Composite Component
Mostrando 25-36 de 112 artigos, teses e dissertações.
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25. Evaluation of shear bond strength of two resin-based composites and glass ionomer cement to pure tricalcium silicate-based cement (Biodentine®)
Objectives: Tricalcium silicate is the major constituent phase in mineral trioxide aggregate (MTA). It is thus postulated that pure tricalcium silicate can replace the Portland cement component of MTA. The aim of this study was to evaluate bond strength of methacrylate-based (MB) composites, silorane-based (SB) composites, and glass ionomer cement (GIC) to
J. Appl. Oral Sci.. Publicado em: 2014-07
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26. X-Ray diffraction technique applied to study of residual stresses after welding of duplex stainless steel plates
Duplex stainless steel is an example of composite material with approximately equal amounts of austenite and ferrite phases. Difference of physical and mechanical properties of component is additional factor that contributes appearance of residual stresses after welding of duplex steel plates. Measurements of stress distributions in weld region were made by
Mat. Res.. Publicado em: 15/04/2014
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27. Environmental Effects on Thermal Properties of PEI/Glass Fiber Composite Materials
ABSTRACT: The aim of this study was to investigate the effects of hygrothermal exposure, ultraviolet (UV) radiation, salt spray and thermal shock aging on the thermomechanical behavior of glass fiber reinforced by poly (ether-imide) (PEI) composites. Dynamic mechanical (DMA) and Thermomechanical (TMA) analyses have been performed on the aged PEI composites a
J. Aerosp. Technol. Manag.. Publicado em: 2013-06
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28. Sugarcane bagasse and castor oil polyurethane adhesive-based particulate composite
This paper discusses the potential use of sugarcane bagasse in two different fiber lengths (5 mm and 8 mm) of the same density as a raw material for the production of particleboards, using castor oil-based two-component polyurethane adhesive. The quality of the product that can be manufactured industrially was evaluated based on density, thickness swell (TS)
Mat. Res.. Publicado em: 22/01/2013
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29. COMPOSITE COMPONENT SUPPORT FOR THE SCS MIDDLEWARE / SUPORTE A COMPONENTES COMPOSTOS PARA O MIDDLEWARE SCS
Diversos modelos de componentes de software apresentam o conceito de componentes compostos, como é o caso do Fractal, OpenCOM, Koala, Kobra e SaveCCM. Um componente composto encapsula outros componentes e é responsável por oferecer mecanismos de configuração e introspecção estrutural, bem como externalizar serviços e dependências internas. A ideia d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2012
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30. Pyroelectric composite film for X-ray intensity detection
Composite material obtained with modified lead titanate (Pz34) ferroelectric ceramic and polyether-ether-ketone (PEEK) polymer matrix was used as sensitive component to measure X-ray intensity in a novel detection system. The sensing element works as a thermal transducer, converting a non-quantified thermal flux into an output measurable quantity of electric
Materials Research. Publicado em: 15/03/2012
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31. Media optimization for β-Fructofuranosidase production by Aspergillus oryzae
β-Fructofuranosidase production by Aspergillus oryzae IPT301 was maximized in shake flasks. Response Surface Methodology (RSM) involving Small Central Composite Design was adopted to evaluate the fructosyltransferase (FTase) activity by changing three medium component concentrations: sucrose, urea and yeast extract. The optimal set of conditions for maximum
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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32. Caracterização de material composto de matriz metálica a partir de um liga de alumínio aeronáutico / Characterization of metal matrix composite material from an aeronautical aluminum recycled alloy
Materiais compostos de matriz metálica (CMM) vêm sendo estudados para diversas aplicações. Entretanto, pouco estudo é apresentado na sua confecção a partir de materiais reciclados. Este trabalho teve como objetivo a caracterização de um material composto de matriz metálica (CMM), utilizando material reciclado como matéria prima. Foram usados apara
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/10/2011
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33. Simultaneous determination of pesticides used electroanalytical methods and chemometri methods / Determinação simultanêa de pesticidas utilizando métodos eletroanalíticos e quimiométricos
This paper describes the simultaneous determination of the pesticides paraquat and diquat using electroanalytical techniques coupled with chemometric methods. Although these two pesticides can be easily determined in trace levels, the same does not apply to mix due to a large overlap of the voltammetric peaks. For this reason it became necessary to treat the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011
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34. Batch-wise adsorption, saxs and microscopic studies of zeolite pelletized with biopolymeric alginate
Removal of nitrates, sulfate and Zn(II) ions from aqueous solutions through adsorption onto biopolymeric alginate/clinoptilolite-rich tuff pellets was studied by using an equilibrium batch technique. The idea of this approach of biosorbent fabrication is to promote the native zeolite adsorption performance and thus to prepare more efficient amphoteric tailor
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03
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35. Compósitos avançados epóxi/fibra de vidro com elevado teor de nanotubos de carbono
The use of carbon nanotubes (CNT) in Epoxy (EP)/Glass Fiber (GF) composites, producing tri-component composites, has been widely researched, with some interesting results related to mechanical and electromagnetic properties. When the goal is a significant improvement in mechanical properties, CNT content greater than 1%wt. may be necessary, which yields seri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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36. Biocomposites from high density biopolyethylene and curaua fibers / Biocompósitos a partir de biopolietileno de alta densidade reforçado por fibras de curauá
In this work, curaua fibers were used in the reinforcement of a high-density (HDPE) thermoplastic matrix. The polyethylene used in this study was obtained by polymerization of ethene produced from sugarcane ethanol. This polymer, also called high-density biopolyethylene (HDBPE), was prepared from a natural source material. The aim of the present study was to
Publicado em: 2010