Method of forming a thin unbacked metal foil

Patent · Sun Jan 01 04:00:00 EST 1984

OSTI ID:865247

Duchane, David V ^[1]; Barthell, Barry L ^[2]

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1. Los Alamos, NM
2. Tesuque, NM

In a method of forming a thin (<2 .mu.m) unbacked metal foil having a desired curviplanar shape, a soluble polymeric film, preferably comprising polyvinyl alcohol, is formed on a supporting structure having a shape that defines the desired shape of the foil product. A layer of metal foil is deposited onto one side of the soluble film, preferably by vacuum vapor deposition. The metallized film is then immersed in a suitable solvent to dissolve the film and thereby leave the metal foil as an unbacked metal foil element mounted on the supporting structure. Aluminum foils less than 0.2 .mu.m (2,000 .ANG.) thick and having an areal density of less than 54 .mu.g/cm.sup.2 have been obtained.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4481999
• OSTI ID: 865247
• Country of Publication: United States
• Language: English

Related Subjects

/164/
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density
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preferably
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unbacked
unbacked metal
vacuum
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