๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A protective coating of Silicate on zincplate

โœ Scribed by Han Keping; Ye Xiangrong; Fang Jingli

Publisher
John Wiley and Sons
Year
1997
Tongue
German
Weight
290 KB
Volume
48
Category
Article
ISSN
0947-5117

No coin nor oath required. For personal study only.

โœฆ Synopsis

Abstract

A protective chemical conversion coating, developed on zincplate from a silicate aqueous solution, was found to be more effective in anticorrosive performance than molybdate, tungstate and some heteropoly acid conversion coatings. The relative atomic percent content (A.C. %) of the film, obtained from the constant elemental composition region of the AES profile curves, were oxygen 59.2 zinc 5.9% silicium 19.1%, nitrogen 2.7%, sulfur 4.2%, phosphorus 3.6% and carbon 5.3%. The results of XPS analysis showed that zinc existed as zinc sulfide in the surface layer of the film, while as zinc oxide in the internal layer of the film.

๐Ÿ“œ SIMILAR VOLUMES

A protective-decorative Cathodic convers
A protective-decorative Cathodic conversion coating on steel
โœ Han Keping; Fang Jingli ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 437 KB

## Abstract A decorative conversion coating was formed on mild steel from a solution of sodium molybdate and phosphate by cathodic treatment. Anodic corrosion curves demonstrated the good anticorrosive ability of the coating formed. The results of XPS analysis showed that iron existed as iron (II)