Effects of sub-micron particles on the matrix microstructure of Al based composites

Longtao Jiang; Gaohui Wu; Norio Kouno; Hideo Saito

Effects of sub-micron particles on the matrix microstructure of Al based composites

Longtao Jiang^*
, Gaohui Wu
, Norio Kouno
, Hideo Saito

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Chiba Institute of Technology

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

5 Scopus citations

Abstract

Aluminum based composites in a volume fractions of 40% were fabricated using the Al₂O₃ particles of 0.15 urn and 5 μm in sizes by extrusion casting technique. The microstructure characterization near the interfaces of Al₂O_3P/1070Al composites was investigated by SADP and HREM techniques. Results show that dislocations of high-density were generated in the Al₂O₃/Al composite reinforced with Al₂O₃ particles of 5 nm due to the thermal mismatch stress. In contrast, free dislocations and some 'micro distortion areas' of 1-5 nm were observed in the Al₂O_3P/Al composite reinforced with Al₂O₃ particles of 0.15 μm due to the dispersion of fine sub-micron particles and the uniform stress distribution near the interfaces.

Original language	English
Pages (from-to)	1002-1004
Number of pages	3
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	6
State	Published - Jun 2007

Keywords

AlO/Al
Metal matrix composites
Microstructure
Sub-micron AlO particles

Cite this

@article{02b0828446c244f8b19b7b2b297f29bb,

title = "Effects of sub-micron particles on the matrix microstructure of Al based composites",

abstract = "Aluminum based composites in a volume fractions of 40\% were fabricated using the Al2O3 particles of 0.15 urn and 5 μm in sizes by extrusion casting technique. The microstructure characterization near the interfaces of Al2O3P/1070Al composites was investigated by SADP and HREM techniques. Results show that dislocations of high-density were generated in the Al2O3/Al composite reinforced with Al2O3 particles of 5 nm due to the thermal mismatch stress. In contrast, free dislocations and some 'micro distortion areas' of 1-5 nm were observed in the Al2O3P/Al composite reinforced with Al2O3 particles of 0.15 μm due to the dispersion of fine sub-micron particles and the uniform stress distribution near the interfaces.",

keywords = "AlO/Al, Metal matrix composites, Microstructure, Sub-micron AlO particles",

author = "Longtao Jiang and Gaohui Wu and Norio Kouno and Hideo Saito",

year = "2007",

month = jun,

language = "英语",

volume = "36",

pages = "1002--1004",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "6",

}

TY - JOUR

T1 - Effects of sub-micron particles on the matrix microstructure of Al based composites

AU - Jiang, Longtao

AU - Wu, Gaohui

AU - Kouno, Norio

AU - Saito, Hideo

PY - 2007/6

Y1 - 2007/6

N2 - Aluminum based composites in a volume fractions of 40% were fabricated using the Al2O3 particles of 0.15 urn and 5 μm in sizes by extrusion casting technique. The microstructure characterization near the interfaces of Al2O3P/1070Al composites was investigated by SADP and HREM techniques. Results show that dislocations of high-density were generated in the Al2O3/Al composite reinforced with Al2O3 particles of 5 nm due to the thermal mismatch stress. In contrast, free dislocations and some 'micro distortion areas' of 1-5 nm were observed in the Al2O3P/Al composite reinforced with Al2O3 particles of 0.15 μm due to the dispersion of fine sub-micron particles and the uniform stress distribution near the interfaces.

AB - Aluminum based composites in a volume fractions of 40% were fabricated using the Al2O3 particles of 0.15 urn and 5 μm in sizes by extrusion casting technique. The microstructure characterization near the interfaces of Al2O3P/1070Al composites was investigated by SADP and HREM techniques. Results show that dislocations of high-density were generated in the Al2O3/Al composite reinforced with Al2O3 particles of 5 nm due to the thermal mismatch stress. In contrast, free dislocations and some 'micro distortion areas' of 1-5 nm were observed in the Al2O3P/Al composite reinforced with Al2O3 particles of 0.15 μm due to the dispersion of fine sub-micron particles and the uniform stress distribution near the interfaces.

KW - AlO/Al

KW - Metal matrix composites

KW - Microstructure

KW - Sub-micron AlO particles

UR - https://www.scopus.com/pages/publications/34547742672

M3 - 文章

AN - SCOPUS:34547742672

SN - 1002-185X

VL - 36

SP - 1002

EP - 1004

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 6

ER -

Effects of sub-micron particles on the matrix microstructure of Al based composites

Abstract

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