Production method of high heat-resistant quartz glass powder, high heat-resistant quartz glass powder and vitreous body

摘要

P To provide a method of manufacturing quartz glass powder for manufacturing a high HEAT resistant quartz glass body having a high temperature viscosity characteristic equal to or above that of natural quartz glass and high HEAT resistant quartz glass powder and a high HEAT resistant quartz glass body easily obtained by the method of manufacturing the high HEAT resistant quartz glass powder. PSOLUTION: The high HEAT resistant quartz glass powder is obtained by coexisting OH group-containing quartz glass powder and an organic silicon compound to react with each other to remove OH group which is a low viscosity factor in the quartz glass powder and to produce bonded species which is a high viscosity factor by the reaction effect. PCOPYRIGHT: (C)2007 and JPO& INPIT