Experimentally measuring electronic properties could have a significant impact
in determining the kinetics of aged plutonium alloys. Phase stability of
plutonium alloys can be assessed by using modified empirical electronic models
in conjunction with measurements of electronic and magnetic properties of
plutonium alloys. The issues surrounding the evaluation of aged plutonium
alloys and the evolution of electronic-based alloy theories as applied to the
prediction of the solubility of gallium in plutonium are presented. Using
solid solution thermodynamics in combination with these electronic models, the
phase diagram for dilute solid solutions can be estimated.
There are numerous measurements that could be used to determine the
relationship between a material's phase stability and its electronic
structure. The measured properties of interest here are the Seebeck
coefficient (thermopower), Hall coefficient and electrical resistivity.
Combining three property measurements (or three other phase sensitive
properties) into a three-dimensional plot with a specific property on each
axis, a region of space will be formed that describes the stability of the
phase. Also, the implications of assessing electronic data with this
methodology are discussed.
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