Effect of natural phosphate on the microstructure and mechanical properties of porous ceramic from raw clay

3^rd International Conference and Expo on Ceramics and Composite Materials

June 26-27, 2017 Madrid, Spain

M Mouiya, A Abourriche, A Benhammou, Y El hafiane, Y Abouliatim, L Nibou1, M Oumam, H Hannache, M Birot and A Smith

Laboratoire des Mat�©riaux, Proc�©d�©s, Environnement et Qualit�©, ��cole Nationale des Sciences Appliqu�©es, Morocco
Universit�© de Bordeaux, France
Groupe dâ��Etude des Mat�©riaux H�©t�©rog�¨nes, France

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

This study aims to develop and characterize a low cost porous ceramic membrane from Moroccan natural resources by following a different approach. It consist in producing macro-porous ceramics through the dry compaction process by blending different proportions of raw clay with Moroccan natural phosphate which is highly rich with organic matter as a natural pore-forming agent. Thereafter, the compacted granulate produced as a result of the preceding technique is sintered at a high temperature of 1100 �°C. All samples undergo the characterization technique of TG-DTA, SEM, XRD, dilatometry and mechanical strength test. It was found that the microstructure and mechanical properties are strongly influenced by the amount of natural phosphate added (10-40 wt.%). Therefore increasing the amount of phosphate lead to increase of the open porosity and pore size while the flexural / tensile strength decreased accordingly to a diminution of raw clay amount. The largest average size of 5 micron pores with a porosity of 28.11%, tensile and bending strength of 11 MPa and 17.5 MPa respectively was determined based on a sample prepared of 60 wt.% clay and 40 wt.% of natural phosphate sintered at 1100�°C.

Biography :

Email: mossaab.mouiya@gmail.com