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Now showing items 111-120 of 142
Construção de equipamento de tratamento de superfície a plasma com fonte DC pulsada para tratamento de nitretação iônica.
(Universidade Federal de São Carlos, 2017-10-06)
Surface treatment techniques such as plasma aided nitriding, although very well consolidated in the industry, must still be studied well and improved. Based on this idea and with the objective of looking for better treatment ...
Moldagem e comparação de propriedades de compósitos de poli(butileno adipato-co-tereftalato) reforçados com tecidos de fibras vegetais
(Universidade Federal de São Carlos, 2019-03-25)
In recent years, the increasing volume of polymer resin production and use has generated environmental problems caused by the post-consumption disposal of these materials, which become huge amounts of waste due to the ...
Síntese e formação de nanoestruturas e filmes de alumina anódica porosa
(Universidade Federal de São Carlos, 2014-01-30)
This paper presents a methodology for obtaining the porous anodic
alumina. anodization of aluminum in acidic electrolytes may specifically result in
different types of oxide films as a barrier type porous type. Anodic ...
Espectroscopia micro-Raman e MEV/EDS aplicados a minerais do Craton São Francisco: evidência da formação de pirita mediada biogenicamente e suas conexões com a origem da vida
(Universidade Federal de São Carlos, 2019-03-19)
The occurrence and isotopic composition of carbonaceous components in ancient rocks are strong evidence of life forms on the Earth's surface since the Eoarchean (> 3.7 Ga). These organic components are found in rocks formed ...
Síntese e caracterização de géis para cromatografia de exclusão por tamanho via reticulação de Acetato de Celulose com 4,4' - Difenilmetano Diisocianato (MDI)
(Universidade Federal de São Carlos, 2016-03-28)
The need to obtain biomaterials in order to reduce environmental impacts has been the focus of research groups in recent years, and cellulose, a dominant component at most forms of plants is a promising resource because ...
Produção e Caracterização de Filme de a-C:H(N)
(Universidade Federal de São Carlos, 2018-10-03)
The great interest in using diamond-like carbon (DLC) thin films is justified by their remarkable properties. The DLC film may incorporate other atomic elements depending on the precursor gas and the deposition conditions ...
Estudo da resistência à corrosão intergranular do aço inoxidável austenítico f138 - perspectiva de desempenho após Deformação Plástica Severa (DPS)
(Universidade Federal de São Carlos, 2018-10-26)
Austenitic stainless steels are widely used in heating and cooling circuits of thermoelectric and nuclear power plants (NPP) in the storage and reprocessing of nuclear fuels, mainly because they have good processability, ...
Desenvolvimento de um sistema de liberação utilizando nanotubos de TiO2
(Universidade Federal de São Carlos, 2020-07-24)
Titanium-based implants are being commonly used in the field of biomedicine due to their attractive biocompatibility and their mechanical properties that contribute to a better performance of the material. This dissertation ...
Síntese e caracterização de hidrogel para processo de fracionamento da lignina extraída do bagaço de cana-de-açúcar
(Universidade Federal de São Carlos, 2019-03-08)
Brazil is currently considered the largest producer of sugarcane in the world, which results directly in tons of lignocellulosic biomass residues. The use and recycling of these process residues would reduce the environmental ...
Comparação do método químico e método a plasma no preparo de nanocompósitos de prata e nanocelulose
(Universidade Federal de São Carlos, 2020-04-02)
Cellulose, being a biodegradable material, flexible and with good mechanical resistance, has been attracting great interest in studies, as it is a biopolymer from a renewable source and widely available in nature. It can ...