http://imechanica.org/node/2330 Comments for "Fabrication and Characterization of Patterned Single-Crystal Silicon Nanolines" en http://imechanica.org/node/2330 <p> <strong><br /> B. Li, M. K. Kang, K. Lu, R. Huang, P. S. Ho, R. A. Allen, and M. W. Cresswell, Nano Letters 8, 92 -98 (2008).</strong><font face="Times" size="3"><strong> </strong>(</font><font face="times new roman,times" size="3"><span class="textsmall">Web Release Date: 07-Dec-2007; DOI: </span><a href="http://dx.doi.org/10.1021/nl072144i" class="link">10.1021/nl072144i</a>)</font> </p> <p> <img src="///C:/DOCUME%7E1/ruihuang/LOCALS%7E1/Temp/moz-screenshot.jpg" alt="" /> </p> <p> &nbsp;<img src="http://pubs.acs.org/isubscribe/journals/nalefd/asap/figures/nl072144in00001.gif" alt="" vspace="5" /> </p> <p> <font face="Times"><font size="3">This letter demonstrates a method to fabricate single-crystal Si nanolines, with rectangular cross sections and atomically flat sidewalls. The high quality of these nanolines leads to superb mechanical properties, with the strain to fracture measured by nanoindentation tests exceeding 8.5% for lines of 74 nm width. A large displacement burst before fracture was observed, which is attributed to a buckling mechanism. Numerical simulations show that the critical load for buckling depends on the friction at the contact surface.</font> </font> </p> <p> <font face="Times" size="3"><br /> </font> </p> <br class="clear" /> http://imechanica.org/node/2330#comments research buckling fracture friction nanoindentation nanomaterials nanostructures R. Huang Group Research Tue, 20 Nov 2007 13:28:19 -0500 Minkyoo Kang 2330 at http://imechanica.org