06363098 is referenced by 11 patents and cites 2 patents.

The invention is to offer such a carbon electrode of less consumption and a long useful life and a method of fabricating the same which prevents particles from falling from carbon electrodes into a melting quartz glass, checks occurrence of bubbles in the quartz glass, and avoids lowering of single crystallizing yield by bubbles existing in a transparent layer formed in the vicinity of an inside surface of a quartz glass crucible when lifting silicon single crystal by using the quartz glass crucible made by using the carbon electrodes. The carbon electrode to be used for melting quartz glass by an arc discharge, is characterized in that an electrode material is composed of carbon of bulk density being 1.80 g/cm

3

or higher and a three-point bending strength being 35 MPa or higher.

Title
Carbon electrode for melting quartz glass and method of fabricating thereof
Application Number
9/672982
Publication Number
6363098 (B1)
Application Date
September 29, 2000
Publication Date
March 26, 2002
Inventor
Shunichi Suzuki
Yamagata
US
Shinya Wagatsuma
Yamagata
US
Kiyoaki Misu
Yamagata
US
Atsuro Miyao
Yamagata
US
Takakazu Mori
Yamagata
US
Hirotaka Hagihara
Yamagata
US
Agent
Foley & Lardner
US
Assignee
Toshiba Ceramics
US
IPC
H05B 7/06
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