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 ...

This study aims at analysing the ideal rate of two stabilizers in elastomeric compounds, used in tires that require a long-term performance, submitted to different kinds of aging. The resistance to the aging can be achieved ...

The interaction modes of polyhedral oligomeric silsesquioxane (POSS) of closed cages with distinct functional groups were evaluated on isotactic polypropylene (iPP) nanostructuration via reactive processing. POSS were ...

This paper presents the nitriding experimental investigation of partially yttria stabilized zirconia (3 mol%), in particular, plasma generated by radiofrequency (RF), using two distinct methods: i) plasma nitriding, by ...

In this work were investigated the morphological, themal and rheological properties of a isotactic polypropylene/ethylene-propylene-diene terpolymer rubber/nanoclay Cloisite 15A composite, prepared by mixed melt and submitted ...

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 ...

The use of natural organic materials in polymer products has attracted great attention in recent years due to economic, environmental and reduction dependence on petroleum based products. In this context, this work aims ...

This work studies the deposition of titanium nitride (TiN) thin films on stainless steel AISI 304 substrate for decorative applications. The films studied here are composed of a layer of Ti working as an interlayer between ...

A sandwich panel consists essentially of two face sheets and may even have metal reinforcements and a core formed, usually by a cellular polymer. The faces of this type of panel may be joined by a structural adhesive or ...