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Estudo da influência da adição de compostos de boro na resistência à oxidação de refratários a base de carbeto de silício-liga de nitreto.
(Universidade Federal de São Carlos, 2004-08-06)
In this work, boron was added in a commercial silicon carbide bonded silicon nitride refractory and its influence has been evaluated. These materials have been used as high temperature structural ceramic due to their ...
Desenvolvimento de metodologia para identificação de oportunidades de inovação tecnológica em tratamento de superfícies de jóias folheadas
(Universidade Federal de São Carlos, 2006-08-07)
Technological innovation has been greatly discussed worldwide for its central
role in economy. One important factor to innovation is the identification of
technological opportunities. Information on customer requirements ...
Resistência de linha de solda em moldados por injeção de compósitos de polipropileno com talcos e fibra de vidro.
(Universidade Federal de São Carlos, 2003-07-03)
The presence of weld lines in injection moulded reinforced thermoplastics
contributes towards substantial reduction in mechanical properties, due to
unfavourable orientation of the reinforcement in the weak plane of the ...
Influência das variáveis do processo de mistura na morfologia e propriedades finais de filmes tubulares de nanocompósitos de polietileno de alta densidade
(Universidade Federal de São Carlos, 2006-12-15)
Blown of films is one of the most important processes of polymers for packaging application. The final properties are strongly linked with the morphology developed during the processing. The relationship between process ...
Nanocompósitos à base de MG: processamento, estrutura e propriedades de novos materiais para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2006-02-17)
Magnesium is light, abundant and it can store up to 7.6 wt. % of
hydrogen forming the hydride MgH2 and therefore it is a promising material for
hydrogen storage. However, the H-sorption occurs at relatively high
temperatures ...
Correlações entre propriedades dinâmico-mecânicas e durabilidade sob fadiga mecânica em compósitos de polipropileno/polipropileno maleificado/fibra de vidro
(Universidade Federal de São Carlos, 2006-09-06)
Although the influence of interfacial adhesion on short-term mechanical
performance of fiber-reinforced thermoplastic composites has been well
established, very little published information is available on the influence ...
Vitrocerâmicas do sistema Li2O - Al2O3 - SiO2 (LAS) via sinterização com cristalização concorrente
(Universidade Federal de São Carlos, 2007-03-02)
LAS (Li2O-Al2O3-SiO2) glasses have been often used to produce glass-
ceramics with near zero thermal expansion coefficient. These glass-ceramics
are very important for applications that require high thermal shock ...
Adesão borracha-latão: a influência do cobalto, do sistema HMMM (hexametoximetilmelamina)-resorcinol e da temperatura na interface
(Universidade Federal de São Carlos, 2006-12-18)
Using a blank compound as reference and brass coated steel tire cords
with 64 and 68.2 % of cooper content, it was studied the effect of the
ingredients cobalt and the HMMM-resorcinol system, and the vulcanization
temperature ...
Determinação das propriedades mecânicas da liga A356 conformada por spray para diferentes teores de ferro e condições de processamento
(Universidade Federal de São Carlos, 2008-04-22)
The aims of this work were the microstructural and tensile properties characterization of the hypoeutectic spray formed Al-Si 356, with and without contamination for iron, spray formed, extruded and heat treatment. The ...
Avaliação do grau de gelificação de formulações de PVC rígido utilizando o método de ultrassom
(Universidade Federal de São Carlos, 2009-09-10)
The determination of the gelation degree is an important tool for predicting the properties of final products made of rigid PVC compounds. Thus, it is evident the need of a quick and effective test method that can be applied ...