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Utilização de concentrados de eva-argila organofílica obtidos por spray drying, drais e extrusão no desenvolvimento de nanocompósitos poliméricos
(Universidade Federal de São Carlos, 2014-12-15)
The objective of this work was the development of polymer
nanocomposites with montmorillonite organoclays (OMMT) using EVA-OMMT
concentrated obtained by spray drying, Drais and extrusion, making the
characterization and ...
Processamento e estudo das propriedades de filmes e peças injetadas de nanobiocompósitos de nanocristais de celulose e matrizes biodegradáveis
(Universidade Federal de São Carlos, 2014-04-04)
This study aimed at evaluating the potential of application of cellulose nanocrystals as reinforcing elements of biodegradable polymeric matrices, in the films and injection molded pieces applications. Two polymeric matrices ...
Estudo de fibras de folhas de abacaxis (gênero Ananas) e sua utilização em compósitos biodegradáveis com matriz de poli(ácido lático) (PLA)
(Universidade Federal de São Carlos, 2014-08-19)
In this work natural fibers from new pineapple varieties were studied aiming at their application as mechanical reinforcement for green polymer composites. Eighteen varieties of pineapple leave fibers (PALFs) were then ...
Influência da adição de Nb, Ti e Zr nas propriedades de fluência da liga HP fundida por centrifugação
(Universidade Federal de São Carlos, 2014-08-05)
This work aimed to evaluate the influence caused by Nb single addition and by Nb-Ti and Nb-Zr combined addition in the high temperature mechanical properties of a centrifugally cast HP alloy. Particular investigation was ...
Efeito do (NaLix)CO3, COM 0 ≤ x ≤ 2, na sinterização e condutividade elétrica do Ce0,8Gd0,2O1,9
(Universidade Federal de São Carlos, 2014-11-26)
The principles of operation of Solid Oxide Fuel Cells (SOFC) and Molten Carbonate Fuel Cells (MCFC) were merged to create a hybrid device, which can combine the advantages and reduce the disadvantages of both cells, improving ...
Efeito do tempo entre passes na interação recristalização-precipitação de um aço inoxidável austenítico com alto teor de nióbio e nitrogênio
(Universidade Federal de São Carlos, 2014-06-27)
In this work was studied the influence of interpass time on the recrystallizationprecipitation interaction occurring during the thermomechanical processing of ISO 5832-9 austenitic stainless steel, which has high contents ...
Desenvolvimento e caracterização de nanocompósitos de blendas de PA6/AES compatibilizadas com copolímero acrílico
(Universidade Federal de São Carlos, 2014-03-31)
Toughened polyamide 6 (PA6) nanocomposites were obtained by incorporation of acrylonitrile-EPDM-styrene (AES). As compatibilizing agents was used the copolymer methyl methacrylate-anhydride (MMA-MA). The effect of the ...
Sinterização em forno de micro-ondas da hexaferrita de bário dopada com cromo
(Universidade Federal de São Carlos, 2014-08-01)
Barium hexaferrite (BaM) is a magnetic ceramic material with a hexagonal crystal structure, which is widely used as a permanent magnet and in electronic devices, magnetic recording media, electromagnetic wave absorbers, ...
Caracterização microestrutural e modelagem do amaciamento dinâmico a quente do aço inoxidável austenítico ASTM F 138, utilizado em implantes ortopédicos
(Universidade Federal de São Carlos, 2014-07-10)
Flow stress curves of ASTM F 138 austenitic stainless steel were obtained through isothermal hot torsion testing in the temperature range of 900- 1200oC and in the strain rate range of 0,01-10s-1, totaling 24 experiments. ...
Ligas metálicas amorfas: um novo método de predição de composição com capacidade de formação de amorfos
(Universidade Federal de São Carlos, 2014-02-21)
This thesis presents the development of a new criterion which can indicate new compositions for amorphous metallic alloys. This new criterion was based on dense packing of spheres combined with the lambda criterion through ...