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Title

Crystallization Kinetics of Nanocrystalline Materials by Combined X-ray Diffraction and Differential Scanning Calorimetry Experiments

AuthorsGil-González, Eva; Perejón, Antonio ; Sánchez-Jiménez, P.E. ; Medina-Carrasco, Santiago; Kupčík, Jaroslav; Šubrt, Jan; Criado Luque, J.M. ; Pérez-Maqueda, Luis A.
Issue Date2018
PublisherAmerican Chemical Society
CitationCrystal Growth and Design 18: 3107- 3116 (2018)
AbstractCrystallization is one key aspect in the resulting properties of nanocrystalline functional materials, and much effort has been devoted to understanding the physical mechanisms involved in these processes as a function of temperature. The main problems associated with crystallization kinetic studies come from the limitations of the employed techniques, and the obtained results may vary significantly depending on the choice of the measurement method. In this work, a complete description of the thermal crystallization event of nanocrystalline BiFeO has been performed by combining the information obtained from three different experimental techniques: in situ high-temperature X-ray diffraction, transmission electron microscopy, and differential scanning calorimetry. Interestingly, the kinetic analysis of the X-ray diffraction and differential scanning calorimetry data yields almost identical results, although the physical properties measured by both techniques are different. This allows the unambiguous determination of the kinetic parameters. The importance of a proper definition of the conversion degree, which is limited by the employed measurement technique, is also highlighted.
URIhttp://hdl.handle.net/10261/171910
Identifiersdoi: 10.1021/acs.cgd.8b00241
issn: 1528-7505
Appears in Collections:(ICMS) Artículos
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