Microstructures in oxide eutectic fibers grown by a modified micro-pulling-down method

Akira Yoshikawa; Boris M. Epelbaum; Kenji Hasegawa; Stephen D. Durbin; Tsuguo Fukuda

doi:10.1016/S0022-0248(99)00265-1

Microstructures in oxide eutectic fibers grown by a modified micro-pulling-down method

Akira Yoshikawa, Boris M. Epelbaum, Kenji Hasegawa, Stephen D. Durbin, Tsuguo Fukuda

IMR - Materials Design Division

Tohoku University

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

107 Citations (Scopus)

Abstract

The micro-pulling-down method has been adapted to grow fibers with diameters as small as 150 μm. We describe the use of this method to grow fibers of the oxide eutectic materials Al₂O₃/Y₃Al₅O₁₂ and Al₂O₃/GdAlO₃, which have exceptional mechanical properties at high temperature. The 'Chinese script' microstructure of Al₂O₃/Y₃Al₅O₁₂ is stable and uniform, and varies with the pulling rate in the same way as the conventional lamellar eutectics. The microstructure of Al₂O₃/GdAlO₃ is finer, but less stable and homogeneous, particularly at high pulling rate. Fibers produced at low growth rate exhibited self-cladding by the sapphire phase.

Original language	English
Pages (from-to)	305-316
Number of pages	12
Journal	Journal of Crystal Growth
Volume	205
Issue number	3
DOIs	https://doi.org/10.1016/S0022-0248(99)00265-1
Publication status	Published - 1999 Sept

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@article{bf2f116502524d44aa8edc400485059a,

title = "Microstructures in oxide eutectic fibers grown by a modified micro-pulling-down method",

abstract = "The micro-pulling-down method has been adapted to grow fibers with diameters as small as 150 μm. We describe the use of this method to grow fibers of the oxide eutectic materials Al2O3/Y3Al5O12 and Al2O3/GdAlO3, which have exceptional mechanical properties at high temperature. The 'Chinese script' microstructure of Al2O3/Y3Al5O12 is stable and uniform, and varies with the pulling rate in the same way as the conventional lamellar eutectics. The microstructure of Al2O3/GdAlO3 is finer, but less stable and homogeneous, particularly at high pulling rate. Fibers produced at low growth rate exhibited self-cladding by the sapphire phase.",

author = "Akira Yoshikawa and Epelbaum, {Boris M.} and Kenji Hasegawa and Durbin, {Stephen D.} and Tsuguo Fukuda",

note = "Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B), 10555254, 1998 (TF) and Grant-in-Aid for Scientific Research (A), 10304023, 1998 (SD).",

year = "1999",

month = sep,

doi = "10.1016/S0022-0248(99)00265-1",

language = "English",

volume = "205",

pages = "305--316",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - Microstructures in oxide eutectic fibers grown by a modified micro-pulling-down method

AU - Yoshikawa, Akira

AU - Epelbaum, Boris M.

AU - Hasegawa, Kenji

AU - Durbin, Stephen D.

AU - Fukuda, Tsuguo

N1 - Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B), 10555254, 1998 (TF) and Grant-in-Aid for Scientific Research (A), 10304023, 1998 (SD).

PY - 1999/9

Y1 - 1999/9

N2 - The micro-pulling-down method has been adapted to grow fibers with diameters as small as 150 μm. We describe the use of this method to grow fibers of the oxide eutectic materials Al2O3/Y3Al5O12 and Al2O3/GdAlO3, which have exceptional mechanical properties at high temperature. The 'Chinese script' microstructure of Al2O3/Y3Al5O12 is stable and uniform, and varies with the pulling rate in the same way as the conventional lamellar eutectics. The microstructure of Al2O3/GdAlO3 is finer, but less stable and homogeneous, particularly at high pulling rate. Fibers produced at low growth rate exhibited self-cladding by the sapphire phase.

AB - The micro-pulling-down method has been adapted to grow fibers with diameters as small as 150 μm. We describe the use of this method to grow fibers of the oxide eutectic materials Al2O3/Y3Al5O12 and Al2O3/GdAlO3, which have exceptional mechanical properties at high temperature. The 'Chinese script' microstructure of Al2O3/Y3Al5O12 is stable and uniform, and varies with the pulling rate in the same way as the conventional lamellar eutectics. The microstructure of Al2O3/GdAlO3 is finer, but less stable and homogeneous, particularly at high pulling rate. Fibers produced at low growth rate exhibited self-cladding by the sapphire phase.

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VL - 205

SP - 305

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JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 3

ER -

Microstructures in oxide eutectic fibers grown by a modified micro-pulling-down method

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