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Influência de aditivos pró-degradantes nas degradações abiótica e biótica do polietileno de alta densidade
(Universidade Federal de São Carlos, 2015-03-06)
High density polyethylene (HDPE) is widely used in the manufacture of
packaging disposables and in order to minimize the environmental impact
caused by disposal, have been incorporated, into the HDPE, additives that
promises ...
Modificação microestrutural da liga de magnésio AZ31 por fricção e mistura a altas velocidades
(Universidade Federal de São Carlos, 2015-07-03)
Due to the current growth in the fossil fuels consumption, there is a great concern about the increase in pollutant emissions. In order to reduce these emissions, research indicates that the decrease in vehicle weight can ...
Caracterização estrutural e monitoramento ótico da cristalização de nanocompósitos de polietileno de alta densidade com partículas de diferentes geometrias durante a moldagem por injeção
(Universidade Federal de São Carlos, 2014-03-06)
The main objectives of this project were to study the morphology, the crystallization
kinetics and to monitor on-line the crystallization during the injection
molding process using an optical system of nanocomposites of ...
Influência do defeito tipo cunha no comportamento mecânico de juntas de liga de alumínio 2198 soldadas por fricção por ponto (FSpW)
(Universidade Federal de São Carlos, 2015-02-01)
One of the main considerations in selecting materials to manufacture
aircraft structures is related to weight saving [1]. In this context, the promising
aluminum-lithium alloys have been receiving special attention in ...
Study of rutile-supported anatase nanostructured films as photocatalysts for the degradation of water contaminants
(Universidade Federal de São Carlos, 2015-03-30)
This dissertation studies the application of rutile substrate as an alternative support for anatase films, specifically, on the growth and properties of anatase films. The films were utilized as catalysts for the ...
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais
(Universidade Federal de São Carlos, 2017-05-19)
The ever-growing environmental concern arising from the unrestricted exploitation of fossil raw materials for the massive production of non-biodegradable materials, guided by the rapid increase in the world population as ...
Desenvolvimento de novas ligas quasicristalinas à base de alumínio
(Universidade Federal de São Carlos, 2018-03-21)
Quasicrystalline phases are known for presenting particular crystallographic characteristics that make them a separate group of solid materials. Most of these phases are Al-based and they form in compositions near complex ...
Microestrutura e propriedades mecânicas de vitrocerâmicos do sistema Li2O – CaO – SiO2
(Universidade Federal de São Carlos, 2013-03-12)
An interesting characteristic of the Li2O-CaO-SiO2 glass-forming system is the possibility of obtaining certain crystalline phases and morphologies that may lead to tough glass-ceramics. However, very few published works ...
Aprimoramento de um detector de espalhamento de luz laser em baixo ângulo e seu uso in-line na caracterização morfológica de misturas poliméricas bifásicas
(Universidade Federal de São Carlos, 2019-02-27)
A new prototype of the optical detector based on low angle laser light scattering (LALLS) was developed in order to follow in-line the morphology of polymer blends and composites during processing. For this, light from a ...
Análise da microestrutura, parâmetros térmicos e de propriedades mecânicas na solidificação de ligas com alto teor de cobre Al-(x)%Cu-7%Si
(Universidade Federal de São Carlos, 2019-02-26)
Ternary Al-15%Cu-7%Si and Al-22%Cu-7%Si alloys specimens were obtained by transient directional solidification (DS). This technique is able to provide a very large range of cooling rates and microstructures to be correlated ...