Interracial structure of sub-micron Al2O3 particles in aluminum matrix

Gaohui Wu; Longtao Jiang; Jianfeng Chen; Norio Kouno; Hideo Saito

doi:10.1163/15685540260256537

Interracial structure of sub-micron Al₂O₃ particles in aluminum matrix

Gaohui Wu
, Longtao Jiang
, Jianfeng Chen
, Norio Kouno
, Hideo Saito

Harbin Institute of Technology

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

4 Scopus citations

Abstract

The surfaces of ellipsoidal Al₂O₃ particles with average size of 0.15 μm and the interfaces between the Al₂O₃ particles and 1070Al were investigated by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM).The results show that the surfaces of Al₂O₃ particles appear to be polyhedrons consisting of crystal planes with small angle, while every plane of the polyhedrons could be considered as a stepped structure composed of close-packed planes along the close-packed direction. The interfaces of the 0.15 μm Al₂O₃p/1070Al composite bond well, without any interfacial reaction products. It is proposed that there are several kinds of crystallographic orientation relationships between the aluminum matrix and Al₂O₃ particles due to the polyhedral structure. In our study, such orientation relationships are found to be {110}_Al∥{1̄100}_Al2O3 and 〈110〉_Al∥〈112̄6〉_Al2O3.

Original language	English
Pages (from-to)	445-452
Number of pages	8
Journal	Composite Interfaces
Volume	9
Issue number	5
DOIs	https://doi.org/10.1163/15685540260256537
State	Published - 2002
Externally published	Yes

Keywords

AlO/Al
Interfaces
Metal matrix composites (MMCs)
Sub-micron AlO particles

Access to Document

10.1163/15685540260256537

Cite this

@article{5e1086e0c88d42bb9fb8c148fd85a7aa,

title = "Interracial structure of sub-micron Al2O3 particles in aluminum matrix",

abstract = "The surfaces of ellipsoidal Al2O3 particles with average size of 0.15 μm and the interfaces between the Al2O3 particles and 1070Al were investigated by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM).The results show that the surfaces of Al2O3 particles appear to be polyhedrons consisting of crystal planes with small angle, while every plane of the polyhedrons could be considered as a stepped structure composed of close-packed planes along the close-packed direction. The interfaces of the 0.15 μm Al2O3p/1070Al composite bond well, without any interfacial reaction products. It is proposed that there are several kinds of crystallographic orientation relationships between the aluminum matrix and Al2O3 particles due to the polyhedral structure. In our study, such orientation relationships are found to be \{110\}Al∥\{{\=1}100\}Al2O3 and 〈110〉Al∥〈11{\=2}6〉Al2O3.",

keywords = "AlO/Al, Interfaces, Metal matrix composites (MMCs), Sub-micron AlO particles",

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

year = "2002",

doi = "10.1163/15685540260256537",

language = "英语",

volume = "9",

pages = "445--452",

journal = "Composite Interfaces",

issn = "0927-6440",

publisher = "Taylor and Francis Ltd.",

number = "5",

}

TY - JOUR

T1 - Interracial structure of sub-micron Al2O3 particles in aluminum matrix

AU - Wu, Gaohui

AU - Jiang, Longtao

AU - Chen, Jianfeng

AU - Kouno, Norio

AU - Saito, Hideo

PY - 2002

Y1 - 2002

N2 - The surfaces of ellipsoidal Al2O3 particles with average size of 0.15 μm and the interfaces between the Al2O3 particles and 1070Al were investigated by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM).The results show that the surfaces of Al2O3 particles appear to be polyhedrons consisting of crystal planes with small angle, while every plane of the polyhedrons could be considered as a stepped structure composed of close-packed planes along the close-packed direction. The interfaces of the 0.15 μm Al2O3p/1070Al composite bond well, without any interfacial reaction products. It is proposed that there are several kinds of crystallographic orientation relationships between the aluminum matrix and Al2O3 particles due to the polyhedral structure. In our study, such orientation relationships are found to be {110}Al∥{1̄100}Al2O3 and 〈110〉Al∥〈112̄6〉Al2O3.

AB - The surfaces of ellipsoidal Al2O3 particles with average size of 0.15 μm and the interfaces between the Al2O3 particles and 1070Al were investigated by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM).The results show that the surfaces of Al2O3 particles appear to be polyhedrons consisting of crystal planes with small angle, while every plane of the polyhedrons could be considered as a stepped structure composed of close-packed planes along the close-packed direction. The interfaces of the 0.15 μm Al2O3p/1070Al composite bond well, without any interfacial reaction products. It is proposed that there are several kinds of crystallographic orientation relationships between the aluminum matrix and Al2O3 particles due to the polyhedral structure. In our study, such orientation relationships are found to be {110}Al∥{1̄100}Al2O3 and 〈110〉Al∥〈112̄6〉Al2O3.

KW - AlO/Al

KW - Interfaces

KW - Metal matrix composites (MMCs)

KW - Sub-micron AlO particles

UR - https://www.scopus.com/pages/publications/0036028696

U2 - 10.1163/15685540260256537

DO - 10.1163/15685540260256537

M3 - 文章

AN - SCOPUS:0036028696

SN - 0927-6440

VL - 9

SP - 445

EP - 452

JO - Composite Interfaces

JF - Composite Interfaces

IS - 5

ER -

Interracial structure of sub-micron Al₂O₃ particles in aluminum matrix

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this