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Título:
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Crystallization of ?"-LiNH4SO4 and (NH4)2SO 4 in gels:growth morphology and epitaxy phenomena
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Autores:
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Pina Martínez, Carlos Manuel ;
Fernández-Díaz, Lourdes ;
Prieto Rubio, Manuel
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science B.V., 1997
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Geología: Cristalografía
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Tipo = Artículo
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Resumen:
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The crystallization sequences in the system (NH4)2SO4 Li2SO4-H20 at 50C have been studied for solutions with an initial [(NH4)2SO4]/[LizSO4] molar ratio higher than l. The crystal growth experiments were carried out under isothermal conditions in a gel medium, where supersaturation was achieved by "drowning out". The phases obtained are [The crystallization sequences in the system (NH4)2SO4 Li2SO4-H20 at 50C have been studied for solutions with an initial [(NH4)2SO4]/[LizSO4] molar ratio higher than l. The crystal growth experiments were carried out under isothermal conditions in a gel medium, where supersaturation was achieved by "drowning out". The phases obtained are [?"-LiNH4SO4 (LAS) and (NH4)2SO4 (AS). The similarities exhibited by the structures of both compounds favours the development of orientational overgrowth phenomena. The main epitaxial relationship found is the parallelism between [0 0 1]LAS and [1 0 1]AS- The most common contact planes are (0 1 0)LAS and (1 0 1)As. Although less frequent, other epitaxial relationships have also been observed: (0 1 0)LAS ?(0 1 0)AS and [1 0 0]Las ? [1 0 0]AS. The development of the overgrowth is interpreted on the grounds of the structural considerations and the characteristics of the crystallization medium.
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En línea:
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https://eprints.ucm.es/id/eprint/14049/1/Crystallization_of_l_beta%27-LiNH4SO4_and_%28NH4%292SO_4_in_gels_Pina_et_al_1997_1.pdf
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