Clays from southern Brazil: physical, chemical and mineralogical characterization
authors Correia, SL; Curto, KAS; Hotza, D; Segadaes, AM
editors Salgado, L; Filho, FA
nationality International
journal ADVANCED POWDER TECHNOLOGY IV
author keywords clays characterization; rational analysis; granulometry; plasticity; Southern Brazil
keywords RAW-MATERIALS; MOROCCO
abstract Fore knowledge of the characteristics of ceramic raw materials is of utmost importance during the development, processing and production stages of any ceramic product. This work describes the characterization of clays commonly used in the ceramics industry. Two different clays were selected: clay A, from Tubarao-SC and clay B, from Porto Alegre-RS. Their chemical composition was obtained by X-ray fluorescence and their mineralogy by X-ray diffraction, coupled with numerical rational analysis. Their thermal behaviour was studied by differential thermal analysis and thermogravimetry. Their particle size distribution and plasticity were also determined. Clay A showed circa 47.5 % quartz (by weight), 40.2 % kaolinite and 9.9 % muscovite mica. Clay B showed a high kaolinite content (circa 72 wt.%), accompanied by montmorillonite (circa 10 %) and potash feldspar (circa 10 % microcline). Clay B was found to be much more plastic than clay A, and both are suitable for pottery, tiles and brick making.
publisher TRANS TECH PUBLICATIONS LTD
issn 0255-5476
isbn 0-87849-984-9
year published 2005
volume 498-499
beginning page 447
ending page 452
web of science category Materials Science, Ceramics; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
subject category Materials Science; Metallurgy & Metallurgical Engineering
unique article identifier WOS:000233984500072
  ciceco authors
  impact metrics
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg