Sol-gel alumina coatings for whisker reinforced metal matrix composites

D. Y. Ding; J. C. Rao; D. Z. Wang; Z. Y. Ma; L. Geng; C. K. Yao

doi:10.1016/S0921-5093(99)00619-X

Sol-gel alumina coatings for whisker reinforced metal matrix composites

D. Y. Ding^*
, J. C. Rao
, D. Z. Wang
, Z. Y. Ma
, L. Geng
, C. K. Yao

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
CAS - Institute of Metal Research

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

24 Scopus citations

Abstract

There exist serious interfacial reactions in squeeze-casting aluminum borate whisker reinforced 6061 Al composites. To control the spinel reactions a sol-gel coating method was used to deposit γ-Al₂O₃ and α-Al₂O₃ ceramic coatings on aluminum borate whiskers. TEM observations of coating morphology indicate that nanostructured alumina coatings are uniformly deposited on whisker surfaces, with a thickness of about 30-50 nm. Ball-milling has an important effect on final mechanical properties of the composites. γ-Al₂O₃ and α-Al₂O₃ coatings were found to be effective in controlling the interfacial reactions, by completely preventing the diffusion of magnesium from matrix/coating interface to coating/whisker interface.

Original language	English
Pages (from-to)	138-141
Number of pages	4
Journal	Materials Science and Engineering: A
Volume	279
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-5093(99)00619-X
State	Published - 29 Feb 2000

Keywords

Alumina coating
Aluminum matrix composite
Interfacial reaction

Access to Document

10.1016/S0921-5093(99)00619-X

Cite this

@article{2bdecadd92eb4435b6944ed888b2d320,

title = "Sol-gel alumina coatings for whisker reinforced metal matrix composites",

abstract = "There exist serious interfacial reactions in squeeze-casting aluminum borate whisker reinforced 6061 Al composites. To control the spinel reactions a sol-gel coating method was used to deposit γ-Al2O3 and α-Al2O3 ceramic coatings on aluminum borate whiskers. TEM observations of coating morphology indicate that nanostructured alumina coatings are uniformly deposited on whisker surfaces, with a thickness of about 30-50 nm. Ball-milling has an important effect on final mechanical properties of the composites. γ-Al2O3 and α-Al2O3 coatings were found to be effective in controlling the interfacial reactions, by completely preventing the diffusion of magnesium from matrix/coating interface to coating/whisker interface.",

keywords = "Alumina coating, Aluminum matrix composite, Interfacial reaction",

author = "Ding, \{D. Y.\} and Rao, \{J. C.\} and Wang, \{D. Z.\} and Ma, \{Z. Y.\} and L. Geng and Yao, \{C. K.\}",

year = "2000",

month = feb,

day = "29",

doi = "10.1016/S0921-5093(99)00619-X",

language = "英语",

volume = "279",

pages = "138--141",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

number = "1-2",

}

TY - JOUR

T1 - Sol-gel alumina coatings for whisker reinforced metal matrix composites

AU - Ding, D. Y.

AU - Rao, J. C.

AU - Wang, D. Z.

AU - Ma, Z. Y.

AU - Geng, L.

AU - Yao, C. K.

PY - 2000/2/29

Y1 - 2000/2/29

N2 - There exist serious interfacial reactions in squeeze-casting aluminum borate whisker reinforced 6061 Al composites. To control the spinel reactions a sol-gel coating method was used to deposit γ-Al2O3 and α-Al2O3 ceramic coatings on aluminum borate whiskers. TEM observations of coating morphology indicate that nanostructured alumina coatings are uniformly deposited on whisker surfaces, with a thickness of about 30-50 nm. Ball-milling has an important effect on final mechanical properties of the composites. γ-Al2O3 and α-Al2O3 coatings were found to be effective in controlling the interfacial reactions, by completely preventing the diffusion of magnesium from matrix/coating interface to coating/whisker interface.

AB - There exist serious interfacial reactions in squeeze-casting aluminum borate whisker reinforced 6061 Al composites. To control the spinel reactions a sol-gel coating method was used to deposit γ-Al2O3 and α-Al2O3 ceramic coatings on aluminum borate whiskers. TEM observations of coating morphology indicate that nanostructured alumina coatings are uniformly deposited on whisker surfaces, with a thickness of about 30-50 nm. Ball-milling has an important effect on final mechanical properties of the composites. γ-Al2O3 and α-Al2O3 coatings were found to be effective in controlling the interfacial reactions, by completely preventing the diffusion of magnesium from matrix/coating interface to coating/whisker interface.

KW - Alumina coating

KW - Aluminum matrix composite

KW - Interfacial reaction

UR - https://www.scopus.com/pages/publications/0034728485

U2 - 10.1016/S0921-5093(99)00619-X

DO - 10.1016/S0921-5093(99)00619-X

M3 - 文章

AN - SCOPUS:0034728485

SN - 0921-5093

VL - 279

SP - 138

EP - 141

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Sol-gel alumina coatings for whisker reinforced metal matrix composites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this