Modified zirconia induction furnace

Details Modified zirconia induction furnace Modified zirconia induction furnace

C - Chemistry, Metallurgy

03

B

307/1, 49/8

C03B 37/027 (2006.01) C03B 37/029 (2006.01) H05B 6/02 (2006.01)

Patent

CA 1201892

-9- MODIFIED ZIRCONIA INDUCTION FURNACE Abstract A high temperature induction furnace for drawing lightguide fiber from a silica preform has an axially located tubular zirconium dioxide susceptor therein. Prior to use, at least a portion of the inside surface of the susceptor is coated with a vapor deposited silica "soot". The silica soot is then consolidated at an elevated temperature. Surprisingly, such a technique substantially eliminates migration of zirconium dioxide particles from the susceptor to the preform and/or the fiber 52 without deleteriously affecting the susceptor and/or the operation of the furnace.

426828

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