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


HUSAIN Z.

CORROSION, cilt.49, ss.290-293, 1993 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 49 Konu: 4
  • Basım Tarihi: 1993
  • Doi Numarası: 10.5006/1.3316051
  • Dergi Adı: CORROSION
  • Sayfa Sayıları: ss.290-293

Özet

Sodium metaborate and metasilicate coatings protect pure iron in the temperature range 800 to 1,000-degrees-C. Metaborate and metasilicate inhibit oxidation. Protective vonsenite (4FeO x Fe2O3 x B2O3) forms with metaborate, and protective fayalite (2FeO x SiO2) forms with metasilicate. It is proposed that noncoherent blocking layers of these compounds effectively decrease the interface area for iron ion diffusion.