05151117 is referenced by 10 patents and cites 12 patents.

Disclosed is a method of forming a doped glass body. The glass body is formed by adding a dopant to a glass preform, at least part of which has interconnective pores. The porous preform is immersed in a solution of a salt of the dopant dissolved in an organic solvent having no OH groups. The solvent is removed, and the porous glass preform is heat treated to consolidate it into a non-porous glassy body containing the dopant dispersed throughout at least a portion of the body. An OH-free solvent is selected because of its beneficial effect on the preform during the drying step. Whereas OH-containing solvents such as water and alcohol caused cracking and/or flaking of the outer surface of the porous preform following the drying step, an undamaged surface is formed by the present invention.

Title
Solution doping of porous preforms
Application Number
7/715348
Publication Number
5151117
Application Date
June 14, 1991
Publication Date
September 29, 1992
Inventor
Andrea L Sadd
Corning
NY, US
Roger F Bartholomew
Painted Post
NY, US
Agent
William J Simmons Jr
Assignee
Corning Incorporated
NY, US
IPC
C03C 25/02
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