Special Interfaces of ZrO₂ Nanocrystals

Abstract

Lattice images by transmission electron microscopy (TEM) were used to find new interfaces formed between c-and/or t-ZrO 2 nanocrystals. The ZrO 2 nanocrystals, prepared by ion-beam sputtering on a NaCl (100) plane, coalesced to form a straight {220}/{200} interface and a stepped {200}/{111} interface with misfit dislocations. The former is characterized by a good match of O 2-lattice sites and smooth joining of low index planes across it without mismatch and dislocation. The special interfaces are applicable to fcc nanocrystals in general. The atomic structure of the new interface, however, can be studied further with an atomic-resolution TEM

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