On the chemistry of the conversion coatings - Sorbonne Université Access content directly
Book Sections Year : 2024

On the chemistry of the conversion coatings

Abstract

A conversion coating is an inorganic or organic–inorganic hybrid surface film conveying specific desirable functions to a material, formed by a spontaneous reaction between the material and an electrolyte. This chapter reviews the fundamental physical chemistry of the conversion coating process and overviews the variety of different conversion coatings. Emphasis is placed on the conventional phosphating and chromating process while reviewing alternatives such as trivalent chromium, titanate, zirconate, and vandate, rare earths, layered double hydroxides, and hybrid inorganic-organic species. The chemistry and formation mechanisms of each conversion coating are discussed in this chapter. Analytical techniques to understand the formation mechanism of the conversion coatings are also summarized.
No file

Dates and versions

hal-04049955 , version 1 (29-03-2023)

Identifiers

Cite

Oumaïma Gharbi, Kevin Ogle, Junsoo Han. On the chemistry of the conversion coatings. Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 3, Elsevier, pp.532-546, 2024, ISBN: 978-0-12-409547-2. ⟨10.1016/B978-0-323-85669-0.00091-X⟩. ⟨hal-04049955⟩
163 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More