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Size Effects on the Stiffness of Silica Nanowires
Author(s) -
Silva Emílio C. C. M.,
Tong Limin,
Yip Sidney,
Van Vliet Krystyn J.
Publication year - 2006
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200500311
Subject(s) - materials science , stiffness , nanowire , composite material , nanotechnology , atomic force microscopy , schematic , molecular dynamics , chemistry , computational chemistry , electronic engineering , engineering
Small but stiff : Results in the literature display an unexplained elastic weakening of silica nanowires with diameters between 43 and 98 nm. However, our new direct mechanical tests using a scanning probe microscope (see schematic) show that silica wires with diameters as small as 280 nm still exhibit the stiffness of bulk silica, while classical molecular dynamics simulations for diameters up to 6 nm predict a small increase in stiffness.