TY - JOUR
T1 - Hackle or textured mirror? Analysis of surface perturbation in single crystal silicon
AU - Sherman, Dov
PY - 2003/2/15
Y1 - 2003/2/15
N2 - The fracture surfaces of strip-like single crystal silicon specimens, loaded statically under three-point bending to fracture, revealed an exceptional behavior of surface perturbations generated during the unstably propagating crack. The observed perturbations presented a unique opportunity to study and interpret the relationship between the local crack tip velocity and the mirror and the hackle mechanisms. We show that the high amplitude, more disturbed perturbations are generated at low local crack front velocity, and therefore can termed as a mirror, while the lower amplitude, relatively smooth perturbations are associated with the fastest local crack front velocity, which is actually a hackle mechanism, in contrast to the current knowledge of crack velocity and the associated mirror and hackle mechanisms.
AB - The fracture surfaces of strip-like single crystal silicon specimens, loaded statically under three-point bending to fracture, revealed an exceptional behavior of surface perturbations generated during the unstably propagating crack. The observed perturbations presented a unique opportunity to study and interpret the relationship between the local crack tip velocity and the mirror and the hackle mechanisms. We show that the high amplitude, more disturbed perturbations are generated at low local crack front velocity, and therefore can termed as a mirror, while the lower amplitude, relatively smooth perturbations are associated with the fastest local crack front velocity, which is actually a hackle mechanism, in contrast to the current knowledge of crack velocity and the associated mirror and hackle mechanisms.
UR - http://www.scopus.com/inward/record.url?scp=0037441037&partnerID=8YFLogxK
U2 - 10.1023/A:1021809014702
DO - 10.1023/A:1021809014702
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0037441037
SN - 0022-2461
VL - 38
SP - 783
EP - 788
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 4
ER -