Bulletin of the American Physical Society
2009 APS March Meeting
Volume 54, Number 1
Monday–Friday, March 16–20, 2009; Pittsburgh, Pennsylvania
Session S1: Poster Session III (1-4:00pm): Polymer Physics II; Phase Transitions; General Theory; Insulators and Dieletrics; Semiconductors; Supplementary Abstracts; Post-Deadline Abstracts
1:00 PM,
Wednesday, March 18, 2009
Room: Exhibit Hall A
Abstract ID: BAPS.2009.MAR.S1.197
Abstract: S1.00197 : Crack branching and viscous fingering at nanoscale in brittle material
Preview Abstract
Abstract
Author:
Deeder Aurongzeb
(University of Maryland, James A. Clark School of Engineering, College Park, MD.)
Cracked surfaces of soda lime glass and single crystal silicon are studied using atomic force microscopy simply by breaking them with impulsive force. We find traces of cavities and reorganized surface structures in both surfaces. At micron scale fractured glass surface exhibits viscous fingering and fractured silicon surface exhibit nanoscale crack branching showing two materials responds to sudden fracture differently. Crack branched surface of Si shows unusually low self --affine exponent and faceted nanoscale organized islands.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.MAR.S1.197
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