High transmission glasses for solar applications

Patent · Tue Nov 03 00:00:00 EST 1981

OSTI ID:5764873

Johnson, L K; Thompson, D A

The instant invention is directed to glasses manifesting solar transmissions (350-2100 nm) through a 2.54 mm thick sheet in excess of 90% which can be prepared from conventional glass batch materials containing up to 0.1% iron, expressed as Fe/sub 2/O/sub 3/, as impurities. The inventive glasses consist essentially, expressed in weight percent on the oxide basis as calculated from the batch, of -Al/sub 2/O/sub 3/ 7-13 -B/sub 2/O/sub 3/ 7-10 -Na/sub 2/O 6-11 -K/sub 2/O 2-7 -CaO 2-7 TiO/sub 2/ 0.1-1 -As/sub 2/O/sub 3/ 0-1 -Sb/sub 2/O/sub 3/ 0-1 -SiO/sub 2/. Balance part of the batch materials is added in the form of nitrates in a sufficient amount to virtually completely oxidize all the tramp iron present to the Fe/sup +3/ state.

• Assignee: Corning Glass Works
• Patent Number(s): US 4298389
• OSTI ID: 5764873
• Resource Relation: Patent File Date: Filed date 20 Feb 1980
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
GLASS
CHEMICAL PREPARATION
LIGHT TRANSMISSION
ALUMINIUM OXIDES
ANTIMONY OXIDES
ARSENIC OXIDES
BORON OXIDES
CALCIUM OXIDES
HELIOSTATS
IRON OXIDES
MIRRORS
NITRATES
OXIDATION
POTASSIUM OXIDES
SILICON OXIDES
SODIUM OXIDES
SOLAR RADIATION
TITANIUM OXIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ANTIMONY COMPOUNDS
ARSENIC COMPOUNDS
BORON COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
EQUIPMENT
IRON COMPOUNDS
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
RADIATIONS
SILICON COMPOUNDS
SODIUM COMPOUNDS
SOLAR EQUIPMENT
STELLAR RADIATION
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
141000* - Solar Collectors & Concentrators
360601 - Other Materials- Preparation & Manufacture