Moulds, dies and cutting tools are subject to high mechanical stress and/or thermal stress that, over time, result in failure in such tooling. In the manufacturing process of such tools there are several steps and, among ...

This work shows a study of the tribological and corrosive behaviour of AISI 4140 steel previously quenched and tempered, plasma nitrided and then coated with CrN thin film, in contact with hydrated ethanol fuel. The ...

Currently there is a large growth in the use of thermoplastic composites reinforced with long glass fiber. These composites have the mechanical properties required for structural and automotive applications, because they ...

In this work, amorphous hydrogenated carbon (a-C:H) thin films were deposited using a simple, low cost and efficient pulsed DC - plasma-enhanced chemical vapor deposition technique improved by electrostatic confinement ...

The search for renewable energy sources is a subject of great interest worldwide due to growing energy demand, instability in oil prices and environmental problems. In this context, the self-assembled thin films have ...

Environmental and energy sustainability issues have promoted the search for biofuels produced from renewable sources, such as ethanol obtained from sugarcane processing. However, this new generation of biofuels can cause ...

Composites of high density polyethylene (HDPE) with waste textile fiber (WTF) with optimized mechanical properties were developed in order to make possible the recycling these residues. In order to accomplish this goal, ...

In the present work we investigated the mechanical and microstructural proprieties of the ZSTE380 and DOGAL800 high strength low alloys steels (HSLA), comparing to the conventional ZAR230 steel, before and after welding. ...

This work is focused at development and evaluation of confection methods of short fibers hybrid mants aiming attend the necessities of automobile industry in the production of small parts with smaller cost and specific ...

The requirements to achieve what is demanded by the environmental laws make important the use of areas for sanitary landfills. The adequate disposal of waste associated with the current legislation also demands larger ...