PREPARING DENSIFIED TITANIA SOL GEL FORMS

摘要

PREPARING DENSIFIED TITANIA SOL-GEL FORMS Low porosity titania forms containing only a small amount of hydroxyl groups and possessing a high refractive index which are property stable regardless of humidity level and which prohibit electrical and gas leakage and optical loss, are obtained in a solgel process by rapidly heating to curing temperature, e.g. at a rate of 8000.degree.C/min. One application provides more stable, longerlasting sol-gel prepared optical interference filters. Other applications provide capacitors with high capacitance and optical planar waveguides.