22376

Anti-Corrosion Silica-Based Hybrid Coatings for the Protection of AA2024 Alloy

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Last updated: 04 Jan 2025

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Abstract

In this work, design and preparation of different hybrid ceramic coatings based on Diglycidyl ether of Bisphenol A (Epoxy) and 3-Glycidyloxypropyl trimethyloxysilane (GLYMO) by sol-gel technique was studied. The obtained hybrids coatings were cured by using different hardners. Microstructure assessment of the prepared hybrids was investigated using FTIR. The morphology of the hybrid (silica/epoxy) coatings has also been studied by scanning electron microscopy (SEM). Evaluation of selected mechanical properties (adhesion, and hardness) were performed. In addition, the thermal properties were investigated using thermogravimetric analysis (TGA). The investigation of the different prepared coatings for protection against corrosion were studied based on EIS measurements. The results showed that the silica content plays an important role in determining the morphology as well as the mechanical and thermal properties of the coatings. The EIS results showed an improvement in the corrosion resistance of the hybrid coatings with increasing the silica content up to a certain extent. However, further increase in the silica content, leads to a descent in the corrosion resistance.

DOI

10.21608/asat.2017.22376

Keywords

sol-gel, silica, GLYMO, APTES, anti-corrosion, Epoxy, Hybrid, aluminium, AA2024

Authors

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M.

Last Name

Zoriany

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Affiliation

Egyptian Armed Forces, Egypt.

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Orcid

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First Name

A.

Last Name

Nashaat

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Affiliation

Egyptian Armed Forces, Egypt.

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First Name

Y.

Last Name

El-Shaer

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Affiliation

Egyptian Armed Forces, Egypt.

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First Name

M.

Last Name

Gobara

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-

Affiliation

Egyptian Armed Forces, Egypt.

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Volume

17

Article Issue

AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 17 – April 11 - 13, 2017

Related Issue

4266

Issue Date

2017-04-01

Receive Date

2018-12-19

Publish Date

2017-04-01

Page Start

1

Page End

17

Print ISSN

2090-0678

Online ISSN

2636-364X

Link

https://asat.journals.ekb.eg/article_22376.html

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https://asat.journals.ekb.eg/service?article_code=22376

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15

Type

Original Article

Type Code

737

Publication Type

Journal

Publication Title

International Conference on Aerospace Sciences and Aviation Technology

Publication Link

https://asat.journals.ekb.eg/

MainTitle

Anti-Corrosion Silica-Based Hybrid Coatings for the Protection of AA2024 Alloy

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Article

Created At

22 Jan 2023