Glass and Glass-Ceramic Sealant Compositions

Author

Richard K. Brow, Missouri University of Science and TechnologyFollow
Signo Tadeu Dos Reis, Missouri University of Science and Technology
Glen Benson

Abstract

A glass composition for use as a sealant or otherwise bonded to a fuel cell component, including from about 40 mol % to about 60 mol % RO; from about 2 mol % to about 10 mol % M₂O₃; and from about 35 mol % to about 45 mol % SiO₂. R is selected from the group including strontium, calcium, magnesium and zinc and combinations thereof. M is selected from the group including aluminum, boron, lanthanum, iron and combinations thereof. The glass includes at least about 5 mol % ZnO. Upon heat treatment, the glass at least partially crystallizes with the formation of at least one alkaline earth-zinc pyrosilicate crystalline phases.

Recommended Citation

R. K. Brow et al., "Glass and Glass-Ceramic Sealant Compositions," U.S. Patents, Jul 2008.

Department(s)

Materials Science and Engineering

Patent Application Number

US10/966,614

Patent Number

US7399720B1

Document Type

Patent

Document Version

Final Version

File Type

text

Language(s)

English

Publication Date

15 Jul 2008