Title

Structure and property evaluation of a vacuum plasma sprayed nanostructured tungsten-hafnium carbide bulk composite

Authors

Authors

K. E. Rea; V. Viswanathan; A. Kruize; J. T. M. De Hosson; S. O'Dell; T. McKechnie; S. Rajagopalan; R. Vaidyanathan;S. Seal

Comments

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Abbreviated Journal Title

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

Keywords

powder processing; nanoindentation; transmission electron microscopy; carbides; nanocomposites; MECHANICAL-PROPERTIES; POWDERS; INDENTATION; PARTICLE; ALLOY; LOAD; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

Abstract

Vacuum plasma spray (VPS) forming of tungsten-based metal matrix nanocomposites (MMCs) has shown to be a cost effective and time saving method for the formation of bulk monolithic nanostructured then no-mechanical components. Spray drying of powder feedstock appears to have a significant effect on the improved mechanical properties of the bulk nanocomposite. The reported elastic modulus of the nanocomposite nearly doubles due to the presence of HfC nano particulates in the W matrix. High resolution transmission electron microscopy (HRTEM) revealed the retention of nanostructures at the select process conditions and is correlated with the enhanced mechanical properties of the nanocomposite. Published by Elsevier B.V.

Journal Title

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

Volume

477

Issue/Number

1-2

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

350

Last Page

357

WOS Identifier

WOS:000254780400048

ISSN

0921-5093

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