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|Title:||Structure, elastic properties and strength of amorphous and nanocomposite carbon||Authors:||Remediakis, Ioannis N.
Fyta, Maria G.
Kelires, Pantelis C.
|Keywords:||Amorphous carbon;Nanocomposite carbon;Mechanical properties;Fracture||Issue Date:||2007||Publisher:||Elsevier||Source:||Diamond and Related Materials. Volume 16, Issue 10, October 2007, Pages 1835-1840||Abstract:||We study theoretically the equilibrium structure, as well as the response under external load, of characteristic carbon-based materials. The materials considered include diamond, amorphous carbon (a-C), “amorphous diamond” and nanocomposite amorphous carbon (na-C). A universal bulk modulus versus density curve is obeyed by all structures we consider. We calculate the dependence of elastic constants on the density. The strength of a-C was found to increase in roughly a linear manner, with increasing concentration of four-fold atoms, with the maximum stress of the strongest a-C sample being about half that of diamond. The response of na-C to external load is essentially identical to the response of the embedding a-C matrix.||URI:||http://ktisis.cut.ac.cy/handle/10488/1223||DOI:||http://dx.doi.org/10.1016/j.diamond.2007.08.010||Rights:||© 2007 Elsevier B.V.||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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