In this work, a simulation routine of carbon random networks, with variable hybridization, oriented to calculate the coeÿcient of thermal expansion, is presented. The method uses an algorithm for the generation of carbon ...

Control and reduction of friction can help in the elaboration of strategies of energy efficiency and in the reduction of carbon dioxide (CO2) emission. Although there are well established phenomenological laws for friction, ...

The automotive industry is responsible for a large share of the of the global market consumption of polymeric materials, which represent today the second predominant material in vehicles. Polymers combine properties such ...

Contamination by bacterial biofilms has a strong negative impact, especially when given on the surface of prostheses, implants, pins and other medical-surgical devices. In this study metal samples of Titanium cp and AISI ...

The surface modification of polymeric materials has led to significant design advances of new industrial applications, besides allowing the replacement of engineering polymers by lower cost materials. Thus, in the present ...