Author(s)

Youssouf Sawadogo¹, Moustapha Sawadogo¹, Moussa Ouédraogo¹, Mohamed Seynou¹, Gisèle Lecomte-Nana², Philippe Blanchart², Moussa Gomina³, Lamine Zerbo^1*

¹Laboratory of Molecular Chemistry and Materials (LC2M), University Joseph KI-ZERBO, Burkina Faso.
²Institute of Research in Ceramic (IRCER), UMR-CNRS, European Ceramic Center, Limoges, France.
³Laboratory of Cristallography and Material Sciences (CRISMAT), UMR National Graduate School of Engineering of Caen (ENSICAEN), Caen, France.

Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and 25% feldspar. Four porcelains formulation using the casting method, were prepared with different percentages of kaolinitic clay, sand and pegmatite referenced respectively NONG, SAB and PEG. The physico-chemical, mechanical and mineralogical characteristics were evaluated on specimens formulated and sintered at different temperatures from 1200˚C to 1300˚C. X-ray diffraction has revealed the presence of mullite and quartz as essentially crystalline phases. The specimen formulated with 55% NONG, 25% PEG and 20% SAB and sintered at 1240˚C gives better performance (water absorption: 0.17%, density: 2.42, open porosity: 0.42% and flexural strength: 53.54 MPa).

Raw Minerals, Porcelain, Characterization, Chemical Durability and Phase Transformations

Sawadogo, Y. , Sawadogo, M. , Ouédraogo, M. , Seynou, M. , Lecomte-Nana, G. , Blanchart, P. , Gomina, M. and Zerbo, L. (2022) Optimization of Contents of Three Raw Clay Materials in Formulation of a Porcelain. Journal of Materials Science and Chemical Engineering, 10, 41-58. doi: 10.4236/msce.2022.101003.