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AssigneeCorning Incorporated
InventorsGitimoy Kar, Kenneth E. Hrdina, John F. Wight, Jr., C. Charles Yu
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The present invention describes an extrusion process for manufacturing a titanium-containing silicate glass honeycomb structure, having a variety of shapes and sizes depending on its ultimate application. The titanium-containing glass honeycomb has a very low coefficient of thermal expansion (CTE) and the CTE can be varied by adjusting the titanium level to match the CTE of members that are bonded to the honeycomb. Furthermore, the inventive honeycomb structure is lightweight, yet able to support heavy loads on its end faces. Therefore, the inventive honeycomb can be advantageously used as a light-weight support for such objects as mirrors. Especially contemplated is using these inventive honeycomb supports for mirrors used in extraterresial environments where temperature extremes are present. These honeycombs can be used singularly or in aggregates to provide such support. Embodiments are described wherein the mass of the honeycomb is further reduced by removing select portions of the honeycomb without deleteriously impacting its ability for load bearing.
An extruded silicate glass honeycomb article, extruded from high purity fused silica soot comprising up to about 9% titanium dioxide and comprising first and second ends, an outer longitudinal surface, and channels traversing within said longitudinal surface, along a longitudinal axis, from said first end to said second end, said channels being separated from each other by longitudinal cell walls, wherein said high purity fused silica soot has a particle size ranging from 0.05 to 0.4 micron.
Dependencies are inferred from the claim text.