Patent · US Expired

Method for producing a protective layer on a ceramic body

US4957779A · kind A · utility

8Cited by
12References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 18, 1988
Grant dateSep 18, 1990
Priority date
Expiry dateFeb 18, 2008

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC04B41/81
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

The present invention relates to a method for producing a protective layer on a ceramic or a ceramic composite body. Stated more particularly, by subjecting a ceramic or a ceramic composite body being interconnected residual metal therein to a particular atmosphere, a protective layer can be formed from the interconnected metal. Such a layer can be protective, especially in corrosion environments which include various gaseous or solid species containing sodium and silicon, such as those found in glass tanks.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.