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Title: Alkali-lead-iron phosphate glass and associated method

A glass composition and method of preparation utilizes a mixture consisting of phosphorus oxide within the range of about 40 to 49 molar percent, lead oxide within the range of about 10 to 25 molar percent, iron oxide within the range of about 10 to 17 molar percent and an alkali oxide within the range of about 23 to 30 molar percent. The glass resulting from the melting and subsequent solidifying of the mixture possesses a high degree of durability and a coefficient of thermal expansion as high as that of any of a number of metals. Such features render this glass highly desirable in glass-to-metal seal applications. 6 figures.
Authors:
; ;
Publication Date:
OSTI Identifier:
5078016
Report Number(s):
US 5298329; A
PPN: US 7-875224
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Patent File Date: 28 Apr 1992
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; GLASS; CHEMICAL COMPOSITION; THERMAL EXPANSION; CONCENTRATION RATIO; METALS; SEALING MATERIALS; ELEMENTS; EXPANSION; MATERIALS 400201* -- Chemical & Physicochemical Properties; 360606 -- Other Materials-- Physical Properties-- (1992-)