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Dynamics of surfactant-driven fracture of particle rafts.

Abstract:

We investigate the dynamic fracture of a close-packed monolayer of particles, or particle raft, floating at a liquid-gas interface induced by the localized addition of surfactant. Unusually for a two-dimensional solid, our experiments show that the speed of crack propagation here is not affected by the elastic properties of the raft. Instead it is controlled by the rate at which surfactant is advected to the crack tip by means of the induced Marangoni flows. Further, the velocity of propagati...

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Publication status:
Published

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Journal:
Physical review letters
Volume:
96
Issue:
17
Pages:
178301
Publication date:
2006-05-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:37242f8a-c88b-45c3-ae42-f538a674db38
Source identifiers:
187625
Local pid:
pubs:187625

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