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Mostrando ítems 321-330 de 426
Efeitos da diminuição do tamanho médio de partículas da frita nas propriedades dos esmaltes cerâmicos visando aplicação na esmaltação digital
(Universidade Federal de São Carlos, 2017-08-04)
Nowadays Brazil is the second largest producer and consumer of ceramic tiles in the world. In the process of tile’s production, the decoration and glazing play a prominent role since they are responsible for technical and ...
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 ...
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 ...
Sinterabilidade, desenvolvimento microestrutural e caracterização elétrica do BaCe0,9Y0,1O3-ẟ nanométrico obtido por mistura de óxidos
(Universidade Federal de São Carlos, 2018-11-28)
In this thesis, we investigated the microstructural development of BaCe0,9Y0,1O3-ẟ starting from aggregate-free submicrometric and nanometric powders. The differential of these powders is that synthesis occurred via ...
CeO2 - 10% MOL Gd2O3: efeito da codopagem com X% MOL Sm2O3 (O5 X 52) na microestrutura e na condutividade elétrica
(Universidade Federal de São Carlos, 2011-09-16)
Fuel cells are the most promising technology for producing clean energy. In particular, the Solid Oxide Fuel Cell (SOFC) stands out among the various types due to high efficiency at high temperatures (800 ~ 1000°C) resulting ...
Desenvolvimento de um dilatômetro por micro-ondas e estudo da cinética de sinterização por método não isotérmico de materiais multiferroicos
(Universidade Federal de São Carlos, 2015-05-29)
The purpose of this thesis was to develop a microwave dilatometer and to study the non-isothermal sintering kinetics of multiferroic composite ceramics. The multiferroic system used to study the sintering kinetics was a ...
Síntese in situ pelo método Pechini de compósitos magnetoelétricos SBN/NFO para o controle do crescimento anormal dos grãos da fase SBN
(Universidade Federal de São Carlos, 2016-10-19)
A study was made of the synthesis and processing of magnetoelectric particulate composites of strontium barium niobate (SrxBa1-xNb2O6, or simply SBN) as a lead-free piezoelectric phase and nickel ferrite (NFO) as a magnetic ...
Aprimoramento de um detector de espalhamento de luz laser em baixo ângulo e seu uso in-line na caracterização morfológica de misturas poliméricas bifásicas
(Universidade Federal de São Carlos, 2019-02-27)
A new prototype of the optical detector based on low angle laser light scattering (LALLS) was developed in order to follow in-line the morphology of polymer blends and composites during processing. For this, light from a ...
Desenvolvimento de um novo fundente para substituir o feldspato em composições de grês porcelanato
(Universidade Federal de São Carlos, 2004-08-27)
Amongst the various types of ceramic tiles, the porcelainized stoneware tile stands out due to its technical properties (low water absorption, high mechanical strength and high abrasion, chemical attack and frost resistance). ...
Estudo da resistência à corrosão em ligas de memória de forma NiTiNb com diferentes teores de Nb
(Universidade Federal de São Carlos, 2018-11-26)
In this work, the corrosion behavior of NiTiNb shape memory alloys (SMA) in aqueous medium containing chloride ions was characterized. The study was performed in alloys of six different compositions, which were melted in ...