dor_id: 41709

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856.4.0.u: http://revistas.unam.mx/index.php/rmf/article/view/15035/25575

100.1.#.a: Pérez, M. A.; Mendoza, M. E.; Carrillo, J. L.; Cabrera, A. B.; Silva, R.

524.#.#.a: Pérez, M. A., et al. (2009). Patterns of aggregation in coprecipitation reactions. Revista Mexicana de Física; Vol 55, No 002. Recuperado de https://repositorio.unam.mx/contenidos/41709

245.1.0.a: Patterns of aggregation in coprecipitation reactions

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2009

264.#.1.c: 2009-01-01

653.#.#.a: Magnetic materials; aggregation in crystal growth

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041.#.7.h: eng

520.3.#.a: Prismatic polycrystalline magnetic particles of iron oxalate were grown by allowing the aggregation of the precipitating crystallites that were produced by a reaction between aqueous iron salts and oxalic acid solutions. The experiments were done at room temperature and under different pH conditions. The particle-growing process was followed by optical microscopy and was then digitally recorded. The effect of the presence of a static magnetic field on the coprecipitation process was also analyzed. It was found that both pH and applied field, considerably influence the aggregation of the crystallites. This is clearly shown in the mean size and surface quality of the particles. It was observed that high pH values produce larger particles and that the applied field yields particles with a smoother surface than those obtained without the application of the field. The polycrystalline particles grow with the formation of clusters whose spatial distribution can be characterized by scaling relations. From this scaling behavior, some information about the spatial correlations occurring during precipitation can be obtained.

773.1.#.t: Revista Mexicana de Física; Vol 55, No 002 (2009)

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Artículo

Patterns of aggregation in coprecipitation reactions

Pérez, M. A.; Mendoza, M. E.; Carrillo, J. L.; Cabrera, A. B.; Silva, R.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Pérez, M. A., et al. (2009). Patterns of aggregation in coprecipitation reactions. Revista Mexicana de Física; Vol 55, No 002. Recuperado de https://repositorio.unam.mx/contenidos/41709

Descripción del recurso

Autor(es)
Pérez, M. A.; Mendoza, M. E.; Carrillo, J. L.; Cabrera, A. B.; Silva, R.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Patterns of aggregation in coprecipitation reactions
Fecha
2009-01-01
Resumen
Prismatic polycrystalline magnetic particles of iron oxalate were grown by allowing the aggregation of the precipitating crystallites that were produced by a reaction between aqueous iron salts and oxalic acid solutions. The experiments were done at room temperature and under different pH conditions. The particle-growing process was followed by optical microscopy and was then digitally recorded. The effect of the presence of a static magnetic field on the coprecipitation process was also analyzed. It was found that both pH and applied field, considerably influence the aggregation of the crystallites. This is clearly shown in the mean size and surface quality of the particles. It was observed that high pH values produce larger particles and that the applied field yields particles with a smoother surface than those obtained without the application of the field. The polycrystalline particles grow with the formation of clusters whose spatial distribution can be characterized by scaling relations. From this scaling behavior, some information about the spatial correlations occurring during precipitation can be obtained.
Tema
Magnetic materials; aggregation in crystal growth
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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