PROTECTION OF PURE IRON AGAINST HIGH-TEMPERATURE OXIDATION USING METABORATE AND METASILICATE COATINGS

Authors
HUSAIN Z
Citation
Z. Husain, PROTECTION OF PURE IRON AGAINST HIGH-TEMPERATURE OXIDATION USING METABORATE AND METASILICATE COATINGS, Corrosion, 49(4), 1993, pp. 290-293
Citations number
6
Categorie Soggetti
Metallurgy & Mining
Journal title
Corrosion → ACNP
ISSN journal
00109312
Volume
49
Issue
4
Year of publication
1993
Pages
290 - 293
Database
ISI
SICI code
0010-9312(1993)49:4<290:POPIAH>2.0.ZU;2-P
Abstract
Sodium metaborate and metasilicate coatings protect pure iron in the t emperature range 800 to 1,000-degrees-C. Metaborate and metasilicate i nhibit oxidation. Protective vonsenite (4FeO x Fe2O3 x B2O3) forms wit h metaborate, and protective fayalite (2FeO x SiO2) forms with metasil icate. It is proposed that noncoherent blocking layers of these compou nds effectively decrease the interface area for iron ion diffusion.