Search
Now showing items 401-410 of 418
Estudo de filmes de poli(ácido lático) obtidos por fiação por sopro em solução reforçados com nanocristais de celulose
(Universidade Federal de São Carlos, 2016-07-15)
Solution blow spinning is a technique to produce micro- and nano-scale fibers, forming films with high porosity and surface area. Chemical modifications or the incorporation of nanostructures in these fibers can improve ...
Influência do processamento no comportamento mecânico de nanocompósitos de poliamida 6 com nanosílica
(Universidade Federal de São Carlos, 2015-10-06)
In this study nanocomposites of polyamide-6 (PA-6) reinforced with silica
nanoparticles (SiO2) were prepared in order to promote improved mechanical
properties for engineering applications. The nanoparticles’ surfaces ...
Avaliação da resistência ao desgaste de revestimentos de aços inoxidáveis modificados com boro e fabricados por Plasma com Arco Transferido (PTA)
(Universidade Federal de São Carlos, 2016-03-07)
The discovery of new promising oil extraction sites in Brazil coast led to a
great search for novel functionalized materials to withstand the demanding conditions
from offshore oil exploitation. Stainless steels, such ...
Estudo de compostos cerâmicos para utilização em coatings de alta emissividade
(Universidade Federal de São Carlos, 2016-02-05)
The constant search for means to reduce the energetic consumption
motivates the use of high emissivity ceramic coatings in many high temperature
applications. Its use aims to increase heat transfer efficiency by radiation ...
Simulação computacional em escala microestrutural de compósitos cerâmicos
(Universidade Federal de São Carlos, 2017-02-13)
The study of ceramic composites assisted by computer simulation is well spread
nowadays. It is an interest of the ceramic industry the development of materials
models trustfully enough to reduce cost with prototypes and ...
Seleção de aditivos de sinterização e processamento cerâmico visando otimização da microestrutura do eletróllto sólido BaZr0,8Y0,2O3-δ
(Universidade Federal de São Carlos, 2018-11-12)
In this thesis, we investigated the production of Yttrium-doped Barium Zirconate
proton-conducting electrolytes with 20 at.% of Yttrium (BaZr0.8Y0.2O3-δ) via solid state
reaction. The great challenge presented by this ...
Efeito do envelhecimento em baixa temperatura nas propriedades de aços inoxidáveis lean duplex
(Universidade Federal de São Carlos, 2016-03-23)
In this work, the mechanical and corrosion properties of two lean duplex steels
(LDSS) 2101 and 2404 aged at 475 °C for up to 2000 h were assessed, and the
obtained results were compared with the standard duplex stainless ...
Influência da incorporação de negro de fumo e carbonato de cálcio micro e nanoparticulado nas propriedades reológicas, colorimétricas e mecânicas de filmes de polietileno de baixa densidade
(Universidade Federal de São Carlos, 2021-06-30)
In this work, the influence of incorporation of Carbon Black (CB) and CaCO3, both with different particle sizes, on the rheological, colorimetric and mechanical properties of LDPE films were studied. Three different types ...
Monitoramento in/on-line da malaxagem na extrusão: hidrólise e extensão de cadeia do poli(tereftalato de etileno) e fusão do polipropileno
(Universidade Federal de São Carlos, 2020-08-14)
During twin-screw extrusion, understanding and quantifying the behaviour of molten polymers under different conditions is limited by the complex configuration of the equipment. Due to this fact, real-time extrusion monitoring ...
Compósitos de poli(éter imida) com partículas nanoestruturadas de LaNi₅ para armazenamento de hidrogênio
(Universidade Federal de São Carlos, 2023-07-14)
Hydrogen is a promising energy vector for decarbonizing the energy
matrix, but its widespread use requires safe and efficient storage systems. This
study aimed to produce microparticles of polyetherimide with LaNi5 through ...