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Bone response to porous alumina implants coated with bioactive materials, observed using different characterization techniques
(Wichtig Publishing, 2017-07-01)
Background: Implants or implantable devices should integrate into the host tissue faster than fibrous capsule formation, in which the design of the interface is one of the biggest challenges. Generally, bioactive materials ...
Corrosion protection of chromium-coated steel by hybrid sol-gel coatings
(Elsevier B.V., 2016-08-15)
The aim of this study was to investigate the effect of the amount of tetraethyl orthosilicate (TEOS) on the corrosion protection of chromium-coated steel (CCS) by poly(methyl methacrylate)-co-(trimethoxysilyl)propyl ...
Effect of silica coating on the catalytic activity of maghemite nanoparticles impregnated into mesoporous silica matrix
(2019-03-01)
The search for more efficient catalysts and less polluting and less costly reagents has made heterogeneous catalysis one of the most advantageous processes in this scenario. In this work, recoverable heterogeneous catalysts ...
Dependence of wear and mechanical behavior of nitrocarburized/Crn/Dlc layer on film thickness
(2019-01-01)
Diamond-like carbon (DLC) films are amorphous metastable carbon form that provide interesting mechanical and tribological properties. The role of film thickness influence upon wear and mechanical properties is of interest ...
Piezoelectric effect in composite polyurethane-ferroelectric ceramics
(1999-03-01)
Flexible and free-standing films of piezoelectric composites made up of lead zirconate titanate (PZT) ceramic powder dispersed in a castor oil-based polyurethane (PU) matrix were obtained by spin coating and characterized ...
Zein-based blend coatings: Impact on the quality of a model cheese of short ripening period
(Elsevier B.V., 2016-02-01)
Two biodegradable zein-based blend coatings were evaluated according to the impact on the quality of the Minas Padrao cheese throughout a storage period of 56 days. Throughout the storage, the biodegradable-coated cheese ...
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high-strength steel
(Asm International, 2005-04-01)
Recovered substrates have been extensively used in the aerospace field. Cadmium electroplating has been widely applied to promote protective coatings in aeronautical components, resulting in excellent corrosion protection ...
Hybrid finishing coatings applied on laminar zinc primers
(American Chemical Society, 2013-05)
Hybrid finishing coatings were formulated with several film-forming materials and reinforcement fibers. In all cases, the same tri-pigmented epoxy-polyamide coating based on laminar zinc was used as primer. The results ...
Effect of WC-10%Co-4%Cr coating on the Ti-6Al-4V alloy fatigue strength
(Elsevier B.V. Sa, 2009-05-15)
High strength/weight ratio and effective corrosion resistance are primary reasons to use titanium alloys replacing steel and aluminum in some aeronautical components. However, titanium alloys have poor tribological properties, ...
Aço inox bactericida
(Escola de Minas, 2007-03-01)
Recobrimentos são largamente empregados na indústria, porém o desenvolvimento de novos materiais com propriedades aperfeiçoadas supre a contínua demanda por uma otimização de desempenho, relação custo-benefício ou aumento ...