Chemically durable nitrogen containing phosphate glasses useful for sealing to metals

Patent · Tue Jun 19 00:00:00 EDT 1984

OSTI ID:6509868

Day, D E; Wilder, Jr, J A

The chemical durability of alkali phosphate glasses is improved by incorporation of up to 23 weight percent of nitrogen. A typical phosphate glass contains: 10 to 60 mole % of Li/sub 2/O, Na/sub 2/O or K/sub 2/O; 5-40 mole % of BaO or CaO; 0-1 to 10 mole % of Al/sub 2/O/sub 3/; and 40-70 mole % of P/sub 2/O/sub 5/. Nitrides, such as AlN, are the favored additives.

• Assignee: Dept. of Energy
• Patent Number(s): US 4455384
• Application Number: TRN: 84-022940
• OSTI ID: 6509868
• Resource Relation: Patent File Date: Filed date 8 Dec 1982; Other Information: PAT-APPL-447847
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PHOSPHATE GLASS
CHEMICAL PROPERTIES
STABILITY
ALUMINIUM NITRIDES
ALUMINIUM OXIDES
BARIUM OXIDES
CALCIUM OXIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
LITHIUM OXIDES
MOLECULAR STRUCTURE
NITROGEN
PHOSPHATES
PHOSPHORUS OXIDES
POTASSIUM OXIDES
SODIUM OXIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
ELEMENTS
GLASS
LITHIUM COMPOUNDS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PNICTIDES
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SYNTHESIS
360600* - Other Materials