Thick coloured oxide films are produced on aluminium by anodic oxidation in the non-aqueous system of boric-acid-formamide. The films are hard and compact and the colour tone changes from yellow, through brown, to black as the film becomes thicker. The properties and mechanism of formation of the f
A study of the formation and self-lubrication mechanisms of boric acid films on boric oxide coatings
β Scribed by A. Erdemir; G.R. Fenske; R.A. Erck
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 612 KB
- Volume
- 43-44
- Category
- Article
- ISSN
- 0257-8972
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Blast furnace production of zinc and lead requires metallurgical cokes of low reactivity. Boric oxide is known to act as a negative catalyst for the oxidation of coke. The present work investigates the effect of boric oxide on the reactivity of Nantgarw coke and Australian brown coal char towards ai