Microscopic pathways for stress relaxation in repulsive colloidal glasses.

ABSTRACT: Residual stresses are well-known companions of all glassy materials. They affect and, in many cases, even strongly modify important material properties like the mechanical response and the optical transparency. The mechanisms through which stresses affect such properties are, in many cases, still under study, and their full understanding can pave the way to a full exploitation of stress as a primary control parameter. It is, for example, known that stresses promote particle mobility at small length scales, e.g., in colloidal glasses, gels, and metallic glasses, but this connection still remains essentially qualitative. Exploiting a preparation protocol that leads to colloidal glasses with an exceptionally directional built-in stress field, we characterize the stress-induced dynamics and sh

SUBMITTER: Dallari F 

PROVIDER: S-EPMC7083620 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature