TY - JOUR
T1 - Scanning force microscope study of detachment of nanometer adhering particulates
AU - Dickinson, J. T.
AU - Hariadi, R. F.
AU - Scudiero, L.
AU - Langford, S. C.
N1 - Funding Information:
This work was supported by the National Science Foundation under Grant CMS-98-00230. We wish to thank Dr John Hutchinson, Harvard University, for helpful discussions on fracture mechanics.
PY - 2000
Y1 - 2000
N2 - We employ salt particles deposited on soda lime glass substrates as a model system for particle detachment in chemically active environments. The chemical activity is provided by water vapor, and detachment is performed with the tip of a scanning force microscope. The lateral force required to detach nanometer-scale salt particles is a strong function of particle size and relative humidity. The peak lateral force at detachment divided by the nominal particle area yields an effective interfacial shear strength. The variation of shear strength with particle size and humidity is described in terms of chemically assisted crack growth along the salt/glass interface.
AB - We employ salt particles deposited on soda lime glass substrates as a model system for particle detachment in chemically active environments. The chemical activity is provided by water vapor, and detachment is performed with the tip of a scanning force microscope. The lateral force required to detach nanometer-scale salt particles is a strong function of particle size and relative humidity. The peak lateral force at detachment divided by the nominal particle area yields an effective interfacial shear strength. The variation of shear strength with particle size and humidity is described in terms of chemically assisted crack growth along the salt/glass interface.
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U2 - 10.1016/S0921-5093(00)00866-2
DO - 10.1016/S0921-5093(00)00866-2
M3 - Conference article
AN - SCOPUS:0034275774
SN - 0921-5093
VL - 288
SP - 182
EP - 186
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 2
T2 - E-MRS Symposium H-strain in Materials: Analysis, Relaxation and Properties (Joint Symposium with FEMS)
Y2 - 1 June 1999 through 4 June 1999
ER -