Model supporting the use of pressure in the hot slumping of glass substrates for X-ray telescopes
Journal
Date Issued
2016
Author(s)
Abstract
Thin glass foils are nowadays considered good substrates for lightweight focusing
optics, especially for X-ray telescopes. The desired shape can be imparted to the foils by hot
slumping, a process that replicates the shape of a slumping mould. During thermal slumping,
when the glass and the mould come into contact, ripples in the glass surface appear spontaneously
if the thermal expansions are mismatched. In our hot slumping setup, pressure is applied
to ease the mould shape replication and to enhance the ripple relaxation. Starting from
an existing model developed to explain the ripple formation in hot-slumped glass foils without
pressure, we have developed a model that includes the pressure to support our experimental
results.
Volume
24
Issue
21
Start page
24799
Issn Identifier
1094-4087
Ads BibCode
2016OExpr..2424799S
Rights
open.access
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