ELECTRICAL-CONDUCTIVITY OF CR2O3 DOPED WITH LA2O3, Y2O3 AND NIO

In order to obtain a better understanding of factors responsible for the improving effect of rare earth additions on the high temperature oxidation resistance of Ni-Cr alloys, the electrical conductivities of sintered Cr//2O//3 doped with various amounts of La//2O//3, Y//2O//3 and NiO were measured in the temperature range from 773 to 1473 K at near atmospheric oxygen pressures.