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Calculation of the orientation relationships of directionally solidified eutectic ceramics by a modified Coincidence of Reciprocal Lattice Points model (CRLP)

AutorSerrano-Zabaleta, S.; Larrea, A.
Fecha de publicación2015
EditorAmerican Ceramic Society
John Wiley & Sons
CitaciónJournal of the American Ceramic Society 99(3): 1015-1022 (2015)
ResumenThe Coincidence of Reciprocal Lattice Points (CRLP) method was used to predict, according to geometric considerations, the most favorable orientation relationships (ORs) between the component phases in a family of directionally solidified eutectic ceramics (DSEC) (NiO-YSZ, CoO-YSZ, NiO-CeO2, NiO-GDC, CoO-CeO2, and CoO-GDC) grown by the laser floating zone method. The ORs predicted by the CRLP model are consistent with those experimentally found in a previous work by means of Electron Backscatter Diffraction (EBSD). In this article, we also present a modification to the model with the aim of taking into account that the most stable ceramic-ceramic interfaces are usually formed between atomic planes with low Miller indices, due to their higher atomic density and bigger interplanar spacing. Thus, we introduce in the calculation of the overall coincidence volume a weighting factor which is a function of the interplanar spacing. This modified CRLP method has been applied to the aforementioned eutectic ceramics, and the results are presented and discussed in comparison with the traditional CRLP results and the experimental findings.
Versión del editorhttps://doi.org/10.1111/jace.13976
URIhttp://hdl.handle.net/10261/147556
DOI10.1111/jace.13976
Identificadoresdoi: 10.1111/jace.13976
issn: 0002-7820
e-issn: 1551-2916
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