Juan G. Castaño
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View article: Atmospheric corrosion of carbon steel: Results of one-year exposure in an andean tropical atmosphere in Colombia
Atmospheric corrosion of carbon steel: Results of one-year exposure in an andean tropical atmosphere in Colombia Open
In this study was examined the response of carbon steel to atmospheric corrosion after one-year exposure in Valle de Aburrá, a subregion located in northwestern Colombia. The study involved the assessment of material mass loss and corrosio…
View article: Methods for evaluation of corrosion rate on magnesium alloys: a review
Methods for evaluation of corrosion rate on magnesium alloys: a review Open
The major drawback of some magnesium alloys is their low corrosion resistance. Therefore, the evaluation of corrosion resistance is a critical factor in developing new alloys and surface treatments. The techniques employed for the determin…
View article: Morphological analysis of plasma electrolytic oxidation coatings formed on Ti6Al4V alloys manufactured by electron beam powder bed fusion
Morphological analysis of plasma electrolytic oxidation coatings formed on Ti6Al4V alloys manufactured by electron beam powder bed fusion Open
This study investigates and compares plasma electrolytic oxidation (PEO) coatings produced on wrought Ti6Al4V alloy substrates with those resulting from electron beam powder bed fusion (PBF-EB). For a duration of 1000 s, a phosphate/silica…
View article: Formation of highly ordered TiO2 nanotubes on Ti6Al4V alloys manufactured by electron beam powder bed fusion (E-PBF)
Formation of highly ordered TiO2 nanotubes on Ti6Al4V alloys manufactured by electron beam powder bed fusion (E-PBF) Open
Highly ordered TiO 2 nanotubes were obtained by anodization on Ti6Al4V substrates manufactured by electron beam powder bed fusion (E-PBF). Effects of anodization parameters such as anodizing time, stirring, fluoride concentration, and wate…
View article: Antibacterial evaluation of electroless Ni–P coating with ZnO nanoparticles on 3D printed ABS
Antibacterial evaluation of electroless Ni–P coating with ZnO nanoparticles on 3D printed ABS Open
Acrylonitrile butadiene styrene (ABS) is one of the most widely used polymers in the manufacture of different parts in engineering applications. This polymer is sometimes subjected to metallizing processes that seek to modify the surface p…
View article: EMDR therapy vs. Supportive Therapy as adjunctive treatment in trauma-exposed bipolar patients: a randomized controlled trial.
EMDR therapy vs. Supportive Therapy as adjunctive treatment in trauma-exposed bipolar patients: a randomized controlled trial. Open
Background. Patients with Bipolar Disorder (BD) are frequently exposed to traumatic events which worsen disease course, but this study is the first multicentre randomised controlled trial to test the efficacy of a trauma-focused adjunctive…
View article: Atmospheric deterioration of ceramic building materials and future trends in the field: a review
Atmospheric deterioration of ceramic building materials and future trends in the field: a review Open
Multiple techniques have been developed and implemented around the world to monitor structures and minimize the costs of repairing, maintaining, and losing ceramic building materials due to environmental factors. Understanding the differen…
View article: Corrosion Resistance and Biological Properties of Pure Magnesium Modified by PEO in Alkaline Phosphate Solutions
Corrosion Resistance and Biological Properties of Pure Magnesium Modified by PEO in Alkaline Phosphate Solutions Open
Magnesium (Mg) has been explored during the last few decades in the biomedical industry as a biodegradable implant. However, mechanical properties and corrosion resistance are still big concerns for clinical use. Therefore, this study prop…
View article: Development of low content Ti-x%wt. Mg alloys by mechanical milling plus hot isostatic pressing
Development of low content Ti-x%wt. Mg alloys by mechanical milling plus hot isostatic pressing Open
Several authors have shown promising results using Ti and Mg to develop materials that combine the benefits of these two metals, such as their low density and absence of harmful second phases, which makes them attractive for aerospace and …
View article: Antibacterial evaluation of electroless Ni – P coating with ZnO nanoparticles on 3D printed ABS
Antibacterial evaluation of electroless Ni – P coating with ZnO nanoparticles on 3D printed ABS Open
Acrylonitrile butadiene styrene (ABS) is one of the most widely used polymers in the manufacture of different parts in engineering applications. This polymer is sometimes subjected to metallizing processes that seek to modify the surface p…
View article: High incidence of PTSD diagnosis and trauma-related symptoms in a trauma exposed bipolar I and II sample
High incidence of PTSD diagnosis and trauma-related symptoms in a trauma exposed bipolar I and II sample Open
Background Post-traumatic stress disorder (PTSD) is an established comorbidity in Bipolar Disorder (BD), but little is known about the characteristics of psychological trauma beyond a PTSD diagnosis and differences in trauma symptoms betwe…
View article: Bipolar database with data including current PTSD diagnosis
Bipolar database with data including current PTSD diagnosis Open
Dataset of 79 patients with BD-I and BD-II with a history of psychological trauma.
