Eutectic growth behavior with regular arrangement in the faceted Al2O3/Er3Al5O12 irregular eutectic system at low growth rate

Qun Ren; Haijun Su; Jun Zhang; Haifang Liu; Di Zhao; Guangrao Fan; Min Guo; Lin Liu; Hengzhi Fu

doi:10.1016/j.scriptamat.2018.10.030

Eutectic growth behavior with regular arrangement in the faceted Al₂O₃/Er₃Al₅O₁₂ irregular eutectic system at low growth rate

Qun Ren
, Haijun Su
, Jun Zhang
, Haifang Liu
, Di Zhao
, Guangrao Fan
, Min Guo
, Lin Liu
, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

17 Scopus citations

Abstract

Eutectic growth with regular arrangement (RA) is generally formed in directionally solidified alumina base eutectic in situ composites under high growth rates. In this work, the eutectic growth with RA structure is also observed at low growth rate in Al₂O₃/Er₃Al₅O₁₂ composite. The RA structure is formed near primary Al₂O₃ dendrite in Al₂O₃/Er₃Al₅O₁₂ hypoeutectic. Eutectic instabilities especially the single-phase instability lead to the primary Al₂O₃ phase/dendrite precipitation, and Er₃Al₅O₁₂ phase nucleated on the Al₂O₃ substrate is considered as a probable reason of RA structure formation.

Original language	English
Pages (from-to)	49-53
Number of pages	5
Journal	Scripta Materialia
Volume	162
DOIs	https://doi.org/10.1016/j.scriptamat.2018.10.030
State	Published - 15 Mar 2019

Keywords

Directional solidification
Laser floating zone melting
Oxide composite
Regular arrangement

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10.1016/j.scriptamat.2018.10.030

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title = "Eutectic growth behavior with regular arrangement in the faceted Al2O3/Er3Al5O12 irregular eutectic system at low growth rate",

abstract = "Eutectic growth with regular arrangement (RA) is generally formed in directionally solidified alumina base eutectic in situ composites under high growth rates. In this work, the eutectic growth with RA structure is also observed at low growth rate in Al2O3/Er3Al5O12 composite. The RA structure is formed near primary Al2O3 dendrite in Al2O3/Er3Al5O12 hypoeutectic. Eutectic instabilities especially the single-phase instability lead to the primary Al2O3 phase/dendrite precipitation, and Er3Al5O12 phase nucleated on the Al2O3 substrate is considered as a probable reason of RA structure formation.",

keywords = "Directional solidification, Laser floating zone melting, Oxide composite, Regular arrangement",

author = "Qun Ren and Haijun Su and Jun Zhang and Haifang Liu and Di Zhao and Guangrao Fan and Min Guo and Lin Liu and Hengzhi Fu",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2019",

month = mar,

day = "15",

doi = "10.1016/j.scriptamat.2018.10.030",

language = "英语",

volume = "162",

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TY - JOUR

T1 - Eutectic growth behavior with regular arrangement in the faceted Al2O3/Er3Al5O12 irregular eutectic system at low growth rate

AU - Ren, Qun

AU - Su, Haijun

AU - Zhang, Jun

AU - Liu, Haifang

AU - Zhao, Di

AU - Fan, Guangrao

AU - Guo, Min

AU - Liu, Lin

AU - Fu, Hengzhi

PY - 2019/3/15

Y1 - 2019/3/15

N2 - Eutectic growth with regular arrangement (RA) is generally formed in directionally solidified alumina base eutectic in situ composites under high growth rates. In this work, the eutectic growth with RA structure is also observed at low growth rate in Al2O3/Er3Al5O12 composite. The RA structure is formed near primary Al2O3 dendrite in Al2O3/Er3Al5O12 hypoeutectic. Eutectic instabilities especially the single-phase instability lead to the primary Al2O3 phase/dendrite precipitation, and Er3Al5O12 phase nucleated on the Al2O3 substrate is considered as a probable reason of RA structure formation.

AB - Eutectic growth with regular arrangement (RA) is generally formed in directionally solidified alumina base eutectic in situ composites under high growth rates. In this work, the eutectic growth with RA structure is also observed at low growth rate in Al2O3/Er3Al5O12 composite. The RA structure is formed near primary Al2O3 dendrite in Al2O3/Er3Al5O12 hypoeutectic. Eutectic instabilities especially the single-phase instability lead to the primary Al2O3 phase/dendrite precipitation, and Er3Al5O12 phase nucleated on the Al2O3 substrate is considered as a probable reason of RA structure formation.

KW - Directional solidification

KW - Laser floating zone melting

KW - Oxide composite

KW - Regular arrangement

UR - https://www.scopus.com/pages/publications/85055887043

U2 - 10.1016/j.scriptamat.2018.10.030

DO - 10.1016/j.scriptamat.2018.10.030

M3 - 文章

AN - SCOPUS:85055887043

SN - 1359-6462

VL - 162

SP - 49

EP - 53

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Eutectic growth behavior with regular arrangement in the faceted Al₂O₃/Er₃Al₅O₁₂ irregular eutectic system at low growth rate

Abstract

Keywords

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