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Análise dos modos de falha do revestimento de AlCrN depositado por PVD sobre H13
(2014-06-23)
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 ...
Comportamento do desgaste e posterior corrosão do sistema duplex AISI 4140 nitretado/CrN em bioetanol combustível
(2014-06-24)
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 ...
Avaliação do teor dos aditivos estabilizantes e das propriedades mecânicas em compostos elastoméricos para lateral de pneu de passeio submetidos ao envelhecimento natural e acelerado
(2015-02-11)
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 ...
Processamento reativo de nanocompósitos iPP-POSS
(2015-10-06)
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 ...
Avaliação físico-química e mecânica de zircônia nitretada a plasma
(2015-05-11)
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 ...
Adaptação de forno micro-ondas doméstico para preparação de poliedros oligoméricos silsesquioxanos - POSS
(2015-09-14)
Hybrid materials, such as polyhedral oligomeric silsesquioxanes (POSS), nowadays have received special attention because they are materials that have a synergistic combination of organic and inorganic materials properties. ...
Estudo morfológico de uma blenda de I-PP e EPDM com argila
(2015-10-07)
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 ...
Avaliação da corrosão no aço AISI 4140 nitrocarbonetado e pós-oxidado a plasma em etanol hidratado combustível
(2014-06-24)
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 ...
Efeito do pó de casca de noz pecan nas propriedades de bandas de rodagem de pneus
(2019-09-11)
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 ...
Deposição e caracterização de filmes finos de nitreto de titânio para aplicações decorativas
(2015-02-11)
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 ...