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Avaliação do teor dos aditivos estabilizantes e das propriedades mecânicas em compostos elastoméricos para lateral de pneu de passeio submetidos ao envelhecimento natural e acelerado
(2015-02-11)
This study aims at analysing the ideal rate of two stabilizers in elastomeric compounds, used in tires that require a long-term performance, submitted to different kinds of aging. The resistance to the aging can be achieved ...
Crescimento de trinca de fadiga no aço SAE 4140 sujeito à vibração forçada
(2015-10-26)
Fatigue is a common cause of failures in mechanical components and metal structures when subjected to dynamic loads, caused by the growth of a crack, with the so-called Paris’ law the main model for crack propagation. This ...
Influência do metal de adição e da energia de soldagem na microestrutura e resistência à fadiga de juntas soldadas de aço de alta resistência e baixa liga DIN S700MC
(2017-05-10)
High strength and low alloy steels (HSLA) are attractive alternative in structural applications. Due to the low carbon and alloying elements (Ni, V and Ti) contents, HSLA steels show good levels of toughness and mechanical ...
Obtenção e caracterização de compósitos preparados com poliestireno expandido reciclado e pó de madeira
(2014-05-29)
The present work aims to analyze the mechanical, thermal, dynamicalmechanical thermal properties and morphology of composites based on recycled polystyrene and wood flour. Composites with different types and levels of ...
Efeito da oxidação nas análises de dureza e atrito em filmes finos de Si3N4
(2014-06-23)
Hard coatings are widely used in surface engineering of mechanical components due to
their high wear resistance and reduced friction coefficients. Actually, the dry cutting techniques
are demanding new materials with ...
Síntese e caracterização de revestimentos protetores de ZrN/TiN sobre o biomaterial Nitinol obtidos por tratamento duplex.
(2014-06-05)
The present work aims to study about duplex treatment on the biomaterial Nitinol (NiTi). This treatment consists in titanium nitride (TiN) formed by plasma nitration, followed by zirconium nitride (ZrN) thin film deposition ...
Influência de moagem de alta energia nas propriedades físicas de uma porcelana de ossos
(2019-11-11)
Porcelain made from bovine bone ashes, known as bone china, is whiter, lighter, stronger and more translucent than ordinary porcelain. The strength of a bone china can reach up to twice the resistance of common porcelain. ...
Aplicação do método de análise dimensional para a determinação de propriedades elasto-pláticas de materiais pelo ensaio de indentação instrumentada
(2019-06-12)
Instrumented indentation test is a technique that allows obtaining the hardness of small volumes of materials. However, in addition to the hardness, it is of great interest to obtain other elastoplastic properties using ...
Efeito da substituição parcial do cimento por adições minerais na resistência à corrosão de concretos por ácidos orgânicos
(2023-09-13)
The development of new research to improve the understanding of the mechanisms of degradation of cementitious matrices in aggressive environments, together with changes in the composition and properties of conventional ...
Estudo de revestimentos aplicados em um bocal de minifoguete a propelente sólido utilizando a técnica de ion plating
(2025-02-25)
The choice of materials for manufacturing nozzles used in rocket engines is a complex topic, as nozzles are subjected to high temperatures that cause plastic deformation, even disintegration of the nozzle. In this sense, ...