METHOD FOR MANUFACTURING SILICA GLASS USING MILLIMETER WAVE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing high-quality silica glass which contains neither bubbles nor foreign substances and have high homogeneity with a lesser distribution of OH groups etc., to a shape approximate to that of a final product. SOLUTION: The method for manufacturing the silica glass comprises heating and vitrifying a porous or powder molded article of silica by irradiating the powder molded article with the continuous or impulsive electromagnetic waves of millimeters or submillimeters in wavelength generated from a gyrotron or magnetron etc. COPYRIGHT: (C)2005,JPO&NCIPI