Abstract

Using dilatometry, kinetic principles of sintering of composite ZrO2(Y)-Al2O3 ceramic material made from ultrafine powders synthesized at the Siberian Chemical Integrated Works are investigated. It is shown that under heating conditions, sintering of the composite ceramics under study occurs within a few stages that are closely related to the structural-phase transformations taking place in the composite powder mixture. At the firing temperatures T{cyrillic} > 1500 S{cyrillic} and during long isothermal times, negative phenomena develop in the ceramic material, which give rise to its undesired dilatation and cracking in the course of cooling.

Original languageEnglish
Pages (from-to)411-415
Number of pages5
JournalRussian Physics Journal
Volume57
Issue number3
DOIs
Publication statusPublished - 1 Jan 2014

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sintering
ceramics
composite materials
dilatometry
phase transformations
cooling
heating
kinetics
temperature

Keywords

  • composite ceramics
  • dilatometry
  • ultrafine powders
  • zirconium ceramics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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title = "A Dilatometric Study of Sintering of Composite Ceramics Manufactured from Ultrafine Zro2(Y)-Al2O3 Powders Under Different Thermal-Temporal Firing Conditions",
abstract = "Using dilatometry, kinetic principles of sintering of composite ZrO2(Y)-Al2O3 ceramic material made from ultrafine powders synthesized at the Siberian Chemical Integrated Works are investigated. It is shown that under heating conditions, sintering of the composite ceramics under study occurs within a few stages that are closely related to the structural-phase transformations taking place in the composite powder mixture. At the firing temperatures T{cyrillic} > 1500 S{cyrillic} and during long isothermal times, negative phenomena develop in the ceramic material, which give rise to its undesired dilatation and cracking in the course of cooling.",
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author = "Surzhikov, {Anatoly Petrovich} and Frangulyan, {T. S.} and Ghyngazov, {S. A.} and Vasiliev, {I. P.}",
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T1 - A Dilatometric Study of Sintering of Composite Ceramics Manufactured from Ultrafine Zro2(Y)-Al2O3 Powders Under Different Thermal-Temporal Firing Conditions

AU - Surzhikov, Anatoly Petrovich

AU - Frangulyan, T. S.

AU - Ghyngazov, S. A.

AU - Vasiliev, I. P.

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AB - Using dilatometry, kinetic principles of sintering of composite ZrO2(Y)-Al2O3 ceramic material made from ultrafine powders synthesized at the Siberian Chemical Integrated Works are investigated. It is shown that under heating conditions, sintering of the composite ceramics under study occurs within a few stages that are closely related to the structural-phase transformations taking place in the composite powder mixture. At the firing temperatures T{cyrillic} > 1500 S{cyrillic} and during long isothermal times, negative phenomena develop in the ceramic material, which give rise to its undesired dilatation and cracking in the course of cooling.

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