Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 615, Issue -, Pages S392-S396Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.12.239
Keywords
Atomic force microscopy, AFM; Metal matrix composites; Nanostructured materials; Oxidation; Scanning electron microscopy, SEM
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Funding
- Technical Education Quality Improvement Program (TEQIP) - Phase II, Government of India
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Nanocrystalline Aluminium nitride (AlN) powder is dispersed in different weight ratio in Aluminum matrix to fabricate metal matrix nanocomposite (MMNC) using ex situ melt metallurgy process. The synthesized Al-AlN nanocomposites are studied for phase analysis using high resolution scanning electron microscopy (FEG-SEM) and for hardness behavior using microindentation and nanoindentation tests. Quantitative analysis of the oxide phases is calculated from thermodynamic data and mass balance equation using elemental data obtained from energy dispersive spectroscopy (EDS) results. Role of oxide phases in association with AlN particles is investigated to understand the mechanical behavior of composites using nanoindentation tester. Load-displacement profile obtained from nanoindentation test reveals distribution of oxide phases along with AlN particle and their effect on indent penetration. (C) 2014 Elsevier B.V. All rights reserved.
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