Moldable fluorophosphate glasses containing Nb/sub 2/O/sub 5/

Patent · Mon Feb 20 23:00:00 EST 1984

OSTI ID:6918548

Courbin, P L.P.; Mazeau, J P

The present invention is directed to fluorophosphate glasses containing about 3-21.5% Nb/sub 2/O/sub 5/ and exhibiting softening points below 500/sup 0/ C. The inventive glasses contemplate two general composition areas in weight percent: P/sub 2/O/sub 5/ 35-46 P/sub 2/O/sub 5/ 20-35 Al/sub 2/O/sub 3/ 3.5-6.5 Li/sub 2/O 0.5-5 Li/sub 2/O 0.8-3.0 Na/sub 2/O 0-10 Na/sub 2/O 3-10 Li/sub 2/O + Na/sub 2/O 0.5-10 Li/sub 2/O + Na/sub 2/O 5-10.5 PbO 0-40 BaO 18-44 Sb/sub 2/O/sub 3/ 0-25 CaO 0-12 PbO + Sb/sub 2/O/sub 3/ 20-50 SrO 0-15 BaO 0-20 MgO 0-7 Al/sub 2/O/sub 3/ 0-5 BaO + CaO + SrO + MgO 28-47 Nb/sub 2/O/sub 5/ 13-21.5 CaO + SrO + MgO <15 F 1-12 Nb/sub 2/O/sub 5/ 3-8.5 F 4.5-8.

• Assignee: Corning Glass Works (France)
• Patent Number(s): US 4433062
• OSTI ID: 6918548
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation &amp; Manufacture
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CORUNDUM
FABRICATION
GLASS
HIGH TEMPERATURE
LITHIUM COMPOUNDS
LITHIUM OXIDES
MELTING POINTS
MINERALS
MOLDING
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OPTICAL PROPERTIES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHATE GLASS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
QUANTITY RATIO
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE