Main Article Content
Local clay deposits from Ukpor in Nnewi South Local Government Area of Anambra State were characterized for its potential applications in the production of ceramics whitewares. XRF analysis of the clay revealed that it has high silica and alumina contents with some flux oxides. XRD analysis also revealed that of all the minerals present in the clay, quartz has the highest constituent followed by kaolinite and rutile. FT-IR analysis revealed that the bands corresponds to 3500 cm-1 to 4000 cm-1 indicating the presence hydroxyl groups (OH) and Si-O symmetry vibration stretch at 1206.207 cm-1 which confirmed the kaolinite structure of the clay. The SEM study showed a finely distributed uniform surface with isolated patches of granulated texture which explained the physical behaviour of the clay. The EDS spectrum of the formulated fired Ukpor clay indicated the presence of O, Al, K, Ca, K, Fe, and Si. The study revealed that an increase in the firing temperature and feldspar contents of the clay increases its bulk density, while the apparent density decreases with increase in temperature. Apparent porosity showed that there was a decrease from 25% to 3%, and the water absorption increases with increase in the silica content and decreases with temperature and feldspar increase. The shrinkage increases with the increase in temperature. The results concluded that the clay sample could be utilized as an industrial raw materials for the production of ceramic whitewares.
Ituma CG, Etukudoh AB, Abuh MA, Akpomie KG, Obioha CI. Utilization of Nkpuma-Akpatakpa clay in ceramics: Characterization and microstructural studies. Journal of Applied Science Environmental Management. 2018; 22(1):47-53.
Madejova MI. FT-IR techniques in clay mineral structures: Review. Vibrational Spectroscopy. 2003; 31(1):1-10.
Chikwelu GN, Onuegbu TU, Ezeofor CC, Akpomie KG. Characterization of Mbaukwu clay from Awka-South Anambra State Nigeria for industrial purposes. Pacific Journal of Science and Technology. 2018; 19(1):251-256.
Abuh MA, Abia-Bassey N, Udeinya TC, Nwannewuihe HU, Abong AA, Akpomie KG. Industrial potentials of Adiabo clay in Calabar Municipal of Cross River State, South- South Nigeria. Pacific Journal of Science and Technology. 2014; 15(1):63-75.
Dean B, Gano D, Knight K, Ofman J, Fass R. Effectiveness of proton pump inhibitors in nonerosive reflux diseases. Journal of Clinical Gastroenterology and Hapatology. 2004; 2:656- 664.
Ryan W, Radford C. Whitewares: Production, Testing and Quality Control, Pergamon Press / Institute of Ceramics; 1987.
Ekpunobi EU, Agbo SC, Ajiwe VIE. Evaluation of the mixtures of clay, diatomite, and sawdust for production of ceramic pot filters for water treatment interventions using locally sourced materials. Journal of Environmental Chemical Engineering (JECE). 2019; 7(1):2213-3437. (Elsevier U K) DOI:https//doi.org/10.1016/j.jece.2018.11.036.
Singer F, Singer S. Industrial Ceramic, London Chapman and Hill Limited. 1993; 234.
Nwannenna O, Ogunro A, Apeh F. Comparative study on the addition of cullet to mowe and ibamajo clay for ceramic tiles production. Chem.Mater.Res. 2015; 7(4):16–25.
Chester JH. Refractories, production and properties. The iron and steel Institute. 1973; 3-13:295 -314.
Abubakar I, Birnin YA, Faruq UZ, Noma SS, Sharif N. Characterization of Dabagi Clay deposit for its ceramics potential. African Journal of Environmental Science and Technology. 2014; 8(8):455–459.
Franco F, Cecila JA, Perez-Maqueda LA, Perez-Rodriguez JL, Gomes CSF. Appl. Clay Sci. 2007; 35:119–127.