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Estudo da cinética de sinterização assistida por micro-ondas de pós cerâmicos nano e submicrométricos, com diferentes propriedades dielétricas
(Universidade Federal de São Carlos, 2017-08-30)
Kinetic studies related to microwave assisted sintering of ceramic materials are scarce in the literature, as well as on a nanoscale and submicron scale. Therefore, the aim of this dissertation was to study microwave ...
Avaliação da resistência à fadiga e caracterização microestrutural de fios extrudados e forjados da liga AA7050 reciclada por conformação por spray
(Universidade Federal de São Carlos, 2016-12-19)
High strength 7XXX precipitation hardened aluminum alloys are widely
used in aircraft structural components. The machining process applied in the
fabrication of these components is a low efficiency ...
Implementação do sistema de cristalização superficial induzida por laser em vidro de composição eutética
(Universidade Federal de São Carlos, 2019-03-01)
The radiation from lasers has been successfully applied to materials
processing such as drilling, cutting and welding, sintering of ceramic oxides,
surface heat treatment, directional solidification of single crystal ...
Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular
(Universidade Federal de São Carlos, 2019-04-29)
Grain refinement is an important hardening mechanism in metallic alloys, notably when the grain size reaches the submicrometer scale. For this purpose, several techniques of Severe Plastic Deformation (SPD) have been ...
Produção e caracterização de recobrimentos de aço, empregando a liga amorfizável Fe-Cr-Nb-B
(Universidade Federal de São Carlos, 2012-02-13)
The equipments used to oil flow are submitted in an aggressive environment with the presence of hydrogen sulphide, carbon dioxide and sand, which contribute to corrosion and wear of the surface. To resist of these requests ...
Processamento sol-gel de pós bioativos vítreos e cristalinos
(Universidade Federal de São Carlos, 2010-03-19)
In recent years, the sol-gel process has been increasingly used in the preparation of glasses and glass-ceramics with biomedical applications. Although the precursors used in this synthesis methodology are a very important ...
Análise da superfície de porcelanatos polidos por meio de microscopia de força atômica
(Universidade Federal de São Carlos, 2010-05-24)
The porcelain stoneware tile is a ceramic product that has presented a great increase on production, since it had excellent technical properties and raised aesthetic performance. To improve its aesthetic characteristics, ...
Desenvolvimento e caracterização de concretos refratários ligados quimicamente por fosfatos para aplicação em indústrias petroquímicas
(Universidade Federal de São Carlos, 2017-10-05)
The objective of this work was the development of chemically phosphatebonded
refractories for applications in petrochemical industries due to their
suitable properties such as high green mechanical strength, erosion ...
Propriedades de armazenagem de hidrogênio do intermetálico TiFe processado por moagem de alta energia e laminação a frio sob atmosfera controlada
(Universidade Federal de São Carlos, 2017-03-27)
TiFe is a material of practical interest for hydrogen storage due to its absorption capacity of ~ 1.9 wt. % H at room temperature and the relative low cost of its constituent elements. However, this intermetallic requires ...
Condutividade iônica e atividade termodinâmica em vidros x AgI (1-x) AgPO3, 0 ≤ x ≤ 0,5
(Universidade Federal de São Carlos, 2012-09-14)
The ionic conductivity in solids is known since the 19th century, but the
mechanisms of charge carriers transportation in amorphus solids is not yet fully
known. The control of ths property is especially important for ...