Formation of a Cr3+-rich luminescent thin phase along a grain boundary of α-Al2O3

Yuki Kezuka; Eita Tochigi; Naoya Shibata; Chiwon Moon; Shingo Kanehira; Kazuyuki Hirao; Yuichi Ikuhara

doi:10.2109/jcersj2.119.620

Formation of a Cr³⁺-rich luminescent thin phase along a grain boundary of α-Al₂O₃

Yuki Kezuka, Eita Tochigi, Naoya Shibata, Chiwon Moon, Shingo Kanehira, Kazuyuki Hirao, Yuichi Ikuhara

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

1 Citation (Scopus)

Abstract

An α-Al₂O₃ bicrystal doped with Cr³+ was fabricated by diffusion bonding at high temperatures. It was found that a ruby phase with approximately 200nm thickness was formed along the grain boundary. This thin phase shows Cr³⁺:Al₂O ₃-induced luminescence, confirmed by confocal micro-luminescence spectroscopy.

Original language	English
Pages (from-to)	620-622
Number of pages	3
Journal	Journal of the Ceramic Society of Japan
Volume	119
Issue number	1391
DOIs	https://doi.org/10.2109/jcersj2.119.620
Publication status	Published - 2011 Jul

Keywords

Alumina
Bicrystal
Grain boundary
Luminescence
Ruby
Transmission electron microscopy

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Formation of a Cr3+-rich luminescent thin phase along a grain boundary of α-Al2O3",

abstract = "An α-Al2O3 bicrystal doped with Cr3+ was fabricated by diffusion bonding at high temperatures. It was found that a ruby phase with approximately 200nm thickness was formed along the grain boundary. This thin phase shows Cr3+:Al2O 3-induced luminescence, confirmed by confocal micro-luminescence spectroscopy.",

keywords = "Alumina, Bicrystal, Grain boundary, Luminescence, Ruby, Transmission electron microscopy",

author = "Yuki Kezuka and Eita Tochigi and Naoya Shibata and Chiwon Moon and Shingo Kanehira and Kazuyuki Hirao and Yuichi Ikuhara",

year = "2011",

month = jul,

doi = "10.2109/jcersj2.119.620",

language = "English",

volume = "119",

pages = "620--622",

journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",

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publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

number = "1391",

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TY - JOUR

T1 - Formation of a Cr3+-rich luminescent thin phase along a grain boundary of α-Al2O3

AU - Kezuka, Yuki

AU - Tochigi, Eita

AU - Shibata, Naoya

AU - Moon, Chiwon

AU - Kanehira, Shingo

AU - Hirao, Kazuyuki

AU - Ikuhara, Yuichi

PY - 2011/7

Y1 - 2011/7

N2 - An α-Al2O3 bicrystal doped with Cr3+ was fabricated by diffusion bonding at high temperatures. It was found that a ruby phase with approximately 200nm thickness was formed along the grain boundary. This thin phase shows Cr3+:Al2O 3-induced luminescence, confirmed by confocal micro-luminescence spectroscopy.

AB - An α-Al2O3 bicrystal doped with Cr3+ was fabricated by diffusion bonding at high temperatures. It was found that a ruby phase with approximately 200nm thickness was formed along the grain boundary. This thin phase shows Cr3+:Al2O 3-induced luminescence, confirmed by confocal micro-luminescence spectroscopy.

KW - Alumina

KW - Bicrystal

KW - Grain boundary

KW - Luminescence

KW - Ruby

KW - Transmission electron microscopy

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EP - 622

JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

SN - 1882-0743

IS - 1391

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