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Ligas metálicas amorfas: um novo método de predição de composição com capacidade de formação de amorfos
(Universidade Federal de São Carlos, 2014-02-21)
This thesis presents the development of a new criterion which can indicate new compositions for amorphous metallic alloys. This new criterion was based on dense packing of spheres combined with the lambda criterion through ...
Caracterização da liga amorfa Cu36Ti34Zr22Ni8 processada termomecanicamente
(Universidade Federal de São Carlos, 2015-03-31)
Glass forming ability (GFA) is one of the big issues to obtain large bulk metallic glasses, which are composed of three or more elements. Regardless of an increasing theoretical understanding of glass formation, taking a ...
Efeito químico de aditivos em suspensões aquosas de magnésia para potenciais aplicações em concretos refratários
(Universidade Federal de São Carlos, 2015-02-05)
Magnesium oxide is an important subject of investigation because of its physical and chemical properties, mainly for its application to refractory ceramics. However, magnesium oxide hydration generates its hydroxide, ...
Caracterização do comportamento de desgaste de cerâmicas de alumina densa : efeitos de parâmetros do ensaio do tipo pino no disco
(Universidade Federal de São Carlos, 2010-12-08)
Searching for wear resistant materials, attention has been paid to Si3N4, SiC, Al2O3 and ZrO2 ceramics due to their better properties as compared to other materials. Although ceramic are brittleness, improvements on the ...
Elaboração de indicadores de ciência e tecnologia para o monitoramento de avanços tecnológicos em nanocelulose
(Universidade Federal de São Carlos, 2015-02-27)
Nanocellulose is an economically promising nanomaterial that can be obtained from renewed sources. Due to its potential, it has been the subject of much research in Brazil and in the world. Nanocellulose is an emerging ...
Efeito do tempo entre passes na interação recristalização-precipitação de um aço inoxidável austenítico com alto teor de nióbio e nitrogênio
(Universidade Federal de São Carlos, 2014-06-27)
In this work was studied the influence of interpass time on the recrystallizationprecipitation interaction occurring during the thermomechanical processing of ISO 5832-9 austenitic stainless steel, which has high contents ...
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 ...
Obtenção e caracterização elétrica de filmes finos de SnO2:Sb
(Universidade Federal de São Carlos, 2011-03-03)
The growing demand for advanced electronic devices based on nanomaterials has motivated efforts to produce nanoscale building blocks with designed functions. Transparent conducting oxide nanocrystals (TCONs) are particularly ...
Simulação computacional, projeto, construção e análise do desempenho de uma matriz para extrusão em canal angular dedicada ao processamento de chapas
(Universidade Federal de São Carlos, 2012-08-29)
The present work describes the design, construction and testing of an equal channel angular pressing (ECAP) die characterized by rectangular cross section channels. The main parameter of the ECAP dies is the geometry of ...
Fornos para fusão e espera para indústria de alumínio : caracterização de materiais refratários e conservação de energia
(Universidade Federal de São Carlos, 2012-07-26)
The industrial need to reduce energy consumption is part of a continuous evolution towards higher levels of sustainability and competitiveness. Considering these aspects, the search for alternatives to improve the performance ...