With a pinch of Li, a new copper alloy has been made (IMAGE)
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The newly engineered alloy owes its superior properties to a unique nanoscale structure featuring precisely ordered copper lithium precipitates surrounded by a tantalum-rich atomic bilayer. The addition of precisely half a percent of lithium –no more, no less--to the previously immiscible Cu-Ta system alters the precipitate morphology. It changes the sphere-like precipitate in Cu-Ta system (left) into forming a stable cuboidal structures (right) that significantly enhance thermal and mechanical performance.
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Arizona State University
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