发明名称 |
Method for fabricating porous silica preform |
摘要 |
A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): {(number of F atoms)/(number of Si atoms)}≦̸0.1  (1).
|
申请公布号 |
US8375749(B2) |
申请公布日期 |
2013.02.19 |
申请号 |
US20090630440 |
申请日期 |
2009.12.03 |
申请人 |
FUJIKURA LTD.;ICHII KENTARO;GOTOH TAKAKAZU;YAMADA NARITOSHI;HARADA KOICHI |
发明人 |
ICHII KENTARO;GOTOH TAKAKAZU;YAMADA NARITOSHI;HARADA KOICHI |
分类号 |
C03B37/018;C03B37/014 |
主分类号 |
C03B37/018 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|