Toward broadband mechanical spectroscopy.

ABSTRACT: Diverse material classes exhibit qualitatively similar behavior when made viscous upon cooling toward the glass transition, suggesting a common theoretical basis. We used seven different measurement methods to determine the mechanical relaxation kinetics of a prototype molecular glass former over a temporal range of 13 decades and over a temperature range spanning liquid to glassy states. The data conform to time-temperature superposition for the main (alpha) process and to a scaling relation of schematic mode-coupling theory. The broadband mechanical measurements demonstrated have fundamental and practical applications in polymer science, geophysics, multifunctional materials, and other areas.

SUBMITTER: Hecksher T 

PROVIDER: S-EPMC5565458 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature