Centro Universitario FEI: Recent submissions
Now showing items 941-960 of 2182
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Processing of AISI M2 HSS with addition of NbC by mechanical alloying using two different types of attritor mills
(2010)The processing of a molybdenum AISI M2 high speed steel with the addition of NbC (6% in mass) by a Powder Metallurgy technique of Mechanical Alloying is the aim of this work. Mechanical Alloying (MA) has been used primarily ... -
Mechanical and thermal behavior of aged composites of recycled PP/EPDM/talc reinforced with bamboo fiber
(2018)LtdNatural fiber reinforced thermoplastic composites have been widely studied, mostly for environmental and economic reasons. One promising application is in the automotive industry, which widely uses talc filled EPDM ... -
Correlating different techniques in the thermooxidative degradation monitoring of high-density polyethylene containing pro-degradant and antioxidants
(2018)© 2018 Elsevier LtdDifferent techniques were used to assess the effect of a primary and a secondary antioxidant, separately, and in combination with a pro-degradant (manganese stearate) on the thermooxidative abiotic ... -
Solution parameters in the manufacture of ceramic ZnO nanofibers made by electrospinning
(2016)© 2016, Springer-Verlag Berlin Heidelberg.Zinc oxide (ZnO) nanofibers were prepared by electrospinning from zinc acetate (ZnAc) as precursor under different conditions. The influence of the solution parameters was studied ... -
Effect of sawdust surface treatment and compatibilizer addition on mechanical behavior, morphology, and moisture uptake of polypropylene/sawdust composites
(2010)Polypropylene/sawdust composites were investigated to assess the effect of sawdust surface treatment and compatibilizer addition on polymer/fiber adhesion. Two silane coupling agents were used for sawdust surface treatment: ... -
A study of PP/PET composites: Factorial design, mechanical and thermal properties
(2016)© 2016 Elsevier LtdDue to the economic importance of polypropylene (PP) and polyethylene terephthalate (PET), and the large amount of composites made with PP matrix and recycled PET as reinforcing material; an investigation ... -
Fatigue life of coir fiber reinforced PP composites: Effect of compatibilizer and coir fiber contents
(2013)The fatigue behavior of polypropylene/coir fiber composites was investigated. Composites were prepared according to an experimental statistical design, in which the independent variables coir fiber and compatibilizer content ... -
Recycled PP/EPDM/talc reinforced with bamboo fiber: Assessment of fiber and compatibilizer content on properties using factorial design
(2017)© 2017 Elsevier LtdThermoplastic composites reinforced with natural fibers have attracted the attention of many researchers, not only for environmental concerns, but also for economic reasons, recyclability, ease of ... -
Process parameters in the manufacture of ceramic ZnO nanofibers made by electrospinning
(2017)© 2016, Springer-Verlag Berlin Heidelberg.Zinc oxide (ZnO) nanofibers were prepared by electrospinning under different conditions using a solution of poly(vinyl alcohol) and zinc acetate as precursor. A 23 factorial design ... -
Abiotic thermo-oxidative degradation of high density polyethylene: Effect of manganese stearate concentration
(2017)© 2017 Elsevier LtdThe effect of pro-degradant manganese (Mn) stearate concentration on the oxidative abiotic degradation of high-density polyethylene (HDPE) was investigated in thermo-oxidative tests at three temperatures ... -
Investigation on the use of coir fiber as alternative reinforcement in polypropylene
(2010)Polypropylene/coir fiber composites were prepared according to an experimental statistical design, in which the independent variables, coir fiber, and compatibilizer content, were varied. The compatibilizer used was maleic ... -
Interaction between precipitation, normal grain growth, and secondary recrystallisation in austenitic stainless steel containing particles
(1999)With the aid of various complementary methods of microstructural analysis, the precipitation, grain growth, and secondary recrystallisation behaviour of an 15Cr-15Ni-1.2Mo-Ti-B (wt-%) austenitic stainless steel were studied ... -
Collaboration, competition and innovation: A consortium of tribology in the automotive sector
(2019)© 2019 Associacao Brasileira de Engenharia de Producao.Paper aims: The collaboration among competitors represents a substantial challenge for most innovation processes of companies. This research aims to explore the factors ... -
Evolution of the open innovation paradigm: Towards a contingent conceptual model
(2018)© 2018 Elsevier Inc.Openness has increasingly become a trend in innovation management. This study aims to propose a contingent conceptual framework for open innovation that reflects the evolution of this concept based on ...