Method of forming a thin unbacked metal foil

Patent · Sun Jan 01 00:00:00 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 (United States)
• 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

method
forming
unbacked
metal
foil
desired
curviplanar
shape
soluble
polymeric
film
preferably
comprising
polyvinyl
alcohol
formed
supporting
structure
defines
product
layer
deposited
vacuum
vapor
deposition
metallized
immersed
suitable
solvent
dissolve
leave
element
mounted
aluminum
foils
000
ang
thick
areal
density
54
cm
obtained
preferably comprising
polyvinyl alcohol
polymeric film
suitable solvent
vapor deposition
desired shape
metal foil
supporting structure
vacuum vapor
soluble polymer
unbacked metal
oil product
aluminum foil
areal density
metallized film
vinyl alcohol
soluble poly
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