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Preparação e caracterização de revestimentos híbridos de poliuretano-ureia a partir de fontes renováveis
(2016-10-17)
Motivation of the work was to investigate the synthesis of polyols obtained from air induced oxidation of the commercial soybean oil and use these as precursors in the preparation of polyurethane-urea hybrid coatings. ...
Desenvolvimento e caracterização de um sensor magnetoelástico de deformação
(2018-04-28)
Amorphous metals have been shown to have magnetomechanical properties which are superior to those of any other magnetic materials. This has allowed their usage in a growing number of sensing purposes. The capacity of ...
Propriedades estruturais e mecânicas do carbeto de vanádio obtido por magnetron sputtering reativo
(2014-05-22)
The use of hard coatings has many applications in the metal-mechanic industry due to the improvement of surface properties such as high hardness and wear and corrosion resistance. One of the most important techniques for ...
Avaliação das técnicas de dispersão mecânica e ultrassônica de nanotubos de carbono de paredes múltiplas em resina epóxi
(2014-06-03)
In this study nanotubes/epoxy composites were produced in order to evaluate which of the two studied techniques would result in a better degree of dispersion and unentanglement of carbon nanotubes in epoxy resin. The ...
Deposição de filmes finos de nitreto de zircônio para aplicação em biomateriais
(2014-06-04)
Zirconium nitride (ZrN) nanometric films were deposited onto different substrates, in order to study the surface microstructure and also to investigate the electrochemical behavior to obtain a better composition that ...
Revestimentos protetores de nitreto de silício para aplicações tribológicas extremas
(2014-06-03)
The performance of engineering components is closely tied to surface phenomena, because it acts as an interface between the component and the environment that surrounds it. The choice of a suitable material with surface ...
Metodologia para a determinação das propriedades mecânicas de compósitos de poliamida 6.6 reforçados por fibras de vidro longas através da simulação de injeção
(2017-12-20)
The use of long glass fiber-reinforced thermoplastic composites has increased considerably in the last years. However, the mechanical properties of these materials are strongly dependent on their microstructure (orientation ...
Influência da temperatura de recozimento na conformabilidade da chapa trimetálica - 304L/A1/430 obtida por laminação a frio
(2023-12-29)
The industrial expansion has propelled the search for more efficient production processes and superior-quality materials capable of combining diverse properties. In this scenario, multilayer materials stand out, enabling ...