ORNL-2106 - the Molten Salt Energy Technologies Web Site

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point. A mixture of 50-50 vol % Li20-AI powder
was cold pressed and hot rolled in a standard-size
2Saluminum picture frame. Composite sheet pro-
duced by this method shows a condnuous aluminum
matrix, even distribution of the lithium oxide, and
good bonding. The 3-50 vol % mixture gives 20
wt % lithium in the core and a lithium density of
0.452 g/cm3, as compared with a lithium density of
0.288 g/cm3 in the 20% Li-8096 Mg alloy. It has
been possible to produce composite sheets with
thickness ratios of clad to core of 1:2, 1:4, 1x5,
and 1:8.
PERIOD ENDING JUNE 70, 7956
On the basis of the successful production of the
Li ,O-AI composi te sheet, Li ,O-Mg was investi-
gated. This combination would produce a lighter
sheet and a higher weight percentage of lithium
for a given volume percentage. The picture frame
was made from AZ31 magnesium because M-1
magnesium alloy was not available. No solid
phase bonding with AZ31 could be obtained. The
Li,O-Mg compact and A231 interface was brittle,
and the finished sheet was cracked throughout.
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