Making of Fused Quartz and Fused Silica • QSI Quartz
Jan 15, 2018· Heraeus has been producing quartz glass on an industrial scale with this process ever since. ... One Step Fused Silica Production. Chemical vapor deposition (CVD) For the production of optical fiber core rods, deposition of fused silica with a defined refractive index is done inside of fused silica tubes. The chemicals are brought into the tube ...