Grain‐Size Dependence of Thermal‐Shock Resistance of Yttria‐Doped Tetragonal Zirconia Polycrystals

Masayuki Ishitsuka; Tsugio Sato; Tadashi Endo; Masahiko Shimada; Hideo Ohno; Naoki Igawa; Takanori Nagasaki

doi:10.1111/j.1151-2916.1990.tb07625.x

Grain‐Size Dependence of Thermal‐Shock Resistance of Yttria‐Doped Tetragonal Zirconia Polycrystals

Masayuki Ishitsuka, Tsugio Sato, Tadashi Endo, Masahiko Shimada, Hideo Ohno, Naoki Igawa, Takanori Nagasaki

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Thermal‐shock fracture behavior of yttria‐doped tetragonal zirconia polycrystals (Y‐TZP) of various grain sizes was evaluated by the quenching method using water as the quenching solvent. The tetragonal‐to‐monoclinic phase transformation behavior of Y‐TZP around cracks introduced by thermal stress was investigated by using Raman microprobe spectroscopy. The critical quenching temperature difference (ΔT_c) of Y‐TZP ceramics increased from 250° to 425°C with increasing grain size of zirconia from 0.4 to 3.0 μm, while the fracture strength decreased from 900 to 680 MPa. The improvement of ΔT_c of Y‐TZP with increasing grain size of zirconia corresponded with the quantity of tetragonal‐to‐monoclinic phase transformation around cracks introduced by thermal stress.

Original language	English
Pages (from-to)	2523-2525
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	73
Issue number	8
DOIs	https://doi.org/10.1111/j.1151-2916.1990.tb07625.x
Publication status	Published - 1990 Jan 1

Keywords

fracture
grain size
quenching
thermal shock
yttriastabilized tetragonal polycrystals

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1990.tb07625.x

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title = "Grain‐Size Dependence of Thermal‐Shock Resistance of Yttria‐Doped Tetragonal Zirconia Polycrystals",

abstract = "Thermal‐shock fracture behavior of yttria‐doped tetragonal zirconia polycrystals (Y‐TZP) of various grain sizes was evaluated by the quenching method using water as the quenching solvent. The tetragonal‐to‐monoclinic phase transformation behavior of Y‐TZP around cracks introduced by thermal stress was investigated by using Raman microprobe spectroscopy. The critical quenching temperature difference (ΔTc) of Y‐TZP ceramics increased from 250° to 425°C with increasing grain size of zirconia from 0.4 to 3.0 μm, while the fracture strength decreased from 900 to 680 MPa. The improvement of ΔTc of Y‐TZP with increasing grain size of zirconia corresponded with the quantity of tetragonal‐to‐monoclinic phase transformation around cracks introduced by thermal stress.",

keywords = "fracture, grain size, quenching, thermal shock, yttriastabilized tetragonal polycrystals",

author = "Masayuki Ishitsuka and Tsugio Sato and Tadashi Endo and Masahiko Shimada and Hideo Ohno and Naoki Igawa and Takanori Nagasaki",

year = "1990",

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doi = "10.1111/j.1151-2916.1990.tb07625.x",

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T1 - Grain‐Size Dependence of Thermal‐Shock Resistance of Yttria‐Doped Tetragonal Zirconia Polycrystals

AU - Ishitsuka, Masayuki

AU - Sato, Tsugio

AU - Endo, Tadashi

AU - Shimada, Masahiko

AU - Ohno, Hideo

AU - Igawa, Naoki

AU - Nagasaki, Takanori

PY - 1990/1/1

Y1 - 1990/1/1

N2 - Thermal‐shock fracture behavior of yttria‐doped tetragonal zirconia polycrystals (Y‐TZP) of various grain sizes was evaluated by the quenching method using water as the quenching solvent. The tetragonal‐to‐monoclinic phase transformation behavior of Y‐TZP around cracks introduced by thermal stress was investigated by using Raman microprobe spectroscopy. The critical quenching temperature difference (ΔTc) of Y‐TZP ceramics increased from 250° to 425°C with increasing grain size of zirconia from 0.4 to 3.0 μm, while the fracture strength decreased from 900 to 680 MPa. The improvement of ΔTc of Y‐TZP with increasing grain size of zirconia corresponded with the quantity of tetragonal‐to‐monoclinic phase transformation around cracks introduced by thermal stress.

AB - Thermal‐shock fracture behavior of yttria‐doped tetragonal zirconia polycrystals (Y‐TZP) of various grain sizes was evaluated by the quenching method using water as the quenching solvent. The tetragonal‐to‐monoclinic phase transformation behavior of Y‐TZP around cracks introduced by thermal stress was investigated by using Raman microprobe spectroscopy. The critical quenching temperature difference (ΔTc) of Y‐TZP ceramics increased from 250° to 425°C with increasing grain size of zirconia from 0.4 to 3.0 μm, while the fracture strength decreased from 900 to 680 MPa. The improvement of ΔTc of Y‐TZP with increasing grain size of zirconia corresponded with the quantity of tetragonal‐to‐monoclinic phase transformation around cracks introduced by thermal stress.

KW - fracture

KW - grain size

KW - quenching

KW - thermal shock

KW - yttriastabilized tetragonal polycrystals

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ER -

Grain‐Size Dependence of Thermal‐Shock Resistance of Yttria‐Doped Tetragonal Zirconia Polycrystals

Abstract

Keywords

ASJC Scopus subject areas

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