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
• OSTI ID: 6509868
• Country of Publication: United States
• Language: English

Related Subjects

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