Patent ID: 6919576
Filing Date: 2005-07-19
Classification: G21C,Y02E

Abstract:
1. A composite neutron absorbing coating on substrate surface, the coating comprising: a neutron absorbing layer overlying at least a portion of the substrate surface; and a corrosion resistant top coat layer overlying at least a portion of the neutron absorbing layer; and wherein the absorbing layer comprises: a nickel-based alloy; and a plurality of neutron absorbing particles dispersed in the nickel-based alloy, the neutron absorbing particles comprising a material selected from the group consisting of gadolinium, gadolinium oxide, gadolinium phosphate, and mixtures thereof; and wherein the nickel-based alloy comprises nickel, molybdenum, chromium, tungsten, and iron; and wherein the top coat layer comprises a nickel-based alloy substantially free of neutron absorbing material, and further comprises nickel, molybdenum, chromium, tungsten, and iron.