Chapter 21. Physical Chemistry Characterization of Brazilian West Center (State of Goiás) Heavy Clay

  1. Willam M. Carty
  1. Adolfo Franco and
  2. Mariana Rizzini

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294796.ch21

Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 24, Issue 2

Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 24, Issue 2

How to Cite

Franco, A. and Rizzini, M. (2003) Physical Chemistry Characterization of Brazilian West Center (State of Goiás) Heavy Clay, in Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 24, Issue 2 (ed W. M. Carty), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294796.ch21

Author Information

  1. Universidade Católica de Goiás, Goiǎnia-Go, Brazil

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2003

ISBN Information

Print ISBN: 9780470375822

Online ISBN: 9780470294796

SEARCH

Keywords:

  • chemical properties;
  • X-ray;
  • microstructures;
  • micrographs;
  • suspension

Summary

The physical and chemical properties of two different clays used in the brick and tile industry was investigated. The clays were collected in two different areas located in the Brazilian West Center-The State of Goiás. The study involved X-ray diffraction to identify the chemical components, thermal analysis (TGA and DSC) to select the best firing temperature, and scanning electron microscopy, to investigate the microstructures. Samples of 60 × 20 × 5 mm were uniaxially pressed and fired overnight at temperatures of 800°, 900°, 1000° and 1150°C. Bulk density and apparent porosity, for samples fired at each temperature was measured and compared to the SEM micrographs of the same samples. Although the clays were collected from different areas they did not exhibit a substantial difference in their physical and chemical properties. The optimum firing temperature for both clay samples was determined to be 1000°C.