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3 results on '"Ni–P/MWCNT composite coatings"'

1. Structural Characterization, Global and Local Electrochemical Activity of Electroless Ni–P-Multiwalled Carbon Nanotube Composite Coatings on Pipeline Steel

Author

Mara Cristina Lopes de Oliveira, Olandir Vercino Correa, Rejane Maria Pereira da Silva, Nelson Batista de Lima, Jefferson Thadeu Dias de Oliveira, Leandro Antônio de Oliveira, and Renato Altobelli Antunes

Subjects
Ni–P/MWCNT composite coatings, electroless deposition, corrosion, scanning electrochemical microscopy, Mining engineering. Metallurgy, TN1-997
Abstract

In this work, composite Ni–P-multiwalled carbon nanotube films were produced by electroless deposition. The main goal was to investigate the influence of multiwalled carbon nanotube loading on the local electrochemical behavior of the composite films, as probed by scanning electrochemical microscopy (SECM). The coatings were also characterized with respect to their crystalline structure, surface, and cross-section morphologies. Adhesion strength was examined by scratch tests. The global electrochemical behavior was evaluated by potentiodynamic polarization. The local electrochemical activity was investigated by probing the Fe2+ oxidation in the surface generation/tip collection mode of the SECM. The results revealed that multiwalled carbon nanotubes increased the adhesion strength and reduced the electrochemical activity on the surface of the coated samples.

Published
2021
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2. Structural Characterization, Global and Local Electrochemical Activity of Electroless Ni–P-Multiwalled Carbon Nanotube Composite Coatings on Pipeline Steel

Author

Olandir Vercino Correa, Nelson Batista de Lima, Mara Cristina Lopes de Oliveira, Renato Altobelli Antunes, Jefferson Thadeu Dias de Oliveira, Leandro Antonio de Oliveira, and R. M. P. Silva

Subjects
Nanotube, Materials science, Composite number, 02 engineering and technology, Carbon nanotube, Crystal structure, Electrochemistry, 01 natural sciences, law.invention, Corrosion, Scanning electrochemical microscopy, law, 0103 physical sciences, General Materials Science, computer.programming_language, 010302 applied physics, electroless deposition, corrosion, Mining engineering. Metallurgy, TN1-997, Metals and Alloys, scanning electrochemical microscopy, 021001 nanoscience & nanotechnology, Ni–P/MWCNT composite coatings, Chemical engineering, Scratch, 0210 nano-technology, computer
Abstract

In this work, composite Ni–P-multiwalled carbon nanotube films were produced by electroless deposition. The main goal was to investigate the influence of multiwalled carbon nanotube loading on the local electrochemical behavior of the composite films, as probed by scanning electrochemical microscopy (SECM). The coatings were also characterized with respect to their crystalline structure, surface, and cross-section morphologies. Adhesion strength was examined by scratch tests. The global electrochemical behavior was evaluated by potentiodynamic polarization. The local electrochemical activity was investigated by probing the Fe2+ oxidation in the surface generation/tip collection mode of the SECM. The results revealed that multiwalled carbon nanotubes increased the adhesion strength and reduced the electrochemical activity on the surface of the coated samples.

Published
2021
Full Text
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3. Structural Characterization, Global and Local Electrochemical Activity of Electroless Ni–P-Multiwalled Carbon Nanotube Composite Coatings on Pipeline Steel.

Author

de Oliveira, Mara Cristina Lopes, Correa, Olandir Vercino, da Silva, Rejane Maria Pereira, de Lima, Nelson Batista, de Oliveira, Jefferson Thadeu Dias, de Oliveira, Leandro Antônio, and Antunes, Renato Altobelli

Subjects
COMPOSITE coating, MULTIWALLED carbon nanotubes, SCANNING electrochemical microscopy, CARBON composites, ELECTROLESS deposition, CARBON nanotubes
Abstract

In this work, composite Ni–P-multiwalled carbon nanotube films were produced by electroless deposition. The main goal was to investigate the influence of multiwalled carbon nanotube loading on the local electrochemical behavior of the composite films, as probed by scanning electrochemical microscopy (SECM). The coatings were also characterized with respect to their crystalline structure, surface, and cross-section morphologies. Adhesion strength was examined by scratch tests. The global electrochemical behavior was evaluated by potentiodynamic polarization. The local electrochemical activity was investigated by probing the Fe2+ oxidation in the surface generation/tip collection mode of the SECM. The results revealed that multiwalled carbon nanotubes increased the adhesion strength and reduced the electrochemical activity on the surface of the coated samples. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

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