Rigid-Body Translation (RBT) of a NiO-ZrO{sub 2}(cubic) bicrystal and its implications for interface atomic structure
- Northwestern Univ., Evanston, IL (United States)
Any internal interface between two crystalline materials can be described by five macroscopic and three microscopic degrees of freedom. The five macroscopic, or geometric, degrees of freedom describe the relative orientations of the two crystalline lattices and interface plane. For the case of low-energy NiO-ZrO{sub 2} boundaries this is defined by the orientation relationship: NiO(111)//ZrO{sub 2}(100),NiO[1{rvec 1}0]//ZrO{sub 2}[010]. The three microscopic degrees of freedom describe the relative in-plane and out-of-plane RBT (T{sub x}, T{sub y}, T{sub z}); these RBTs are geometric mechanisms by which the interface can relax to a low-energy configuration. The combination of these eight degrees of freedom describes completely the bicrystallography. This paper investigates the RBT associated with NiO-ZrO{sub 2} interfaces as measured from HREM and Z-contrast images.
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 468759
- Report Number(s):
- CONF-960877--
- Country of Publication:
- United States
- Language:
- English
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