Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mechanism of stress lock-in. ( Reproduced with permission from reference #14). (a) Stress diffusion: Mechanical stress generated with a long period of time results in stress (vibration) diffusion. (b) Stress lock-in: Mechanical stress generated within a very short period of time results in stress lock-in causing rise in pressure and fracture of the particle.
