Mechanical oscillation accelerating nucleation and nuclei growth in hard-sphere colloidal glass.

ABSTRACT: Crystallization from amorphous solids is generally caused by activating phonons in a wide frequency range during heat treatment. In contrast, the activation of phonons in a narrow frequency range using ultrasonic treatment also causes crystallization below the glass transition temperature. These behaviors indicate that crystallization is related to the atomic motion in the glass state, and it is suggested that the activation of specific atomic motion can cause crystallization without increasing temperature. In this study, we observe nucleation and nuclei growth caused by mechanical oscillation in a hard-sphere colloidal glass and evaluate the effect of mechanical oscillation on the structural evolution in the early stage of the crystallization. Oscillation between 5 and 100 Hz is applied t

SUBMITTER: Nakamura N 

PROVIDER: S-EPMC6731250 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature