Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/7455
Title: Insights into the fracture mechanisms and strength of amorphous and nanocomposite carbon
Authors: Fyta, Maria G. 
Remediakis, Ioannis N. 
Kelires, Pantelis C
Keywords: Carbon
Computer simulation
Crystals
Diamonds
Molecular dynamics
Nanostructured materials
Fracture mechanics
Issue Date: 2006
Publisher: APS American Physical Society
Source: Physical Review Letters,2006, Volume 96, Issue 18
Abstract: Tight-binding molecular dynamics simulations shed light into the fracture mechanisms and the ideal strength of tetrahedral amorphous carbon and of nanocomposite carbon containing diamond crystallites, two of the hardest materials. It is found that fracture in the nanocomposites, under tensile or shear load, occurs intergrain and so their ideal strength is similar to the pure amorphous phase. The onset of fracture takes place at weakly bonded sp3 sites in the amorphous matrix. On the other hand, the nanodiamond inclusions significantly enhance the elastic moduli, which approach those of diamond.
URI: http://ktisis.cut.ac.cy/handle/10488/7455
ISSN: 0031-9007 (print)
1079-7114 (online)
DOI: 10.1103/PhysRevLett.96.185503
Rights: © 2006 The American Physical Society
Appears in Collections:Άρθρα/Articles

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