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Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates

Bautista-Ruiz, Jorge; Aperador Chaparro, Willian; Olaya, Jhon (Tribology in IndustryBelgrado , Serbia, 2019)

The objective of this investigation was to obtain ceramic coatings of bismuth titanate by Sol-gel synthesis on 316L stainless steel substrates using bismuth nitrate pentahydrate (III) and titanium tetrabutoxide as precursors. ...
Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering

Olaya, Jhon; Macias Ramirez, Hugo Alejandro; Aperador Chaparro, William Arnulfo; Yate, L; L.E, Coy (Applied Surface ScienceBogota , Colombia, 2018-10-31)

We investigate the deposition of TiWSiNx thin films by means of the method of reactive magnetron co-sputtering, setting the nitrogen flow ratios N2/(Ar + N2) at 4.8%, 9.1%,16.7 and 33.3%. The crystallographic structure of ...
Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium

Bautista-Ruiz, Jorge; Aperador Chaparro, William Arnulfo; Caicedo, J.C. (Tribology in IndustrySerbia, 2018)

Studies of materials in biomedical applications have focused on the generation of new biomaterials and the development of surface modifications, mainly of metals. Amorphous silicon containing diamond like carbon DLC-Si ...
Wear synergy of copper-iron mixtures processed by powder metallurgy

Operador, W; Bautista-Ruiz, Jorge; Caicedo, J (Rasayan Journal of ChemistryIndia, 2021)

Through the powder metallurgy process, copper and iron powders were mixed in the proportions Cu between 15% to 75% and iron from 25% to 85% that made up the binary material systems. The X-ray diffraction technique was ...

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Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates
...
Bautista-Ruiz, Jorge | 2019

The objective of this investigation was to obtain ceramic coatings of bismuth titanate by Sol-gel synthesis on 316L stainless steel substrates using bismuth nitrate pentahydrate (III) and titanium tetrabutoxide as precursors. The characterization focused on determining wear rates, coefficients of friction, adhesion, nano-hardness, and thickness of the coatings, depending on the concentration of the precursors, the speed of rotation and the number of layers. It is concluded that the sol presents favorable conditions for their potential application as coatings on metallic substrates

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Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering
...
Olaya, Jhon | 2018-10-31

We investigate the deposition of TiWSiNx thin films by means of the method of reactive magnetron co-sputtering, setting the nitrogen flow ratios N2/(Ar + N2) at 4.8%, 9.1%,16.7 and 33.3%. The crystallographic structure of the films was established through X-ray diffraction (XRD), the morphology and topography were evaluated through scanning electron microscopy (SEM) and atomic force microscopy (AFM), the chemical composition was evaluated through X-ray diffraction and X-ray photoelectron spectroscopy, the mechanical properties were evaluated by nanoindentation, and the wear resistance was studied via nanowear and pin-on-disk. It was found that films deposited between 4.8% and 16.7% nitrogen flow ratio exhibited an amorphous phase. As the nitrogen was increased, the films evolved into a mixture of amorphous Si3N4 and crystalline TiWN phase. Moreover, the film morphology changed to fine columnar as the nitrogen flow ratio increased. As a general observation, the hardness, resistance to plastic deformation (H3/E2), and residual stress of the samples increased as the nitrogen flow ratio increased. The maximum hardness, resistance to plastic deformation, and residual stress were 22 ± 0.4 GPa, 213 ± 20 MPa, and 1.4 ± 0.01, respectively. The lowest nanowear volume (0.47 µm3) and wear rate (11 ± 8 10−9 mm3/N mm) were obtained for films deposited at high nitrogen flow ratios. The lowest friction coefficient (0.15) was recorded for films deposited at 16.7% nitrogen flow ratio.

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Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium
...
Bautista-Ruiz, Jorge | 2018

Studies of materials in biomedical applications have focused on the generation of new biomaterials and the development of surface modifications, mainly of metals. Amorphous silicon containing diamond like carbon DLC-Si coating deposited on titanium substrate with the purpose of studying its biofunctionality. The behavior against the phenomenon of tribocorrosion of coatings DLC-Si deposited on titanium was evaluated, through the plasma-assisted chemical vapor deposition technique. The nanoindentation technique was used to determine the coating mechanical properties. The DLC-Si coatings were structurally analyzed through X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) techniques, the characteristic binding energy for the signal C1s was obtained from XPS. Via XRD results the amorphous structure of DLC-Si coating was determined. The triboelectrochemical results indicate that the coating shows an adequate wear and to corrosion protection when exposed to the synergic mechanism, thus demonstrating the protective coating effect

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Wear synergy of copper-iron mixtures processed by powder metallurgy
...
Operador, W | 2021

Through the powder metallurgy process, copper and iron powders were mixed in the proportions Cu between 15% to 75% and iron from 25% to 85% that made up the binary material systems. The X-ray diffraction technique was used to determine the crystalline structure. Material systems were topographically characterized with optical microscopy. Tribology tests were established using a pin on the disk tribometer. It was determined that the stability of the mixture has different behaviors depending on the evaluated system because the wear system caused, indicating that the phenomenon can be additive. The mixed material is characterized by high friction coefficient and high wear due to the samples' specific properties by increasing the amount of iron in the mixture. The systems analyzed indicate that mechanical degradation was mainly reduced. Dimensional variation of the study specimens was evidenced due to the influence of copper in the system. Only the austenitic structure of the steel was observed, which indicates a complete diffusion of the copper.

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Listar por tema "Wear"

Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates

Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering

Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium

Wear synergy of copper-iron mixtures processed by powder metallurgy

Envíos recientes

Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates

Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering

Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium

Wear synergy of copper-iron mixtures processed by powder metallurgy

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Listar por tema "Wear"

Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates ﻿

Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering ﻿

Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium ﻿

Wear synergy of copper-iron mixtures processed by powder metallurgy ﻿

Envíos recientes

Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates

Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering

Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium

Wear synergy of copper-iron mixtures processed by powder metallurgy

Portales Institucionales

Characterization of the tribological properties of bismuth-titanate coatings synthesized by sol-gel on 316L stainless steel substrates

Effect of nitrogen flow ratio on microstructure, mechanical and tribological properties of TiWSiN x thin film deposited by magnetron co-sputtering

Tribocorrosion Behavior of Amorphous Carbon-Silicon Coated Titanium in Biological Medium

Wear synergy of copper-iron mixtures processed by powder metallurgy