LIGO Document E960050-v2

LIGO Vacuum Compatible Materials List

Document #:
LIGO-E960050-v2
Document type:
E - Engineering documents
Other Versions:
LIGO-E960050-v12
07 Nov 2013, 16:16
LIGO-E960050-v11
27 Dec 2011, 12:02
LIGO-E960050-v10
11 Jul 2011, 15:06
LIGO-E960050-v9
04 Nov 2010, 13:05
LIGO-E960050-v7
07 Sep 2010, 13:49
LIGO-E960050-v6
30 Jul 2010, 14:01
LIGO-E960050-v5
13 May 2010, 21:40
LIGO-E960050-v4
12 Nov 2009, 14:21
LIGO-E960050-v3
16 Sep 2009, 18:26
LIGO-E960050-v1
29 Jul 2009, 11:42
LIGO-E960050-x0
20 Jul 2009, 18:09
Abstract:
LIGO Vacuum Compatible Materials List
Authors:
Keywords:
UHV materials
Notes and Changes:
• Removed distinction between initial and advanced LIGO for approval
• Made an explicit notation in the materials list if the use of a material is restricted (or not)
• Moved a number of materials from the provisionally approved to the approved list, although in some cases with restrictions (e.g. carbon steel, Sm-Co, Nd-Fe-B, Vac-Seal, copper, Tin-Lead solder, etc.) and removed the provisional list from the document
• Added a number of materials to the approved list, although in some cases with restrictions (e.g. adhesives, aluminum bronze, etc.)
• Added a few materials to the explicitly excluded list, e.g. aluminum alloy 7000 series, brass (aka manganese bronze), free-machining grades of stainless steel (303, 303S, 303Se) except as small fasteners, etc.
• Added a number of references
• Added a section on general restrictions on materials (e.g. no castings, material certifications are always required, only the grades and sources called out for the polymers are permitted, etc.)
• Most outgassing rate values remain blank in the materials list (pending)

Need a better description of the approved cable assemblies


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