Patent ID: 6306489
Filing Date: 2001-10-23
Classification: B24C,C03B,C03C,Y10T

Abstract:
A quartz glass component for a reactor housing, said component comprising;a substrate body made of a first quartz glass quality; andan inner surface portion on the substrate facing inwardly of the reactor housing and defining an interior space therein and;said inner surface portion having a roughness area that has an average roughness depth R.sub.a of more than 1 .mu.m;the roughness area comprising a bubble layer having open pores therein facing the interior space, said bubble layer being foamed on the substrate body and being of a second quartz glass of a second quality different from the quality of the first quartz glass, said second glass having a porosity, and the first glass being non-porous or having a porosity lower than the porosity of the second quartz glass of the bubble layer.