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Desempenho de filmes soprados multicamada de blendas de polipropileno e copolímeros de etileno
(Universidade Federal de São Carlos, 2012-08-30)
Polypropylene (PP) and polyethylene (PE) are widely used in the flexible packaging market individually as mono or multilayer films. Blending PP and PE in coextruded films has shown limited commercial applications due to ...
Armazenagem de hidrogênio em nanocompósitos MgH2- aditivos à base de Fe e Nb, produzidos por moagem de alta energia e laminação a frio
(Universidade Federal de São Carlos, 2012-12-03)
Mg-based nanocomposites are considered promising materials for hydrogen storage in the solid state. In this work, Mg-based nanocomposites containing iron-based (Fe, Fe2O3, FeF3) and niobium-based (Nb, Nb2O5, NbF5) additives ...
Aplicação de estruturas zeolíticas de imidazólio (ZIFs) no desenvolvimento de membranas de matriz mista para separação de gases
(Universidade Federal de São Carlos, 2012-12-13)
Mixed matrix membranes based on a glassy polymer and a zeolite with organic character were developed, in order to evaluate whether the organic character of the ZIF-8 would favor its incorporation in the polymer matrix as ...
Concretos refratários contendo agregados eutéticos eletrofundidos: energia de fratura e a resistência ao dano por choque térmico
(Universidade Federal de São Carlos, 2012-07-30)
The use of fused alumina-zirconia and mullite-zirconia eutectic aggregates can be an interesting choice to toughening high alumina castables, in order to produce good thermal shock damage resistant material. As a remarkable ...
Avaliação do dano por choque térmico em concretos refratários via espectroscopia acústica ressonante não-linear
(Universidade Federal de São Carlos, 2012-03-02)
In this thesis the Non-linear Resonant Acoustic Spectroscopy Technique used to evaluate the mesoscopic non-linearity was incorporated into the Impulse Excitation Technique, which is extensively applied to the evaluation ...
Estudo in vitro e in vivo da osseointegração de implantes de titânio com superfícies biomimetizadas
(Universidade Federal de São Carlos, 2012-03-30)
The researchrs conducted with implants are seek to improve the quality of products in order to reduce the waiting time after the surgery to undergo implants on chewing loads safely. To meet this expectation it must be ...
Reciclagem de cavacos de ligas de alumínio 7050-T7451 utilizando conformação por spray e tratamentos termomecânicos
(Universidade Federal de São Carlos, 2012-08-09)
The aim of this work is to conjugate a sort of known processing techniques in to a machining chips recycling route. These are generate during airframe primary parts from AA 7050-T7451, purchased according to AMS 4050H. The ...
Influência da geometria da nanocarga na estruturação, orientação e propriedades de filmes tubulares de nanocompósitos de PA6
(Universidade Federal de São Carlos, 2012-06-13)
The structure and morphology of polymers and consequently their properties are dependent on the processing conditions. During the blown film process, high shear and elongational flows can induce a preferred orientation of ...
Desenvolvimento de blendas nanoestruturadas SAN/PBT modificadas com copolímeros acrílicos reativos
(Universidade Federal de São Carlos, 2012-08-02)
In this work we have obtained transparent nanoblends of poly(styrene-coacrylonitrile) (SAN) as matrix and poly(butylene terephthalate) as a nanometric phase. The materials were produced by means of reactive mixing in a ...
Módulo elástico como ferramenta para o acompanhamento de transformações in situ e desenvolvimento de concretos refratários
(Universidade Federal de São Carlos, 2012-09-12)
Refractory castables are multiphase materials usually exhibiting complex heterogeneous microstructures, which have their mechanical strength affected by chemical and structural changes. These microstructural changes directly ...