%0 Journal Article
%T Clay Materials for Ceramics Application from N¡¯Djamena in the Chad Republic: Mineralogical, Physicochemical and Microstructural Characterization
%A Ndjolba Madjihingam
%A Djoda Pagore
%A Jacques Richard Mache
%A Bebbata Warabi
%A Bertin Pagna Kagonbe
%A Patrick Mountapmbeme Kouotou
%J Journal of Materials Science and Chemical Engineering
%P 31-48
%@ 2327-6053
%D 2024
%I Scientific Research Publishing
%R 10.4236/msce.2024.122003
%X Herein, we report some characteristics of the clayey materials (CMs) collected from Kaliwa (C1), Kab¨¦ (C2) and Malo (C3) district in N¡¯Djamena (Chad). Three samples were characterized applying XRF, XRD, FTIR, SEM. In addition, TGA/DSC were performed to control decomposition/mass loss and show phase transitions respectively of CMs. Geochemical analysis by XRF reveals the following minerals composition: SiO2 (~57% - 66%), Al2O3 (~13% - 15%), Fe2O3 (~6% - 10%), TiO2 (~1% - 2%) were the predominant oxides with a reduced proportion in C1, and (~7%) of fluxing agents (K2O, CaO, Na2O). Negligible and trace of MgO (~1%) and P2O5 was noted. The mineralogical composition by XRD shows that, C1, C2 and C3 display close mineralogy with: Quartz (~50%), feldspar (~20%) as non-clay minerals, whereas clays minerals were mostly kaolinite (~15%), illite (~5%) and smectite (~10%). FTIR analysis exhibits almost seemingly similar absorption bands characteristic of hydroxyls elongation, OH valence vibration of Kaolinite and stretching vibration of some Metal-Oxygen bond. SEM micrographs of the samples exhibit microstructureformed by inter-aggregates particles with porous cavities. TGA/DSCconfirm the existence of quartz (570˚C to 870˚C), carbonates (600˚C - 760˚C), kaolinite (569˚C - 988˚C), illite (566˚C - 966˚C), MgO (410˚C - 720˚C) and smectite (650˚C - 900