Growth of 12CaO·7Al2O3 single crystal with tetragonal symmetry by Czochralski method

Kazuhisa Kurashige; Shunsuke Ueda; Masashi Miyakawa; Yoshitake Toda; Satoru Matsuishi; Sungwng Kim; Masahiro Hirano; Hideo Hosono

doi:10.1016/j.tsf.2007.10.027

Growth of 12CaO·7Al₂O₃ single crystal with tetragonal symmetry by Czochralski method

Kazuhisa Kurashige, Shunsuke Ueda, Masashi Miyakawa, Yoshitake Toda, Satoru Matsuishi, Sungwng Kim, Masahiro Hirano, Hideo Hosono

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

11 Scopus citations

Abstract

Single crystals of 12CaO·7Al₂O₃ (C12A7) have been grown by the Czochralski method with three different growth directions of <100>, <110>, and <111>. Employment of a 2.0% oxygen-containing nitrogen atmosphere and use of an iridium crucible were the critical factors for obtaining the single crystal. The crystal exhibited orange color resulting from the incorporation of Ir⁴⁺ ions of ∼ 5 × 10¹⁷ cm^{- 3}, presumably occupying at Ca²⁺ sites. High resolution X-ray diffraction analyses indicated that the C12A7 single crystal shows the tetragonal symmetry belonging to the space group I over(4, -) 2 m.

Original language	English
Pages (from-to)	5772-5776
Number of pages	5
Journal	Thin Solid Films
Volume	516
Issue number	17
DOIs	https://doi.org/10.1016/j.tsf.2007.10.027
State	Published - 1 Jul 2008
Externally published	Yes

Keywords

12CaO·7AlO
Czochralski method
Single crystal

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10.1016/j.tsf.2007.10.027

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title = "Growth of 12CaO·7Al2O3 single crystal with tetragonal symmetry by Czochralski method",

abstract = "Single crystals of 12CaO·7Al2O3 (C12A7) have been grown by the Czochralski method with three different growth directions of <100>, <110>, and <111>. Employment of a 2.0\% oxygen-containing nitrogen atmosphere and use of an iridium crucible were the critical factors for obtaining the single crystal. The crystal exhibited orange color resulting from the incorporation of Ir4+ ions of ∼ 5 × 1017 cm- 3, presumably occupying at Ca2+ sites. High resolution X-ray diffraction analyses indicated that the C12A7 single crystal shows the tetragonal symmetry belonging to the space group I over(4, -) 2 m.",

keywords = "12CaO·7AlO, Czochralski method, Single crystal",

author = "Kazuhisa Kurashige and Shunsuke Ueda and Masashi Miyakawa and Yoshitake Toda and Satoru Matsuishi and Sungwng Kim and Masahiro Hirano and Hideo Hosono",

year = "2008",

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doi = "10.1016/j.tsf.2007.10.027",

language = "English",

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journal = "Thin Solid Films",

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TY - JOUR

T1 - Growth of 12CaO·7Al2O3 single crystal with tetragonal symmetry by Czochralski method

AU - Kurashige, Kazuhisa

AU - Ueda, Shunsuke

AU - Miyakawa, Masashi

AU - Toda, Yoshitake

AU - Matsuishi, Satoru

AU - Kim, Sungwng

AU - Hirano, Masahiro

AU - Hosono, Hideo

PY - 2008/7/1

Y1 - 2008/7/1

N2 - Single crystals of 12CaO·7Al2O3 (C12A7) have been grown by the Czochralski method with three different growth directions of <100>, <110>, and <111>. Employment of a 2.0% oxygen-containing nitrogen atmosphere and use of an iridium crucible were the critical factors for obtaining the single crystal. The crystal exhibited orange color resulting from the incorporation of Ir4+ ions of ∼ 5 × 1017 cm- 3, presumably occupying at Ca2+ sites. High resolution X-ray diffraction analyses indicated that the C12A7 single crystal shows the tetragonal symmetry belonging to the space group I over(4, -) 2 m.

AB - Single crystals of 12CaO·7Al2O3 (C12A7) have been grown by the Czochralski method with three different growth directions of <100>, <110>, and <111>. Employment of a 2.0% oxygen-containing nitrogen atmosphere and use of an iridium crucible were the critical factors for obtaining the single crystal. The crystal exhibited orange color resulting from the incorporation of Ir4+ ions of ∼ 5 × 1017 cm- 3, presumably occupying at Ca2+ sites. High resolution X-ray diffraction analyses indicated that the C12A7 single crystal shows the tetragonal symmetry belonging to the space group I over(4, -) 2 m.

KW - 12CaO·7AlO

KW - Czochralski method

KW - Single crystal

UR - https://www.scopus.com/pages/publications/44249090709

U2 - 10.1016/j.tsf.2007.10.027

DO - 10.1016/j.tsf.2007.10.027

M3 - Article

AN - SCOPUS:44249090709

SN - 0040-6090

VL - 516

SP - 5772

EP - 5776

JO - Thin Solid Films

JF - Thin Solid Films

IS - 17

ER -

Growth of 12CaO·7Al₂O₃ single crystal with tetragonal symmetry by Czochralski method

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