%0 Journal Article
%T Compliant and Hard Cu(Ni)-C Nanocomposite Coatings
%A Eric Brannigan
%A Alan F. Jankowski
%J Journal of Materials Science Research
%D 2013
%I 
%R 10.5539/jmsr.v2n2p60
%X Copper-Nickel-Carbon nanocomposite coatings are synthesized by the sequential sputter deposition of carbon (C) and a copper-nickel (Cu1-xNix) alloy. A distinct transition occurs as the Ni content (x) is increased from 0 to 1.00 during the Cu1-xNix alloy deposition. The coating morphology changes from a dispersion of metallic Cu-particles in a C matrix to a well-defined nanolaminate structure. Between these morphological forms, a new prototype nanocomposite is produced at a Ni concentration (x) of 0.1-0.4 with the appearance of an interpenetrating matrix structure of C and Cu(Ni). This morphological structure has both a high 24-27 GPa hardness (H) and a low elastic modulus (E) of 144-169 GPa that results in a record high values of H/E at 1/6 and a H3/E2 at 0.67-0.69 GPa in a novel compliant and hard coating.
%U http://www.ccsenet.org/journal/index.php/jmsr/article/view/23771