Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles

Liqiong An; Akihiko Ito; Takashi Goto

doi:10.1016/j.jeurceramsoc.2011.11.023

Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles

Liqiong An, Akihiko Ito, Takashi Goto

Materials Processing and Characterization Division

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

71 Citations (Scopus)

Abstract

Transparent yttria (Y ₂O ₃) bodies were fabricated by spark plasma sintering, and the effects of the sintering temperature on relative density, microstructure, and the optical and mechanical properties of Y ₂O ₃ bodies were investigated. Fully dense Y ₂O ₃ bodies were obtained at sintering temperatures 1473-1873K. The average grain size was 0.24-0.32μm at 1473-1573K, and steadily increased to 1.97μm with an increase in temperature to 1823K. The highest transmittance was obtained in the Y ₂O ₃ body sintered at 1573K and annealed at 1323K, showing 81.7% (99% of the theoretical value) at a wavelength of 2000nm.

Original language	English
Pages (from-to)	1035-1040
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2011.11.023
Publication status	Published - 2012 May

Keywords

Grain growth
Optical property
Sintering
Spark plasma sintering
Y O

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2011.11.023

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title = "Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles",

abstract = "Transparent yttria (Y 2O 3) bodies were fabricated by spark plasma sintering, and the effects of the sintering temperature on relative density, microstructure, and the optical and mechanical properties of Y 2O 3 bodies were investigated. Fully dense Y 2O 3 bodies were obtained at sintering temperatures 1473-1873K. The average grain size was 0.24-0.32μm at 1473-1573K, and steadily increased to 1.97μm with an increase in temperature to 1823K. The highest transmittance was obtained in the Y 2O 3 body sintered at 1573K and annealed at 1323K, showing 81.7% (99% of the theoretical value) at a wavelength of 2000nm.",

keywords = "Grain growth, Optical property, Sintering, Spark plasma sintering, Y O",

author = "Liqiong An and Akihiko Ito and Takashi Goto",

note = "Funding Information: This research was supported in part by the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists . It was also supported in part by the Global COE Program of Materials Integration, Tohoku University .",

year = "2012",

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doi = "10.1016/j.jeurceramsoc.2011.11.023",

language = "English",

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journal = "Journal of the European Ceramic Society",

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T1 - Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles

AU - An, Liqiong

AU - Ito, Akihiko

AU - Goto, Takashi

N1 - Funding Information: This research was supported in part by the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists . It was also supported in part by the Global COE Program of Materials Integration, Tohoku University .

PY - 2012/5

Y1 - 2012/5

N2 - Transparent yttria (Y 2O 3) bodies were fabricated by spark plasma sintering, and the effects of the sintering temperature on relative density, microstructure, and the optical and mechanical properties of Y 2O 3 bodies were investigated. Fully dense Y 2O 3 bodies were obtained at sintering temperatures 1473-1873K. The average grain size was 0.24-0.32μm at 1473-1573K, and steadily increased to 1.97μm with an increase in temperature to 1823K. The highest transmittance was obtained in the Y 2O 3 body sintered at 1573K and annealed at 1323K, showing 81.7% (99% of the theoretical value) at a wavelength of 2000nm.

AB - Transparent yttria (Y 2O 3) bodies were fabricated by spark plasma sintering, and the effects of the sintering temperature on relative density, microstructure, and the optical and mechanical properties of Y 2O 3 bodies were investigated. Fully dense Y 2O 3 bodies were obtained at sintering temperatures 1473-1873K. The average grain size was 0.24-0.32μm at 1473-1573K, and steadily increased to 1.97μm with an increase in temperature to 1823K. The highest transmittance was obtained in the Y 2O 3 body sintered at 1573K and annealed at 1323K, showing 81.7% (99% of the theoretical value) at a wavelength of 2000nm.

KW - Grain growth

KW - Optical property

KW - Sintering

KW - Spark plasma sintering

KW - Y O

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Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles

Abstract

Keywords

ASJC Scopus subject areas

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