Research on fabrication and microstructure of in-situ nano-Al2O3 particles reinforced aluminum matrix composite

Meng Zheng; Yu Tao Zhao; Deng Bin Chen; Zhao Zhang; Hong Biao Dong

Research on fabrication and microstructure of in-situ nano-Al₂O₃ particles reinforced aluminum matrix composite

Meng Zheng^*
, Yu Tao Zhao
, Deng Bin Chen
, Zhao Zhang
, Hong Biao Dong

^*Corresponding author for this work

Metallurgy and Materials

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

Abstract

In-situ (Al₂O₃)_np/Al composite was synthesized by the direct melt reaction (DMR) technique with Na₂B₄O₇ · 10H₂O and K₂ZrF₆ powders using a new reaction system. Microstructures and phases of the composite were analyzed by SEM, XRD and TEM. Results indicated that plenty of nano γ-Al₂O₃ particles, whose sizes are 20-100nm, are obtained and distributed uniformly in the aluminum matrix. The formation mechanism of nano-size Al₂O₃ particle is reaction-solution-precipitation. The coherent relationship with γ-Al₂O₃(040)//Al(200) exist in the interfaces between the Al matrix and the γ-Al₂O₃ particles, and no resultant production is found along these interfaces. Since the formation of nano Al₂O₃ particles, there are large amount of high density dislocations in the composite, which make it strengthened remarkably.

Original language	English
Pages (from-to)	748-750+754
Journal	Gongneng Cailiao/Journal of Functional Materials
Volume	42
Issue number	SUPPL. 4
Publication status	Published - Aug 2011

Keywords

γ-AlO particle
Aluminum matrix composite
Interface
Nano

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Cite this

@article{ea42890336c848229879950b025dd9b2,

title = "Research on fabrication and microstructure of in-situ nano-Al2O3 particles reinforced aluminum matrix composite",

abstract = "In-situ (Al2O3)np/Al composite was synthesized by the direct melt reaction (DMR) technique with Na2B4O7 · 10H2O and K2ZrF6 powders using a new reaction system. Microstructures and phases of the composite were analyzed by SEM, XRD and TEM. Results indicated that plenty of nano γ-Al2O3 particles, whose sizes are 20-100nm, are obtained and distributed uniformly in the aluminum matrix. The formation mechanism of nano-size Al2O3 particle is reaction-solution-precipitation. The coherent relationship with γ-Al2O3(040)//Al(200) exist in the interfaces between the Al matrix and the γ-Al2O3 particles, and no resultant production is found along these interfaces. Since the formation of nano Al2O3 particles, there are large amount of high density dislocations in the composite, which make it strengthened remarkably.",

keywords = "γ-AlO particle, Aluminum matrix composite, Interface, Nano",

author = "Meng Zheng and Zhao, \{Yu Tao\} and Chen, \{Deng Bin\} and Zhao Zhang and Dong, \{Hong Biao\}",

year = "2011",

month = aug,

language = "English",

volume = "42",

pages = "748--750+754",

journal = "Gongneng Cailiao/Journal of Functional Materials",

issn = "1001-9731",

number = "SUPPL. 4",

}

TY - JOUR

T1 - Research on fabrication and microstructure of in-situ nano-Al2O3 particles reinforced aluminum matrix composite

AU - Zheng, Meng

AU - Zhao, Yu Tao

AU - Chen, Deng Bin

AU - Zhang, Zhao

AU - Dong, Hong Biao

PY - 2011/8

Y1 - 2011/8

N2 - In-situ (Al2O3)np/Al composite was synthesized by the direct melt reaction (DMR) technique with Na2B4O7 · 10H2O and K2ZrF6 powders using a new reaction system. Microstructures and phases of the composite were analyzed by SEM, XRD and TEM. Results indicated that plenty of nano γ-Al2O3 particles, whose sizes are 20-100nm, are obtained and distributed uniformly in the aluminum matrix. The formation mechanism of nano-size Al2O3 particle is reaction-solution-precipitation. The coherent relationship with γ-Al2O3(040)//Al(200) exist in the interfaces between the Al matrix and the γ-Al2O3 particles, and no resultant production is found along these interfaces. Since the formation of nano Al2O3 particles, there are large amount of high density dislocations in the composite, which make it strengthened remarkably.

AB - In-situ (Al2O3)np/Al composite was synthesized by the direct melt reaction (DMR) technique with Na2B4O7 · 10H2O and K2ZrF6 powders using a new reaction system. Microstructures and phases of the composite were analyzed by SEM, XRD and TEM. Results indicated that plenty of nano γ-Al2O3 particles, whose sizes are 20-100nm, are obtained and distributed uniformly in the aluminum matrix. The formation mechanism of nano-size Al2O3 particle is reaction-solution-precipitation. The coherent relationship with γ-Al2O3(040)//Al(200) exist in the interfaces between the Al matrix and the γ-Al2O3 particles, and no resultant production is found along these interfaces. Since the formation of nano Al2O3 particles, there are large amount of high density dislocations in the composite, which make it strengthened remarkably.

KW - γ-AlO particle

KW - Aluminum matrix composite

KW - Interface

KW - Nano

UR - https://www.scopus.com/pages/publications/80055070402

M3 - Article

SN - 1001-9731

VL - 42

SP - 748-750+754

JO - Gongneng Cailiao/Journal of Functional Materials

JF - Gongneng Cailiao/Journal of Functional Materials

IS - SUPPL. 4