Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering

Liqiong An; Akihiko Ito; Takashi Goto

doi:10.1016/j.jeurceramsoc.2011.03.014

Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering

Liqiong An, Akihiko Ito, Takashi Goto

Materials Processing and Characterization Division

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

38 Citations (Scopus)

Abstract

Transparent lutetium oxide (Lu₂O₃) body was prepared by spark plasma sintering using a two-step pressure profile combined with a low heating rate. The effects of pre-load pressures from 10 to 100MPa and heating rates from 0.03 to 1.67Ks^-1 on the microstructures and optical properties were investigated. With increasing pre-load pressures from 10 to 100MPa, the grains became smaller with a narrower distribution, whereas the transmittance showed maxima at 30MPa. The average grain size slightly increased from 0.67 to 0.86μm as the heating rate increased from 0.03 to 1.67Ks^-1, while the transmittance decreased. Transmittances of 60% at 550nm and 79% at 2000nm were obtained under a pre-load pressure of 30MPa at a heating rate of 0.17Ks^-1.

Original language	English
Pages (from-to)	1597-1602
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	31
Issue number	9
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2011.03.014
Publication status	Published - 2011 Aug

Keywords

LuO
Lutetium oxide
Spark plasma sintering
Transparent

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering",

abstract = "Transparent lutetium oxide (Lu2O3) body was prepared by spark plasma sintering using a two-step pressure profile combined with a low heating rate. The effects of pre-load pressures from 10 to 100MPa and heating rates from 0.03 to 1.67Ks-1 on the microstructures and optical properties were investigated. With increasing pre-load pressures from 10 to 100MPa, the grains became smaller with a narrower distribution, whereas the transmittance showed maxima at 30MPa. The average grain size slightly increased from 0.67 to 0.86μm as the heating rate increased from 0.03 to 1.67Ks-1, while the transmittance decreased. Transmittances of 60% at 550nm and 79% at 2000nm were obtained under a pre-load pressure of 30MPa at a heating rate of 0.17Ks-1.",

keywords = "LuO, Lutetium oxide, Spark plasma sintering, Transparent",

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 . This research was also supported in part by the Global COE Program of the Materials Integration, Tohoku University . Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2011",

month = aug,

doi = "10.1016/j.jeurceramsoc.2011.03.014",

language = "English",

volume = "31",

pages = "1597--1602",

journal = "Journal of the European Ceramic Society",

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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 . This research was also supported in part by the Global COE Program of the Materials Integration, Tohoku University . Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/8

Y1 - 2011/8

N2 - Transparent lutetium oxide (Lu2O3) body was prepared by spark plasma sintering using a two-step pressure profile combined with a low heating rate. The effects of pre-load pressures from 10 to 100MPa and heating rates from 0.03 to 1.67Ks-1 on the microstructures and optical properties were investigated. With increasing pre-load pressures from 10 to 100MPa, the grains became smaller with a narrower distribution, whereas the transmittance showed maxima at 30MPa. The average grain size slightly increased from 0.67 to 0.86μm as the heating rate increased from 0.03 to 1.67Ks-1, while the transmittance decreased. Transmittances of 60% at 550nm and 79% at 2000nm were obtained under a pre-load pressure of 30MPa at a heating rate of 0.17Ks-1.

AB - Transparent lutetium oxide (Lu2O3) body was prepared by spark plasma sintering using a two-step pressure profile combined with a low heating rate. The effects of pre-load pressures from 10 to 100MPa and heating rates from 0.03 to 1.67Ks-1 on the microstructures and optical properties were investigated. With increasing pre-load pressures from 10 to 100MPa, the grains became smaller with a narrower distribution, whereas the transmittance showed maxima at 30MPa. The average grain size slightly increased from 0.67 to 0.86μm as the heating rate increased from 0.03 to 1.67Ks-1, while the transmittance decreased. Transmittances of 60% at 550nm and 79% at 2000nm were obtained under a pre-load pressure of 30MPa at a heating rate of 0.17Ks-1.

KW - LuO

KW - Lutetium oxide

KW - Spark plasma sintering

KW - Transparent

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