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Diferentes dopagens e intercamadas contendo silício: otimização da adesão de revestimentos de a-C:H sobre aço
(2018-10-31)
Diamond-like carbon (DLC) coatings combine high wear resistance and low friction coefficient. Due to these properties, DLC can be applied on metal parts to facilitate the conformation process in bending tools and also for ...
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 ...
Propriedades mecânicas e microestruturais de aços de alta resistência e baixa liga soldados
(2014-05-21)
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. ...
Efeito da adição de boro na microestrutura, dureza, resistência à oxidação e ao desgaste do aço inoxidável austenítico 316L sinterizado.
(2018-05-23)
This work analyses boron additions to AISI 316L austenitic stainless steels, as a sintering additive in the powder metallurgy process. The effect of boron addition was investigated in terms of densification, microstructure, ...
Avaliação de métodos de fabricação de mantas híbridas de fibras curtas de vidro e sisal em compósitos poliméricos
(2014-05-22)
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 ...
Avaliação de óleo vegetal natural e epoxidado em composições elastoméricas para banda de rodagem
(2017-07-05)
The incorporation of vegetable oils into the development of tread rubber formulation has been one of the alternatives to reduce the use of oil with high contents of aromatic polycyclics. Many studies suggest the substitution ...
Aproveitamento de resíduos de granalha de aço-carbono por metalurgia do pó
(2017-07-05)
This research has determined the parameters of powder metallurgy in order to use the wasted powder from the shot blasting process and transform it in components. The wasted was evaluated by its physical and micro-structural ...
Avaliação mecânica e tribológica de compósitos alumina-nióbio obtidos via sinterização por plasma pulsado
(2017-07-05)
Este trabalho apresenta um estudo das propriedades mecânicas e tribológicas de compósitos de alumina reforçados com partículas de nióbio obtidos pela técnica de sinterização por plasma pulsado (Spark Plasma Sintering – ...
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 ...