Surface Indentation Arrays for High-Throughput Analysis of Viscoelastic Material Properties

Published

August 16, 2009

Author(s)

Peter M. Johnson, Christopher M. Stafford

Abstract

Relaxation processes in viscous liquids and glasses have been studied extensively as these processes dictate polymer reliability in applications where a constant or cyclical load is applied. These relaxations processes may lead to permanent deformations or the ultimate failure of the sample, but the underlying causes of glassy behavior in polymeric systems remains as a major unsolved area of condensed matter physics. Relaxation processes are generally studied using long time scale experiments or time-temperature superposition; both approaches allow for the measurement of these responses over the required application time. In this work, we demonstrate a simple, high-throughput method to measure creep compliance of polymer films using an array of independent spherical indenters. This indentation array can be easily adapted to produce a high number of unique conditions through the use of composition or temperature gradients.

Proceedings Title

American Chemical Society Division of Polymer Materials: Science & Engineering|238th | |ACS

Conference Dates

August 16-20, 2009

Conference Location

Washington, DC, DC

Pub Type

Conferences

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Keywords

creep, compliance, indentation, high-throughput, time-temperature superposition

Citation

Johnson, P. and Stafford, C. (2009), Surface Indentation Arrays for High-Throughput Analysis of Viscoelastic Material Properties, American Chemical Society Division of Polymer Materials: Science & Engineering|238th | |ACS, Washington, DC, DC, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901889 (Accessed October 2, 2025)