Directionally Solidified Al2O3/Er3Al5O12 and Al2O3/Yb3Al5O12 Eutectic Ceramics Prepared by Optical Floating Zone Melting

Luchao Sun; Cui Zhou; Tiefeng Du; Zhen Wu; Yiming Lei; Jialin Li; Haijun Su; Jingyang Wang

doi:10.15541/jim20200508

Directionally Solidified Al₂O₃/Er₃Al₅O₁₂ and Al₂O₃/Yb₃Al₅O₁₂ Eutectic Ceramics Prepared by Optical Floating Zone Melting

Luchao Sun
, Cui Zhou
, Tiefeng Du
, Zhen Wu
, Yiming Lei
, Jialin Li
, Haijun Su
, Jingyang Wang

School of Materials Sience and Engineering

CAS - Institute of Metal Research
University of Science and Technology of China

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

16 Scopus citations

Abstract

Al₂O₃/Er₃Al₅O₁₂(ErAG) and Al₂O₃/Yb₃Al₅O₁₂(YbAG) eutectic rods with fine and homogeneous microstructure, free from cracks or pores, were directionally solidified using optical floating zone method at growth rate of 10 mm/h. The crystallographic orientation, preferred orientation, and 3D distribution of Al₂O₃ and Er₃Al₅O₁₂/Yb₃Al₅O₁₂ phases in the terminal growth zone of Al₂O₃/ErAG and Al₂O₃/YbAG eutectics were investigated by EBSD and high-resolution X-ray microscope. Vickers hardness of the as-prepared Al₂O₃/ErAG and Al₂O₃/YbAG eutectics are determined as (13.5±0.4) and (12.8±0.1) GPa, respectively. The fracture toughness results of Al₂O₃/ErAG and Al₂O₃/YbAG are (3.0±0.2) and (3.2±0.1) MPa•m^1/2, respectively.

Translated title of the contribution	光悬浮区熔定向凝固Al₂O₃/Er₃Al₅O₁₂和Al₂O₃/Yb₃Al₅O₁₂共晶陶瓷的制备与性能研究
Original language	English
Pages (from-to)	652-658
Number of pages	7
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	36
Issue number	6
DOIs	https://doi.org/10.15541/jim20200508
State	Published - Jun 2021

Keywords

Directional solidification
Eutectic ceramic
Mechanical property
Microstructure

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10.15541/jim20200508

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title = "Directionally Solidified Al2O3/Er3Al5O12 and Al2O3/Yb3Al5O12 Eutectic Ceramics Prepared by Optical Floating Zone Melting",

abstract = "Al2O3/Er3Al5O12(ErAG) and Al2O3/Yb3Al5O12(YbAG) eutectic rods with fine and homogeneous microstructure, free from cracks or pores, were directionally solidified using optical floating zone method at growth rate of 10 mm/h. The crystallographic orientation, preferred orientation, and 3D distribution of Al2O3 and Er3Al5O12/Yb3Al5O12 phases in the terminal growth zone of Al2O3/ErAG and Al2O3/YbAG eutectics were investigated by EBSD and high-resolution X-ray microscope. Vickers hardness of the as-prepared Al2O3/ErAG and Al2O3/YbAG eutectics are determined as (13.5±0.4) and (12.8±0.1) GPa, respectively. The fracture toughness results of Al2O3/ErAG and Al2O3/YbAG are (3.0±0.2) and (3.2±0.1) MPa•m1/2, respectively.",

keywords = "Directional solidification, Eutectic ceramic, Mechanical property, Microstructure",

author = "Luchao Sun and Cui Zhou and Tiefeng Du and Zhen Wu and Yiming Lei and Jialin Li and Haijun Su and Jingyang Wang",

year = "2021",

month = jun,

doi = "10.15541/jim20200508",

language = "英语",

volume = "36",

pages = "652--658",

journal = "Wuji Cailiao Xuebao/Journal of Inorganic Materials",

issn = "1000-324X",

publisher = "Science Press ",

number = "6",

}

TY - JOUR

T1 - Directionally Solidified Al2O3/Er3Al5O12 and Al2O3/Yb3Al5O12 Eutectic Ceramics Prepared by Optical Floating Zone Melting

AU - Sun, Luchao

AU - Zhou, Cui

AU - Du, Tiefeng

AU - Wu, Zhen

AU - Lei, Yiming

AU - Li, Jialin

AU - Su, Haijun

AU - Wang, Jingyang

PY - 2021/6

Y1 - 2021/6

N2 - Al2O3/Er3Al5O12(ErAG) and Al2O3/Yb3Al5O12(YbAG) eutectic rods with fine and homogeneous microstructure, free from cracks or pores, were directionally solidified using optical floating zone method at growth rate of 10 mm/h. The crystallographic orientation, preferred orientation, and 3D distribution of Al2O3 and Er3Al5O12/Yb3Al5O12 phases in the terminal growth zone of Al2O3/ErAG and Al2O3/YbAG eutectics were investigated by EBSD and high-resolution X-ray microscope. Vickers hardness of the as-prepared Al2O3/ErAG and Al2O3/YbAG eutectics are determined as (13.5±0.4) and (12.8±0.1) GPa, respectively. The fracture toughness results of Al2O3/ErAG and Al2O3/YbAG are (3.0±0.2) and (3.2±0.1) MPa•m1/2, respectively.

AB - Al2O3/Er3Al5O12(ErAG) and Al2O3/Yb3Al5O12(YbAG) eutectic rods with fine and homogeneous microstructure, free from cracks or pores, were directionally solidified using optical floating zone method at growth rate of 10 mm/h. The crystallographic orientation, preferred orientation, and 3D distribution of Al2O3 and Er3Al5O12/Yb3Al5O12 phases in the terminal growth zone of Al2O3/ErAG and Al2O3/YbAG eutectics were investigated by EBSD and high-resolution X-ray microscope. Vickers hardness of the as-prepared Al2O3/ErAG and Al2O3/YbAG eutectics are determined as (13.5±0.4) and (12.8±0.1) GPa, respectively. The fracture toughness results of Al2O3/ErAG and Al2O3/YbAG are (3.0±0.2) and (3.2±0.1) MPa•m1/2, respectively.

KW - Directional solidification

KW - Eutectic ceramic

KW - Mechanical property

KW - Microstructure

UR - https://www.scopus.com/pages/publications/85109074688

U2 - 10.15541/jim20200508

DO - 10.15541/jim20200508

M3 - 文章

AN - SCOPUS:85109074688

SN - 1000-324X

VL - 36

SP - 652

EP - 658

JO - Wuji Cailiao Xuebao/Journal of Inorganic Materials

JF - Wuji Cailiao Xuebao/Journal of Inorganic Materials

IS - 6

ER -

Directionally Solidified Al₂O₃/Er₃Al₅O₁₂ and Al₂O₃/Yb₃Al₅O₁₂ Eutectic Ceramics Prepared by Optical Floating Zone Melting

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