Note: Fast and reliable fracture strain extraction technique applied to silicon at nanometer scale

Passi, Vikram; Bhaskar, Umesh; Pardoen, Thomas; Sodervall, Ulf; Nilsson, Bengt; Petersson, Goran; Hagberg, Mats; Raskin, Jean-Pierre
November 2011
Review of Scientific Instruments;Nov2011, Vol. 82 Issue 11, p116106
Academic Journal
Simple fabrication process and extraction procedure to determine the fracture strain of monocrystalline silicon are demonstrated. Nanowires/nanoribbons in silicon are fabricated and subjected to uniaxial tensile stress along the complete length of the beams. Large strains up to 5% are measured for nanowires presenting a cross section of 50 nm × 50 nm and a length of 2.5 μm. An increase in fracture strain for silicon nanowires (NWs) with the downscaling of their volume is observed, highlighting the reduction of the defects probability as volume is decreased.


Related Articles

  • Fatigue crack growth in micro-machined single-crystal silicon. Renuart, Emily D.; Fitzgerald, Alissa M.; Kenny, Thomas W.; Dauskardt, Reinhold H. // Journal of Materials Research;Sep2004, Vol. 19 Issue 9, p2635 

    Although crystalline silicon is not generally considered susceptible to fatigue crack growth, recent studies suggest that there may be fatigue processes in silicon micro-machined structures. In the present study, a micro-machined fracture specimen geometry was used to examine stable crack growth...

  • Explanation for fracture spacing in layered materials. Bai, T.; Pollard, D.D. // Nature;2/17/2000, Vol. 403 Issue 6771, p753 

    Investigates the full stress distribution between opening-mode fractures in layered materials from which an intuitive physical model of the process of fracture saturation is derived. Proportion of the spacing of fractures in layered materials to the thickness of the fractured layer;...

  • Image force and shielding effects of a moving edge dislocation near a semi-infinite crack. Tsai, Yu-Zen; Lee, Sanboh // Journal of Applied Physics;5/15/1993, Vol. 73 Issue 10, p4869 

    Investigates the image force and shielding effects of a moving edge dislocation near a semi-infinite crack. Simulation of the crack surface by continuous dislocations; Calculation of the stress filed in the region after obtaining the dislocation distribution in the crack; Details of the crack...

  • The role of defects in the tensile properties of silicene. Le, Minh-Quy; Nguyen, Danh-Truong // Applied Physics A: Materials Science & Processing;Mar2015, Vol. 118 Issue 4, p1437 

    Effects of vacancies and Stone-Wales defects on the mechanical properties of silicene are investigated through molecular dynamic finite element method with Tersoff potential. Young's modulus, Poisson's ratio and uniaxial tensile stress-strain curves are considered in the armchair and zigzag...

  • Plastic Constants of Fracture. Khromov, A. I.; Bukhan'ko, A. A.; Kozlova, O. V.; Stepanov, S. L. // Journal of Applied Mechanics & Technical Physics;Mar2006, Vol. 47 Issue 2, p274 

    Based on the theory of an ideal rigid-plastic body, an approach is formulated for determining fracture constants on the basis of standard mechanical tests on uniaxial extension of plane and cylindrical samples. Instead of the experimentally determined characteristics of fracture of materials...

  • Cracking the Secret of Fracture Instabilities.  // American Ceramic Society Bulletin;May2006, Vol. 85 Issue 5, p4 

    The article reports that scientists from Max-Planck-Institute for Metals Research and Massachusetts Institute of Technology have simulated the atomistic mechanisms of crack propagation in brittle materials. The simulation revealed that fracture instabilities are controlled by the properties of...

  • Lifetime of Metals under Biharmonic Loading. Fomichev, P. A. // Strength of Materials;May/Jun2004, Vol. 36 Issue 3, p231 

    A procedure for calculating the lifetime of metals under biharmonic loading is proposed, which is based on the energy-based criterion of fracture and the use of metal cyclic deformation and fatigue characteristics. The data obtained are compared with the known experimental ones.

  • Structural Mechanisms of Fracture of Nanocrystalline Materials. Pozdnyakov, V. A.; Glezer, A. M. // Physics of the Solid State;May2005, Vol. 47 Issue 5, p817 

    Structural mechanisms and features of brittle and quasi-brittle fracture of nanocrystalline materials are theoretically analyzed. The role of size effects and internal stresses caused by a nonequilibrium structure during brittle trans- and intercrystallite fracture is studied. The dependence of...

  • Dislocation generation and crack growth under monotonic loading. Cherepanov, G. P.; Richter, A.; Verijenko, V. E.; Adali, S.; Sutyrin, V. // Journal of Applied Physics;11/15/1995, Vol. 78 Issue 10, p6249 

    Presents information on a study which investigated the processes of crack growth and dislocation emission induced by the crack tip in a crystal with cubic lattice of atoms under plane strain conditions. Elastic field of dislocations near a crack tip; Emission of the Nth pair of dislocations;...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics