Microstructure and tensile properties of yttria coated-alumina particulates reinforced aluminum matrix composites

Zhiqiang Yu; Gaohui Wu; Longtao Jiang; Dongli Sun

Microstructure and tensile properties of yttria coated-alumina particulates reinforced aluminum matrix composites

Zhiqiang Yu^*
, Gaohui Wu
, Longtao Jiang
, Dongli Sun

^*Corresponding author for this work

Harbin Institute of Technology

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

3 Scopus citations

Abstract

The liquid-phase coating method was used to deposit Y₂O₃ ceramic on the surface of α-Al₂O₃. The coated-Al₂O_3p/6061Al composites were produced using squeeze casting technology. The microstructure and tensile properties of the composites were analysed and studied. The results showed that the coated Al₂O₃ particles are able to disperse homogeneously in the aluminum liquid. The microstructure of the composites is more even in comparison with that of as-received powders. The tensile testing indicated that mechanical properties of the coated-Al₂O_3p/6061Al composites are better than those of uncoated particles. In the composite with 30% volume fraction, the tensile strength, yield strength as well as elongation is increased by 29.8%, 38.4% and 10.3%, respectively. The SEM analysis of fracture indicated that the dimples of the coated-Al₂O_3p/6061Al composites are more even.

Original language	English
Pages (from-to)	68-70
Number of pages	3
Journal	Journal of Materials Science and Technology
Volume	21
Issue number	1
State	Published - Jan 2005
Externally published	Yes

Keywords

Aluminum matrix composite
Mechanical properties
Microstructure
Rare-earth oxide coating
Submicron alumina powders

Cite this

@article{e579331403f84554b28d379275c39c5f,

title = "Microstructure and tensile properties of yttria coated-alumina particulates reinforced aluminum matrix composites",

abstract = "The liquid-phase coating method was used to deposit Y2O3 ceramic on the surface of α-Al2O3. The coated-Al2O3p/6061Al composites were produced using squeeze casting technology. The microstructure and tensile properties of the composites were analysed and studied. The results showed that the coated Al2O3 particles are able to disperse homogeneously in the aluminum liquid. The microstructure of the composites is more even in comparison with that of as-received powders. The tensile testing indicated that mechanical properties of the coated-Al2O3p/6061Al composites are better than those of uncoated particles. In the composite with 30\% volume fraction, the tensile strength, yield strength as well as elongation is increased by 29.8\%, 38.4\% and 10.3\%, respectively. The SEM analysis of fracture indicated that the dimples of the coated-Al2O3p/6061Al composites are more even.",

keywords = "Aluminum matrix composite, Mechanical properties, Microstructure, Rare-earth oxide coating, Submicron alumina powders",

author = "Zhiqiang Yu and Gaohui Wu and Longtao Jiang and Dongli Sun",

year = "2005",

month = jan,

language = "英语",

volume = "21",

pages = "68--70",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

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}

TY - JOUR

T1 - Microstructure and tensile properties of yttria coated-alumina particulates reinforced aluminum matrix composites

AU - Yu, Zhiqiang

AU - Wu, Gaohui

AU - Jiang, Longtao

AU - Sun, Dongli

PY - 2005/1

Y1 - 2005/1

N2 - The liquid-phase coating method was used to deposit Y2O3 ceramic on the surface of α-Al2O3. The coated-Al2O3p/6061Al composites were produced using squeeze casting technology. The microstructure and tensile properties of the composites were analysed and studied. The results showed that the coated Al2O3 particles are able to disperse homogeneously in the aluminum liquid. The microstructure of the composites is more even in comparison with that of as-received powders. The tensile testing indicated that mechanical properties of the coated-Al2O3p/6061Al composites are better than those of uncoated particles. In the composite with 30% volume fraction, the tensile strength, yield strength as well as elongation is increased by 29.8%, 38.4% and 10.3%, respectively. The SEM analysis of fracture indicated that the dimples of the coated-Al2O3p/6061Al composites are more even.

AB - The liquid-phase coating method was used to deposit Y2O3 ceramic on the surface of α-Al2O3. The coated-Al2O3p/6061Al composites were produced using squeeze casting technology. The microstructure and tensile properties of the composites were analysed and studied. The results showed that the coated Al2O3 particles are able to disperse homogeneously in the aluminum liquid. The microstructure of the composites is more even in comparison with that of as-received powders. The tensile testing indicated that mechanical properties of the coated-Al2O3p/6061Al composites are better than those of uncoated particles. In the composite with 30% volume fraction, the tensile strength, yield strength as well as elongation is increased by 29.8%, 38.4% and 10.3%, respectively. The SEM analysis of fracture indicated that the dimples of the coated-Al2O3p/6061Al composites are more even.

KW - Aluminum matrix composite

KW - Mechanical properties

KW - Microstructure

KW - Rare-earth oxide coating

KW - Submicron alumina powders

UR - https://www.scopus.com/pages/publications/15044338663

M3 - 文章

AN - SCOPUS:15044338663

SN - 1005-0302

VL - 21

SP - 68

EP - 70

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 1

ER -

Microstructure and tensile properties of yttria coated-alumina particulates reinforced aluminum matrix composites

Abstract

Keywords

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