A technical note on the production of zirconia and zircon brick from locally available zircon in Bangladesh

Naher, Sumsun and Haseeb, A.S. Md. Abdul (2006) A technical note on the production of zirconia and zircon brick from locally available zircon in Bangladesh. Journal of Materials Processing Technology, 172 (3). pp. 388-393. ISSN 0924-0136, DOI https://doi.org/10.1016/j.jmatprotec.2005.10.013.

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Official URL: https://doi.org/10.1016/j.jmatprotec.2005.10.013


In this study, the potentiality of Bangladesh zircon as a raw material for zirconia and zircon brick production was examined. Decomposition of zircon (ZrSiO(4)) into zirconia (ZrO(2)) was attempted by using caustic soda (NaOH) as the decomposition agent. 5-10 mu m size zircon, 5-30 wt. NaOH, and decomposition temperatures ranging from 1300 to 1500 degrees C were investigated. X-ray diffraction method using Mo K alpha radiation was used in order to find out the extent of decomposition of zircon into zirconia. Zircon bricks of 0.06 mm x 0.06 mm x 0.025 mm shaped were made under a pressure of 15 MPa. Carboxi methyal cellulose (CMC) and Fe(2)O(3) were used as a binder. With increasing temperature and percentage of NaOH, decomposition of zircon increases. Crushing strengths and density of these bricks could be found as high as 53.36 MPa and 3210 kg/m(3), respectively. Bangladesh zircon can be used successfully for preparation of refractory bricks for high temperature use. (c) 2005 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: Naher, S Haseeb, ASMA
Uncontrolled Keywords: Zircon; Zirconia; Decomposition; NaOH; Temperature; Crushing strength; Density
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 18 Apr 2013 00:25
Last Modified: 16 Oct 2018 05:06
URI: http://eprints.um.edu.my/id/eprint/5766

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