Sintering oxide ceramics based on AI2O3 and ZrO2, activated by MgO, TiO2 and SiO2 additives

S. V. Matrenin, B. S. Zenin, R. V. Tayukin

Research output: Contribution to journalArticle

Abstract

The positive effect of the addition of MgO and TiO2 in an amount of no more than 1 wt. % on sintering and physico-mechanical properties of alumina ceramics is established. Addition of 5% of SiO2 to A12O3 provides the mechanism of liquid phase sintering of ceramics, which leads to increase in its density and strength up to 480 MPa. In ceramic system A12O3 - ZrO2 - Y2O3 highest level of physical and mechanical properties of the composition had a hypereutectic composition 16.6% A12O3 - 76% Z1O2 - 7.4% Y2O3. In this composition two mechanisms of hardening are realized simultaneously, such as transformational hardening by t- m - ZrO2 transition and dispersion strengthening with high-modulus particles of α- A12O3.

Original languageEnglish
Article number012034
JournalIOP Conference Series: Materials Science and Engineering
Volume156
Issue number1
DOIs
Publication statusPublished - 8 Nov 2016

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Oxides
Sintering
Hardening
Chemical analysis
Liquid phase sintering
Mechanical properties
Aluminum Oxide
Alumina
Physical properties
TiO2-SiO2

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

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title = "Sintering oxide ceramics based on AI2O3 and ZrO2, activated by MgO, TiO2 and SiO2 additives",
abstract = "The positive effect of the addition of MgO and TiO2 in an amount of no more than 1 wt. {\%} on sintering and physico-mechanical properties of alumina ceramics is established. Addition of 5{\%} of SiO2 to A12O3 provides the mechanism of liquid phase sintering of ceramics, which leads to increase in its density and strength up to 480 MPa. In ceramic system A12O3 - ZrO2 - Y2O3 highest level of physical and mechanical properties of the composition had a hypereutectic composition 16.6{\%} A12O3 - 76{\%} Z1O2 - 7.4{\%} Y2O3. In this composition two mechanisms of hardening are realized simultaneously, such as transformational hardening by t- m - ZrO2 transition and dispersion strengthening with high-modulus particles of α- A12O3.",
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T1 - Sintering oxide ceramics based on AI2O3 and ZrO2, activated by MgO, TiO2 and SiO2 additives

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AU - Zenin, B. S.

AU - Tayukin, R. V.

PY - 2016/11/8

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