Effect of Neutron Bombardment on Order in the AlloyCu3Au

Samples of the alloy ${\mathrm{Cu}}_3$Au in the ordered and disordered states have been exposed in a nuclear reactor, subject to an integrated fast neutron flux up to 3.3×${10}^{-19\mathrm{}}$ neutron/${\mathrm{cm}}^2$. The electrical resistivity, and presumably the disorder, in the initially ordered samples increases, while little change is observed in the initially disordered samples.