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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 ...
Agentes mineralizadores e seus efeitos nas características morfológicas e físico-químicas de aluminas calcinadas
(Universidade Federal de São Carlos, 2015-08-31)
Calcination is an important step in the alumina production process, affecting the final properties of the resulting powder and the attained product. Over the previous decades, attempts have been conducted to understand ...
Influência da redução do tempo de tratamento térmico de homogeneização contínua na microestrutura e qualidade metalúrgica de tarugos de alumínio, liga 6063 e diâmetro de 6”
(Universidade Federal de São Carlos, 2014-07-28)
The homogenizing heat treatment of aluminium billets has direct influence on extrusion process productivity, surface quality and mechanical properties of extruded shapes. The homogenizing process parameters that impacts ...
Transformadores elétricos com núcleo de liga amorfa para aplicação em aeronaves
(Universidade Federal de São Carlos, 2015-04-28)
In order to reduce the mass of eletrical transformers and generators in aircrafts, many manufacturers have adopted 400 Hz as the operation of these devices. However this frequency causes increased core losses which were ...
Laminação sob atmosfera controlada dos sistemas MgH2 e MgH2 - LaNi5 para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2016-08-04)
Magnesium hydride is a promisor candidate for H2 storage, manly due its high hydrogen gravimetric capacity (7.6% wt), low density, abundance and low cost. However, its
H-absorption/desorption occurs only at temperatures ...
Expansão por umidade de revestimentos cerâmicos : métodos de medida e variáveis envolvidas
(Universidade Federal de São Carlos, 2015-08-05)
The expansion by humidity (EPU) is characterized by the increase in the size of the ceramic body when in contact with water in liquid or vapor. The phenomenon can contribute to the development of severe pathologies in ...
Avaliação da tendência à formação de fase vítrea nas ligas à base de alumínio do sistema Al-Y-Fe
(Universidade Federal de São Carlos, 2009-08-03)
The present work aimed to study the glass-forming ability of the aluminum-itrium-iron (Al-Y-Fe) alloys. The work included the preparation of samples through the melt-spinning technique and varying the composition of the ...
Análise da influência das condições de processamento na morfologia e nas propriedades de blendas poliméricas PBT/ABS moldadas por injeção
(Universidade Federal de São Carlos, 2011-06-29)
A study on the correlation of blend morphology, properties, the injection molding process and manufacturing methods of polymeric blends constituted of PBT and ABS was proposed. Thus, uncompatibilized PBT/ABS blends have ...
Processamento e caracterização de mantas de nanofibras eletrofiadas e orientadas de Poli(fluoreto de vinilideno)
(Universidade Federal de São Carlos, 2009-11-10)
In this work was developed a collector to process aligned uniaxially nanofibers mats and with low dimensions suitable for applications such as sensor or transducer. Such nanofibers mats may have applications where control ...
Modificação por nitretação a plasma das superfícies dos aços AISI-4140, AISI-420C e DIN16MnCr5
(Universidade Federal de São Carlos, 2011-05-26)
Plasma nitriding is a surface modification technique used for improving hardness, wear resistance, and fatigue. In this work, samples of AISI-4140, DIN16MnCr, and AISI-420C steels were heat treated, forming martensitic ...