Browsing by Subject "Adherence"

En este trabajo se presenta la síntesis y la evaluación de la resistencia a la corrosión de recubrimientos de SiO2-TiO2-ZrO2-BiO2 depositados por la técnica de centrifugado sobre acero inoxidable AISI 316L. Los soles se ...

This report shows the synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings deposited by means of spin-coating on Ti6Al4V alloy. The sols were prepared from a mixture of organic precursors, tetraethoxysilane ...

Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel
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Olaya, Jhon | 2018-10

En este trabajo se presenta la síntesis y la evaluación de la resistencia a la corrosión de recubrimientos de SiO2-TiO2-ZrO2-BiO2 depositados por la técnica de centrifugado sobre acero inoxidable AISI 316L. Los soles se prepararon a partir de una mezcla de precursores orgánicos, como el tetraetoxisilano (TEOS) al 98%, tetrabutóxido de titanio (TBT) al 97%, zirconio (IV) butóxido (TBZ) al 80% en solución 1-butanol y nitrato de bismuto penta-hidratado Bi(NO3)3*5H2O. La resistencia a la corrosión se determinó mediante ensayos de curvas de polarización potenciodinámica y de espectroscopia de impedancia electroquímica (EIS) en una solución electrolítica de 3,5% Wt de NaCl + 0,5 M de H2SO4. A los soles preparados se les caracterizó mediante estudio reológico, de pH en función del tiempo, mediciones de espectroscopia de infrarrojo por transformada de Fourier (FTIR) y calorimetría diferencial de barrido (DSC). Los recubrimientos se caracterizaron mediante difracción de rayos X (XRD), microscopia electrónica de barrido (MEB), espectroscopia de energías dispersivas (EDX), fluorescencia de rayos X (XRF) y medidas de adherencia. Los resultados mostraron que las películas ofrecen una buena resistencia a la corrosión sobre el sustrato metálico disminuyendo los valores de densidades de corriente hasta en un orden de magnitud

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Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy
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Alférez Vega, Fabio Leonardo | 2018-02

This report shows the synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings deposited by means of spin-coating on Ti6Al4V alloy. The sols were prepared from a mixture of organic precursors, tetraethoxysilane (TEOS) 98%, titanium tetrabutoxide (TBT) 97%, Zirconium (IV) butoxide (TBZ) 80% in 1-butanol solution, and bismuth nitrate pentahydrate Bi (NO3)3 * 5H2O. The coatings were evaluated via potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in an electrolytic solution of 3.5% wt NaCl + 0.5 M H2SO4. The rheology and pH of the prepared sols were studied through rheology, pH as a function of time, Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) analysis. The coatings were characterized via X-ray diffraction (XRD), scanning electron microscopy equipped with dispersive energy spectroscopy (SEMEDX), X-ray fluorescence (XRF), and adhesion measurements. The results showed that the films add good corrosion resistance to the metal substrate, decreasing current densities up to one order of magnitude.

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Browsing by Subject "Adherence"

Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel

Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy

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Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel

Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy

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Browsing by Subject "Adherence"

Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel ﻿

Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy ﻿

Envíos recientes

Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel

Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy

Portales Institucionales

Synthesis and corrosion resistance evaluation of coatings of SiO2-TiO2-ZrO2-BiO2 on 316L stainless produced by sol-gel

Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy