Light weight porous structure

Details Light weight porous structure Light weight porous structure

2006-01-24

2006-01-24

Colaianni, Michael (Department: 1731)

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

C065S017500, C065S022000, C065S413000, C065S414000, C065S415000, C065S423000, C264S413000, C264S414000

Reexamination Certificate

active

06988378

ABSTRACT:
These glass bodies are light weight porous structures such as a boules of high purity fused silica (HPFS). More specifically, the porous structures are supports for HPFS mirror blanks. Porous glass is made utilizing flame deposition of pure silica or doped silica in a manner similar to the production of high purity fused silica. Bubbles or seeds are formed in the glass during laydown. Finely divided silicon carbide (SiC) particles are used to form the bubbles. At least one layer of porous glass is formed in the boule.

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