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Method for attaching a fused-quartz mirror to a conductive metal substrateA fused-quartz mirror is attached to a conductive metal substrate by the following steps: tinning one surface of a fused-quartz mirror with a solder of substantially pure indium; tinning a metallic substrate with an indium eutectic alloy consisting essentially of indium bismuth, lead and tin having a melting point substantially below that of indium; heating the eutectic alloy to a temperature substantially above its melting point, but below that of the solder; floating the mirror into place, and subsequently cooling the alloy to a temperature substantially below its melting point.
Document ID
19770022316
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Sonnenschein, G. (Faraday Labs, Inc., La Jolla Calif., United States)
Mckeown, D. (Faraday Labs, Inc., La Jolla Calif., United States)
Date Acquired
September 3, 2013
Publication Date
July 5, 1977
Subject Category
Metallic Materials
Report/Patent Number
Patent Number: NASA-CASE-MFS-23405-1
Patent Number: US-PATENT-4,033,503
Patent Application Number: US-PATENT-APPL-SN-718267
Accession Number
77N29260
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-23405-1|US-PATENT-4,033,503
Patent Application
US-PATENT-APPL-SN-718267

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