Special Selection and Handling Techniques to be Observed in Fabrication of Optical and Ultra High Purity Quartz Glasses

摘要

During the past several years, the Amersil Quartz Division of Engelhard Industries has made available several new and exotic grades of transparent fused quartz, each with properties that are unusual and distinctive and make these grades suitable for a number of special applications. I am sure that most of you are familiar with these grades under the trade names of Optical I, II, and III, Ho-mosil, Ultrasil, Suprasil, and Infrasil. It is of course of paramount importance to first select that grade which most satisfactorily and economically meets the end requirement to which it would be put. Although available literature describing the unique properties of these grades will serve as a guide to selection, I will point out some of the outstanding advantages of the newer exotic grades as a preliminary guide in this discussion.