Characterization of Available Sedimentary Clay of Hobiganj District

EasyChair Preprint 1965

Abstract

Finding the proper ceramic raw materials is important for sustainable development of Bangladesh. The conventional white-ware and tiles manufacturing industries use clay as the major raw material which is generally imported from foreign country. However, due to geological position of our country we have some sedimentary clay deposits. In this study, a local clay was studied to analyse it’s chemical, mineralogical composition, morphological, and thermal properties for plausible diversified applications. X-ray Fluorescence (XRF) analysis of clay showed 67.45 % SiO2 and 16.85 % Al2O3 as major ingredients with Fe2O3 and TiO2, CaO, MgO, Na2O and K2O as minor impurities. X-ray Diffraction (XRD) analysis of clay revealed mineralogical composition as illite, kaolinite, quartz and rutile. Scanning Electron Microscopy exhibited clay has tiny pyramid like shape and pseudo-hexagonal structure of kaolinite in sample. Differential Scanning Calometry (DSC) showed different phase transitions such as metakaolinite phase formation occursed at 4560C and - quartz transformation at 5730C. From the thermal behaviour of this clay, it was evident that Hobiganj clay resembles ball clay type.

Keyphrases: Clay Materials, SEM-EDX, XRD, XRF, and DSC-TG

@booklet{EasyChair:1965,
  author    = {T. M. S. A. Hossain and M. A. Matin and M. A. Hakim and Dr. M. F. Islam},
  title     = {Characterization of Available Sedimentary Clay of Hobiganj District},
  howpublished = {EasyChair Preprint 1965},
  year      = {EasyChair, 2019}}