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.

Original language	English
Article number	012034
Journal	IOP Conference Series: Materials Science and Engineering
Volume	156
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/156/1/012034
Publication status	Published - 8 Nov 2016

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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10.1088/1757-899X/156/1/012034

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Matrenin, S. V., Zenin, B. S., & Tayukin, R. V. (2016). Sintering oxide ceramics based on AI₂O₃ and ZrO₂, activated by MgO, TiO₂ and SiO₂ additives. IOP Conference Series: Materials Science and Engineering, 156(1), [012034]. https://doi.org/10.1088/1757-899X/156/1/012034

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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.",

author = "Matrenin, {S. V.} and Zenin, {B. S.} and Tayukin, {R. V.}",

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T1 - Sintering oxide ceramics based on AI2O3 and ZrO2, activated by MgO, TiO2 and SiO2 additives

AU - Matrenin, S. V.

AU - Zenin, B. S.

AU - Tayukin, R. V.

PY - 2016/11/8

Y1 - 2016/11/8

N2 - 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.

AB - 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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