Strong, surface crystallized glass articles

Details Strong, surface crystallized glass articles Strong, surface crystallized glass articles

1990-12-24

1992-01-28

Robinson,, Ellis

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428334, 428409, 428410, 428426, 428428, 428697, 428699, 428701, B32B 1706

Patent

active

050843281

ABSTRACT:
This invention is directed to the formation of transparent, surface-crystallized glass bodies exhibiting very high mechanical strengths, but low frangibility, consisting essentially, in weight percent, of 2.5-5.0% Li.sub.2 O, 5-10% MgO, 3.5-12%, ZnO, 16-28% Al.sub.2 O.sub.3, and 50-70% SiO.sub.2.

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