Patent ID: 6137025
Filing Date: 2000-10-24
Classification: C04B,G21F

Abstract:
A ceramic composition to immobilize actinides comprising:pyrochlore (X.sub.2 Ti.sub.2 O.sub.7) at greater than 50% volumetric ratio, where X is selected from the group consisting of Ca, Gd, Hf, Sm, and actinides;up to about 50% by volume brannerite (YTi.sub.2 O.sub.6), where Y is an actinide;up to about 50% by volume zirconolite (CaATi.sub.2 O.sub.7 ), where A is selected from the group consisting of Zr, Hf, Gd, and Sm;up to about 20% by volume rutile (TiO.sub.2);and up to about 1% by volume actinide oxide.