Title

Surface elastic properties of porous nanosilica coatings by scanning force microscopy

Authors

Authors

A. Vincent; S. Babu;S. Seal

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

MECHANICAL-PROPERTIES; NANOINDENTATION; MODULUS; AEROGELS; FILMS; Physics, Applied

Abstract

Surface elastic properties of sol-gel derived porous nanosilica optical coatings were determined using scanning force microscopy. Silica nanocoatings prepared under acid and base catalyzed sol-gel process exhibited varying surface morphology, particle size and porosity. Force-distance spectroscopy measurements were conducted on these coatings using scanning force microscopy, and their elastic moduli were obtained by applying Hertz model. The elastic modulus of the coatings varied from 2.4 to 13.4 GPa depending on the nature and concentration of the catalyst used. (C) 2007 American Institute of Physics.

Journal Title

Applied Physics Letters

Volume

91

Issue/Number

16

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000250295700024

ISSN

0003-6951

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