Manufacturing method for SiO2-TiO2 based glass and manufacturing method for photomask substrate made of SiO2-TiO2 based glass
A method for manufacturing an SiO2-TiO2 based glass upon a target by a direct method, includes: an ingot growing step of growing an SiO2-TiO2 based glass ingot having a predetermined length on the target by flame hydrolysis by feeding a silicon compound and a titanium compound into an oxyhydrogen fl...
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