Molten salt synthesis and crystal structure of Bi5Ti 3FeO15
Por:
García-Guaderrama M., Fuentes L., Montero-Cabrera M.E., Márquez-Lucero A., Villafuerte-Castrejón M.E.
Publicada:
1 ene 2005
Resumen:
Molten salt synthesis (MSS) of ceramics is an alternative to sol-gel and ceramic methods. Phase purity, as well as particle shape and size, may be effectively controlled by MSS. In the present study, magnetoelectric Aurivillius phase Bi5Ti3FeO15 is obtained by MSS. Experimental setting for reaction control is described. Typical crystallites exhibit plate-like shape with noteworthy size uniformity and aspect ratio. The crystal structure of the investigated phase is analyzed by synchrotron x-ray powder diffraction. Rietveld refinement results for crystal symmetry, cell parameters and atomic positions are given. Space group is Fmm2. Cell parameters (in Å) are: a = 41.157(1), b = 5.4420(2), c = 5.4759(2).
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