TITLE

Transition of deformation and fracture behaviors in nanostructured face-centered-cubic metals

AUTHOR(S)
Hongqi Li; Ebrahimi, Fereshteh
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/24/2004, Vol. 84 Issue 21, p4307
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Tensile stress–strain curves demonstrate that single-phase nanocrystalline face-centered-cubic (fcc) metals are intrinsically ductile and their failure begins with necking. However, the area reductions and the fracture behaviors were found to be dependent on the grain size. When plastic deformation is governed by dislocation activity, the nanocrystalline samples behave similar to the conventional coarse-grained materials. As the grain size is reduced to the regime where grain boundary sliding dominates, the material shows very high strain-hardening rate and the tensile samples fail by microcracking with no noticeable reduction in area. © 2004 American Institute of Physics.
ACCESSION #
13077495

 

Related Articles

  • Preparation of a functional nanofibrous polymer membrane incorporated with poly(2-aminothio phenol) stabilized gold nanoparticles. Shanmugasundaram, Komathi; Subramanian, Palaniappan; Paramasivam, Manisankar; Iyengar, Gopalan Anantha; Kwang-Pill Lee // Gold Bulletin;2011, Vol. 44 Issue 1, p37 

    Functional nanofibrous polymer membranes were prepared by incorporating poly(2-aminothio phenol) (P2AT) stabilized Au NPs onto electrospun polyvinylidene fluoride (PVdF) nanofibers (designated as P2AT-Au NPs@PVdF-NFM). The preparation of P2AT-Au NPs@PVdF-NFM involves two steps: loading of 2AT...

  • Various Prospects of Nano Technology. Singhal, Tarun; Rana, Deepak; Dewangan, Arvind; Agarwal, Nitin // International Journal of Nanotechnology & Applications;2010, Vol. 4 Issue 2, p125 

    Nanotechnology is the science of the small; the very small. It is the use and manipulation of matter at a tiny scale. At this size, atoms and molecules work differently, and provide a variety of surprising and interesting uses. In this paper we tried to touch every aspect of nanotechnology along...

  • Reduction of crystalline iron(III) oxyhydroxides using hydroquinone: Influence of phase and particle size. Amy J. Anschutz; R. Lee Penn // Geochemical Transactions;Sep2005, Vol. 6, p60 

    Iron oxides and oxyhydroxides are common and important materials in the environment, and they strongly impact the biogeochemical cycle of iron and other species at the Earth’s surface. These materials commonly occur as nanoparticles in the 3–10 nm size range. This paper...

  • Rapid biological synthesis of silver nanoparticles using plant leaf extracts. Jae Song; Beom Kim // Bioprocess & Biosystems Engineering;Jan2009, Vol. 32 Issue 1, p79 

    Abstract  Five plant leaf extracts (Pine, Persimmon, Ginkgo, Magnolia and Platanus) were used and compared for their extracellular synthesis of metallic silver nanoparticles. Stable silver nanoparticles were formed by treating aqueous solution of AgNO3 with the plant leaf extracts as...

  • Newer nanoparticles in hyperthermia treatment and thermometry. C. Chen // Journal of Nanoparticle Research;Apr2009, Vol. 11 Issue 3, p671 

    Abstract  Heating tumors by nanoparticles and resistance in hypoxic tumor cells to a high temperature is emerging as an effective tool in therapeutic oncology as nanomedicine tool. The art of imaging temperature in a tumor at various locations is emerging as the selective approach of...

  • Airborne nanoparticle exposures associated with the manual handling of nanoalumina and nanosilver in fume hoods. Su-Jung Tsai; Earl Ada; Jacqueline Isaacs; Michael Ellenbecker // Journal of Nanoparticle Research;Jan2009, Vol. 11 Issue 1, p147 

    Abstract  Manual handling of nanoparticles is a fundamental task of most nanomaterial research; such handling may expose workers to ultrafine or nanoparticles. Recent studies confirm that exposures to ultrafine or nanoparticles produce adverse inflammatory responses in rodent lungs and...

  • Formation of CdTe nanostructures with dot, rod, and tetrapod shapes. Jia-Yu Zhang; Yu, William W. // Applied Physics Letters;9/18/2006, Vol. 89 Issue 12, p123108 

    Colloidal dot-, rod-, and tetrapod-shaped CdTe nanocrystals (NCs) are obtained by varying the precursor concentration and the ligands. Both the dot- and rod-shaped NCs are of zinc-blende phase, whereas the tetrapod-shaped NCs are a mixture of zinc-blende and wurtzite structures. It is proposed...

  • Testing Nanotoxicity.  // Technology Review;Sep2008, Vol. 111 Issue 5, p108 

    The article offers information on the study conducted by researchers on the evaluation of nanotoxicity in the U.S. Researchers have developed a way to evaluate the safety of nanoparticles by comparing them to nanoparticles already tested for toxicity and determined the effects of the different...

  • Nanomechanical method to gauge emission quantum yield applied to nitrogen-vacancy centers in nanodiamond. Frimmer, Martin; Mohtashami, Abbas; Femius Koenderink, A. // Applied Physics Letters;3/25/2013, Vol. 102 Issue 12, p121105 

    We present a technique to nanomechanically vary the distance between a fluorescent source and a mirror, thereby varying the local density of optical states at the source position. Our method can, therefore, serve to measure the quantum efficiency of fluorophores. Application of our technique to...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics