Deformation behavior of zirconia-based porous ceramics

Abstract

It has been studied a porous ceramics obtained from nanocrystalline ZrO₂ powders. Samples were obtained by pressing and sintering of compacts, the porosity of ceramic samples was from 20 to 80%. The average grain size in the studied ceramics increased from 0.4 to 4 microns with increasing sintering temperature and duration of isothermal holding from 1400 to 1600 °C and 1 to 5 hours, respectively. It was shown that the «stress-strain» diagrams on the initial stage of deformation has a nonlinear behavior with high parabolic factor of strain-stress curves. It has been shown that fracture of the materials was observed from the elastic area and has a rod-like and cellular-like parts in its structure.

Original language	English
Article number	012004
Journal	IOP Conference Series: Materials Science and Engineering
Volume	47
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/47/1/012004
Publication status	Published - 1 Dec 2013
Event	2nd International Conference on Competitive Materials and Technological Processes, IC-CMTP 2012 - Miskolc-Lillafured, Hungary Duration: 8 Oct 2012 → 12 Oct 2012

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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title = "Deformation behavior of zirconia-based porous ceramics",

abstract = "It has been studied a porous ceramics obtained from nanocrystalline ZrO2 powders. Samples were obtained by pressing and sintering of compacts, the porosity of ceramic samples was from 20 to 80%. The average grain size in the studied ceramics increased from 0.4 to 4 microns with increasing sintering temperature and duration of isothermal holding from 1400 to 1600 °C and 1 to 5 hours, respectively. It was shown that the «stress-strain» diagrams on the initial stage of deformation has a nonlinear behavior with high parabolic factor of strain-stress curves. It has been shown that fracture of the materials was observed from the elastic area and has a rod-like and cellular-like parts in its structure.",

author = "Kalatur, {E. S.} and Kozlova, {A. V.} and Buyakova, {S. P.} and Kulkov, {S. N.}",

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AU - Kalatur, E. S.

AU - Kozlova, A. V.

AU - Buyakova, S. P.

AU - Kulkov, S. N.

PY - 2013/12/1

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N2 - It has been studied a porous ceramics obtained from nanocrystalline ZrO2 powders. Samples were obtained by pressing and sintering of compacts, the porosity of ceramic samples was from 20 to 80%. The average grain size in the studied ceramics increased from 0.4 to 4 microns with increasing sintering temperature and duration of isothermal holding from 1400 to 1600 °C and 1 to 5 hours, respectively. It was shown that the «stress-strain» diagrams on the initial stage of deformation has a nonlinear behavior with high parabolic factor of strain-stress curves. It has been shown that fracture of the materials was observed from the elastic area and has a rod-like and cellular-like parts in its structure.

AB - It has been studied a porous ceramics obtained from nanocrystalline ZrO2 powders. Samples were obtained by pressing and sintering of compacts, the porosity of ceramic samples was from 20 to 80%. The average grain size in the studied ceramics increased from 0.4 to 4 microns with increasing sintering temperature and duration of isothermal holding from 1400 to 1600 °C and 1 to 5 hours, respectively. It was shown that the «stress-strain» diagrams on the initial stage of deformation has a nonlinear behavior with high parabolic factor of strain-stress curves. It has been shown that fracture of the materials was observed from the elastic area and has a rod-like and cellular-like parts in its structure.

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Deformation behavior of zirconia-based porous ceramics

Abstract

ASJC Scopus subject areas

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