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Síntese e caracterização de redes metalorgânicas e a busca pela atividade biomimética tipo peroxidase
(2022-03-08)
Metal-organic frameworks (MOF) are porous materials made up of metallic ions coordinated with organic ligands, forming two-dimensional and three-dimensional structures. Since their appearance, these structures have attracted ...
Influência da radiação no comportamento de atrito de filmes finos de dióxido de titânio: fototribologia
(2022-08-17)
In dry sliding of two surfaces, the friction force depends on the pair of materials and the contact conditions. If the material and operating conditions remain unchanged, the friction force is constant. Techniques for ...
Influência de um aditivo compensador de retração à base de óxido de cálcio supercalcinado nas propriedades do concreto autoadensável
(2022-06-07)
Concrete consumption demand of self-compacting concrete is continuously growing due to investments in new infrastructures and upgrades or replacements of old infrastructures in the world. Monitoring the quality and increasing ...
Utilização do bagaço da uva Isabel para a remoção de diclofenaco de sódio em meio aquoso
(2014-06-23)
The aim of the present work was to evaluate the adsorption capacity of the Isabel grape
bagasse (Vitis labrusca x Vitis vinifera) in the removal of the pharmaceutical diclofenac
sodium (DCF) present in aqueous media. The ...
Desenvolvimento de um dispositivo inovador de simulação dinâmica do sistema respiratório para avaliação de um TNT revestido com filme de Cu
(2022-10-20)
Protective face masks act as the first defense line against pathogens that already exist and those that may emerge over the time, their importance has been proven during the recent COVID-19 pandemic. The development and ...
Otimização da adesão de filmes de DLC sobre aço SAE 4140 utilizando intercamadas contendo silício depositadas a partir de tetrametilsilano
(2022-11-16)
Diamond-like carbon (DLC) films have been gaining space in the automotive, aeronautical, biomedical and decorative industries due to their low coefficient of frictionand high wear resistance. However, the low adhesion ...
Composições elastoméricas reforçadas com fibras para o revestimento de superfícies metálicas
(2023-02-15)
The usage of elastomeric materials for pipeline coating realizes a technic to protect the metallic materials, mainly against abrasion wear. The rubber layer must be sufficiently resistant to friction caused by the passage ...
Influência do tempo de deposição e da pressão de base em intercamadas contendo silício: promovendo adesão de filmes finos de DLC sobre aço SAE 4140
(2023-05-13)
Diamond-like carbon (DLC) is an amorphous material widely used in coatings due to its wide range of properties of interest, such as high hardness, resistance to abrasion, chemical corrosion and wear while having low ...
Interações de van der Waals na superlubricidade de filmes nanoestruturados e hidrogenado
(2019-03-26)
Friction is originated by energy dissipation events owing to the lost work of non-conservative forces. The nanotribological mechanisms through which this dissipation can occur include molecular deformation and thermal, ...
Desgaste microabrasivo de revestimento níquel-fósforo tratado termicamente aplicado sobre liga Cu-Be C17200
(2022-06-23)
Copper-beryllium alloys are widely used to manufacture thermoplastics injection molds due to their high thermal conductivity. Even though these alloys admit precipitation hardening at temperatures between 250 and 400 ºC, ...