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Avaliação do dano por choque térmico em concretos refratários via espectroscopia acústica ressonante não-linear
(Universidade Federal de São Carlos, 2012-03-02)
In this thesis the Non-linear Resonant Acoustic Spectroscopy Technique used to evaluate the mesoscopic non-linearity was incorporated into the Impulse Excitation Technique, which is extensively applied to the evaluation ...
Caracterização de poli(hexametileno biguanida) e suas blendas com poli(álcool vinílico)
(Universidade Federal de São Carlos, 2012-07-31)
In this study, the physical-chemical characterization of poly(hexamethylene biguanide) hydrochloride, PHMB, was performed. It is a low molecular weight synthetic polymer with a broad-spectrum biocidal activity, widely used ...
Influência da geometria da nanocarga na estruturação, orientação e propriedades de filmes tubulares de nanocompósitos de PA6
(Universidade Federal de São Carlos, 2012-06-13)
The structure and morphology of polymers and consequently their properties are dependent on the processing conditions. During the blown film process, high shear and elongational flows can induce a preferred orientation of ...
Desenvolvimento de blendas nanoestruturadas SAN/PBT modificadas com copolímeros acrílicos reativos
(Universidade Federal de São Carlos, 2012-08-02)
In this work we have obtained transparent nanoblends of poly(styrene-coacrylonitrile) (SAN) as matrix and poly(butylene terephthalate) as a nanometric phase. The materials were produced by means of reactive mixing in a ...
Propriedades mecânicas das ligas Ti34Cu36Ni8Zr22 e (TiZr)80Co12Fe8
(Universidade Federal de São Carlos, 2012-03-23)
Bulk amorphous and nanocrystalline alloys have attracted great interest from the scientific community. Titanium based alloys have demonstrated potential for formation of amorphous. This study aimed at to evaluate the ...
Estudo in vitro e in vivo da osseointegração de implantes de titânio com superfícies biomimetizadas
(Universidade Federal de São Carlos, 2012-03-30)
The researchrs conducted with implants are seek to improve the quality of products in order to reduce the waiting time after the surgery to undergo implants on chewing loads safely. To meet this expectation it must be ...
Módulo elástico como ferramenta para o acompanhamento de transformações in situ e desenvolvimento de concretos refratários
(Universidade Federal de São Carlos, 2012-09-12)
Refractory castables are multiphase materials usually exhibiting complex heterogeneous microstructures, which have their mechanical strength affected by chemical and structural changes. These microstructural changes directly ...
Avaliação de modelos de sinterização por fluxo viscoso e determinação da taxa de crescimento de cristais e fração cristalizada em vidros
(Universidade Federal de São Carlos, 2012-08-16)
Glass-ceramics are materials obtained from the controlled crystallization of glass. The properties of these materials are controlled by the nature and proportions of the crystalline phases and residual glass present. ...
Avaliação de sistemas compatibilizantes nas correlações entre processamento e propriedades térmicas, mecânicas e de transporte em nanocompósitos de blenda HDPE/LLDPE e OMMT
(Universidade Federal de São Carlos, 2012-04-11)
Polyolefin nanocomposites have attracted significant technological and scientific interest due to the possibilities of improvements in thermal, mechanical and barrier properties. However, the hydrophobic nature of polyolefins ...
Produção e caracterização de filmes finos recobertos com albumina e fibronectina
(Universidade Federal de São Carlos, 2012-06-28)
Properties related to the increase in the durability of the implants and reliable and faster biological responses are commonly exploited in different areas of scientific research. The physical and chemical phenomena that ...