View article: Bipolar data: EMDR vs Supportive Psychotherapy
Bipolar data: EMDR vs Supportive Psychotherapy Open
Dataset from a randomized controlled trial testing the efficacy of 20 x 1 hour weekly sessions of Eye Movement Desensitization and Reprocessing (EMDR) therapy, with Supportive Therapy, in Bipolar Disorder patients with psychological trauma…
View article: Bipolar Disorder and psychological trauma
Bipolar Disorder and psychological trauma Open
Trauma symptoms, clinical characteristics, level of functioning and level of cognitive deterioration in a trauma-exposed sample of patients with Bipolar Disorder
View article: Bipolar Disorder and psychological trauma
Bipolar Disorder and psychological trauma Open
Trauma symptoms, clinical characteristics, level of functioning and level of cognitive deterioration in a trauma-exposed sample of patients with Bipolar Disorder
View article: Effect of Ball Size on the Microstructure and Morphology of Mg Powders Processed by High-Energy Ball Milling
Effect of Ball Size on the Microstructure and Morphology of Mg Powders Processed by High-Energy Ball Milling Open
Commercial powders of pure magnesium were processed by high-energy ball milling. The microstructural and morphological evolution of the powders was studied using scanning electron microscopy (SEM), energy dispersive spectrometry (EDX) and …
View article: A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy
A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy Open
The introduction of modular design in total hip arthroplasty has enabled the use of different materials in one single configuration and the adjustment of the prosthesis to the patient’s body, and facilitated medical revisions. However, mod…
View article: Evaluation of the corrosion resistance of electroless Ni-P coatings on magnesium
Evaluation of the corrosion resistance of electroless Ni-P coatings on magnesium Open
Magnesium and its alloys offer a wide range of applications due to their excellent properties, however, their high chemical reactivity depends on their possible application in environments that have high chloride contents, because the deve…
View article: Evaluation of the corrosion resistance of electroless Ni-P coatings on magnesium
Evaluation of the corrosion resistance of electroless Ni-P coatings on magnesium Open
Magnesium and its alloys offer a wide range of applications due to their excellent properties, however, their high chemical reactivity depends on their possible application in environments that have high chloride contents, because the deve…
View article: Effect of heat treatment on the tribological properties of Nickel-Boron electroless coating
Effect of heat treatment on the tribological properties of Nickel-Boron electroless coating Open
Nickel-Boron autocatalytic coatings are widely used in several industries to improve mechanical properties of materials such as hardness and wear resistance. Tribological properties were evaluated in Ni-B autocatalytic coatings deposited o…
View article: Formation of nanotubular TiO<sub>2</sub> structures with varied surface characteristics for biomaterial applications
Formation of nanotubular TiO<sub>2</sub> structures with varied surface characteristics for biomaterial applications Open
Nanotubular structures were generated on the surface of titanium c.p. by anodization technique in an aqueous solution of acetic acid (14% v/v) with different sources of fluoride ion (HF, NaF, NH 4 F). The aim of using these three different…
View article: Development of the magnesium alloy industry in Colombia - An opportunity
Development of the magnesium alloy industry in Colombia - An opportunity Open
Magnesium and its alloys are some of the materials that have had notable growing progress in recent years.This interest in magnesium base alloys is due to both, its physical and mechanical properties, as well as the search for alternatives…