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A series of transparent ceramics with the composition of La 2−x Lu x Zr 2 O 7 (x=0−2.0) were prepared by solid-state reactive sintering in vacuum. With the increase of Lu content (x), phase transition from pyrochlore to defective fluorite occurred and a two-phase region existed in the range of x=0.6−1.2. Grain sizes of the pyrochlore phase dominated samples (x<0...
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