Glass-ceramic coatings for use on metal substrates

The instant invention is concerned with the preparation of glass-ceramic coatings capable of being fired repeatedly to temperatures in excess of 950 DEG C. without thermal deformation and being particularly suitable for application to low carbon and titanium-stabilized stainless steels. The coatings...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHYUNG, KENNETH
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The instant invention is concerned with the preparation of glass-ceramic coatings capable of being fired repeatedly to temperatures in excess of 950 DEG C. without thermal deformation and being particularly suitable for application to low carbon and titanium-stabilized stainless steels. The coatings are substantially free from alkali metal oxides and consist essentially, expressed in terms of weight percent on the oxide basis, of: -BaO 10-60 -B2O3 5-30 -SiO2 25-40 -Al2O3 0-15 -CaO 0-15 -MgO 10-35 -ZnO 0-16 -Al2O3 + CaO + ZnO 5-20 -