caa a22 4500 463223829 CHVBK 20180405153220.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10853-006-0192-7 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0192-7 A study of the influence of muscovite on the thermal transformations of kaolinite from room temperature up to 1,100°C [Elektronische Daten] [Gisèle Lecomte, Jean Bonnet, Philippe Blanchart] Global thermal transformation of kaolinite-muscovite mixtures containing at most 25mass% of muscovite was studied up to 1,100°C. Quantitative and qualitative DTA analysis reveals a great intereaction between the two phylosilicates above 900°C, which is characterized by an enhancement of spinodal demixion contribution during the structural reorganization of metakaolinite. The corresponding enthalpy variation are respectively −32±1kJ/mol and −15±1kJ/mol of kaolinite for pure kaolinite and for the mixture containing 15mass% of muscovite. This interaction is mainly correlated with the diffusion of potassium ions from muscovite platelets into metakaolinite structure. The resulting consequence is an enhancement of mullite crystallization and grain growth at 1,050°C (earlier than in the case of pure kaolinite mineral). Springer Science+Business Media, LLC, 2007 Lecomte Gisèle Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut Bonnet Jean Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut Blanchart Philippe Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8745-8752 0022-2461 42:20<8745 2007 42 10853 https://doi.org/10.1007/s10853-006-0192-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0192-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lecomte Gisèle Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut NATIONALLICENCE 700 1- Bonnet Jean Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut NATIONALLICENCE 700 1- Blanchart Philippe Laboratoire GEMH - ENSCI, 47 à 73 Av. Albert Thomas, 87065, Limoges, France aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8745-8752 0022-2461 42:20<8745 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer