Mullite formation kinetic from a porcelain stoneware body for tiles production

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Título:	Mullite formation kinetic from a porcelain stoneware body for tiles production
Autor:	Romero, Maximina CSIC ORCID; Martín-Márquez, Jorge; Rincón López, Jesús María CSIC ORCID
Palabras clave:	Mullite Porcelain stoneware Growth kinetics DTA analysis Ceramic tile
Fecha de publicación:	2006
Editor:	Elsevier
Citación:	Journal of the European Ceramic Society 26 (2006) 1647–1652
Resumen:	The growth of mullite (3Al2O3•2SiO2) in a porcelain stoneware body for tiles production has been investigated using differential thermal analysis (DTA). The activation energy calculated by both isothermal and non-isothermal treatments is 599 and 622 kJ mol-1 respectively. The growth morphology parameters n and m are both about 1.5 indicating that bulk nucleation is dominant in mullite crystallization followed by three-dimensional growth of mullite crystals with polyhedron-like morphology controlled by diffusion from a constant number of nuclei. The frequency factor calculated by the isothermal treatment is equal to 8.21 x 1022 s-1.
URI:	http://hdl.handle.net/10261/6353
ISSN:	0955-2219
Aparece en las colecciones:	(IETCC) Artículos