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Title: Investigation of thermally activated deformation in amorphous PMMA and Zr-Cu-Al bulk metallic glasses with broadband nanoindentation creep

Source: J. Mater. Res., Vol. 24, No. 3, pp. 1279-1290; Mar 2009

Author(s)Puthoff, J.B.; Jakes, J.E.; Cao, H.; Stone, D.S.

Publication Year: 2009  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4707-3A

Abstract: Instrumented indentation techniques for determining the hardness and elastic moduli of materials have been applied across a wide range of scientific disciplines. These techniques have proved useful in investigations of metallic, ceramic, polymeric, and biological materials,1 and the development of high-resolution indentation (nanoindentation)2-4 has allowed these types of measurements to be conducted on specimens whose geometries or properties disallow other testing techniques (e.g., thin films, complex biologicals, phases in alloys, brittle materials). Less well-known, but equally important, are the uses of instrumented indentation for measuring the temperature- and strain-rate-dependent (creep) properties of materials.5-10 These properties provide information on the kinetics of plastic deformation and the operation of the underlying mechanisms.

Keywords: Creep; metallic glasses; hardness; strains; stresses; mechanical properties; elasticity; deformation; testing; polymethyl methacrylate; nanostructured materials; measurement; nanotechnology; zirconium; copper; aluminum; creep; nanoindentation; broadband nanoindentation creep

File size: 1,180 kb(s)

Date posted: 04/27/2009

This publication is also viewable on Treesearch:  view
RITS Product ID: 29705
Current FPL Scientist associated with this product
Jakes, Joseph
Research Materials Engineer

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