“…Bender (18) describes a scheme for the qualit'ative analysis of metallographically prepared specimens of uranium plut'oiiiuni mixed carbide fuels. h three-step technique was used consist,ing of electroetchiiig, microhardness measurement, and preferential etching, The metallic dicarbide and sesquicar-bide phases of (U, Pu)C and PuSi precipitates in (U,Pu)C fuels can be identified.…”