The effect of neutron irradiation upon the superconducting critical temperature of some transitionhyphen;metal carbides, nitrides, and carbonitrides

摘要

Samples of TiN, NbC, and Nb(CN) have been irradiated to various neutron doses in the Brookhaven High Flux Beam Reactor. Their superconducting critical temperatures are reduced at a rate which is much less than that for similarly irradiated highhyphen;TcA15 superconductors. A dose of 1.5times;1020n/cm2(Egsim;1 MeV) causes a reduction inTcof 6ndash;27percnt;. This reduction may be explained in terms of the production of metalhyphen;lattice vacancies.