Title

Synthesis and characterization of high volume fraction Al-Al2O3 nanocomposite powders by high-energy milling

Authors

Authors

B. Prabhu; C. Suryanarayana; L. An;R. Vaidyanathan

Comments

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Abbreviated Journal Title

Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.

Keywords

Al-Al2O3 metal matrix composites; high-energy milling; scanning electron; microscopy; X-ray mapping; X-ray diff-raction; METAL-MATRIX COMPOSITES; REINFORCED ALUMINUM; TENSILE PROPERTIES; DEFORMATION; BEHAVIOR; AL2O3; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

Abstract

Al-AL(2)O(3) metal matrix composite (MMC) powders with volume fractions of 20, 30, and 50% Al2O3 were synthesized by high-energy milling of the blended component powders. The particle sizes of Al2O3 studied were 50 nm, 150 nm, and 5 mu m. A uniform distribution of the Al2O3 reinforcement in the Al matrix was successfully obtained after milling the powders for a period of 20 h at a ball-to-powder ratio of 10: 1 in a SPEX mill. The uniform distribution of Al2O3 in the Al matrix was confirmed by characterizing these nanocomposite powders by scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray mapping, and X-ray diffraction (XRD) techniques. (c) 2006 Elsevier B.V. All rights reserved.

Journal Title

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

Volume

425

Issue/Number

1-2

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

192

Last Page

200

WOS Identifier

WOS:000241151500025

ISSN

0921-5093

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