title: Control of stress in protected silver mirrors prepared by plasma beam sputtering.
abstract: Plasma beam sputtering was used to deposit dielectric-protected silver mirrors that exhibited excellent durability and controlled stress. The durability of the mirrors was strongly dependent upon the presence of a very thin chromium adhesion layer between the silver layer and the dielectric overcoat. The stress of the five-layer mirror was balanced by controlling the compressive stress in the top dielectric layer, offsetting the net tensile stress of the combination of layers below.
authors: Space Materials Laboratory, The Aerospace Corporation, Los Angeles, California 90009-2957, USA. barrie@aero.org
authors: James D
authors: JD
authors: Barrie
authors: Peter D
authors: PD
authors: Fuqua
authors: Kelsey A
authors: KA
authors: Folgner
authors: Chung-Tse
authors: CT
authors: Chu