caa a22 4500 463193660 CHVBK 20180406164916.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10973-006-7030-7 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7030-7 Thermaltransformations of red wall tile pastes [Elektronische Daten] [S. Sousa, J. Holanda] This work focuses on the thermal and mineralogical transformations of red wall tile pastes. The pastes contain different amounts of calcareous and are prepared with Brazilian raw materials. Thermal transformations are evaluated by TG, DTG and DTA, dilatometric analysis, and X-ray diffraction. Four endothermic transformations were identified and interpreted as the release of physically adsorbed water, dehydration of hydroxides, dehydroxylation of kaolinite, and decomposition of carbonate. An exothermic transformation within the 925-950°C range is associated to crystallization of new phases such as calcium aluminosilicates and mullite. TG measurements indicate that the total mass loss of the pastes is dependent on the amount of calcareous addition. Dilatometric analysis indicates the onset of sintering at around 900°C, leading to shrinkage of the pellets. The thermal analysis results agree well with the X-ray diffraction. Springer-Verlag, 2007 red wall tiles nationallicence thermal analysis nationallicence X-ray diffraction nationallicence Sousa S. Group of Ceramic Materials, Laboratory of Advanced Materials, State University of Northern Fluminense, 28013-602, Campos dos Goytacazes-RJ, Brazil aut Holanda J. Group of Ceramic Materials, Laboratory of Advanced Materials, State University of Northern Fluminense, 28013-602, Campos dos Goytacazes-RJ, Brazil aut Journal of Thermal Analysis and Calorimetry Springer Netherlands 87/2(2007-01-01), 423-428 1388-6150 87:2<423 2007 87 10973 https://doi.org/10.1007/s10973-006-7030-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7030-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sousa S. Group of Ceramic Materials, Laboratory of Advanced Materials, State University of Northern Fluminense, 28013-602, Campos dos Goytacazes-RJ, Brazil aut NATIONALLICENCE 700 1- Holanda J. Group of Ceramic Materials, Laboratory of Advanced Materials, State University of Northern Fluminense, 28013-602, Campos dos Goytacazes-RJ, Brazil aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer Netherlands 87/2(2007-01-01), 423-428 1388-6150 87:2<423 2007 87 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer