Answers are grounded in this paper and cite their sources.
Iridium-based coatings for mirrors of x-ray telescopes are studied. In particular, stress-induced deformation is characterized and shown to be compressive and equal to -1786 MPa. Two methods for stress compensation are then studied. One relies on the deposition of silica on the back surface of the substrate and a second one relies on the deposition of a chromium sublayer. Advantages and drawbacks of each of these techniques are presented.
No takes yet. Share an insight, caveat, or question.
Probst et al. (2018) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: