EXAMINATION OF INFLUENCE SINTERING TEMPERATURE ON MINERAL COMPOUNDS
Abstract
Mineral materials, such as corundum, quartz and periclase are very often used in technological processes. Due to its characteristics, and chemical reaction in solid state, these minerals form very interesting and useful material, cordierite. The mineral ratio in this compound (MgO : Al2O3 : SiO2) is 2:2:5. They form cordierite, electronic ceramic, which can be sintered in a narrow temperature range, at about 1375 °C. Composition of this electronic ceramics material is 2MgO-2Al2O3-5SiO2 (MAS) and in this research 20% mass Bi2O3 was added in the aim of decrease the sintering temperature. The effects of sintering, the composition and morphology were followed by x-ray diffraction, scanning electron microscopy and EDS analysis, as a function of sintering temperature. MAS ceramics were sintered at 1000ºC, 1100ºC and 1200ºC.
References
BABIČ, D. (2003) Mineralogija, Univerzitet u Beogradu, Rudarsko-geološki fakultet, Beograd
AČIMOVIĆ PAVLOVIĆ, Z., PRSTIĆ, A. and ANDRIĆ LJ. (2007) Primena kordijerita za izradu premaza u livarstvu. Hemijska industrija, 61 (1), pp.39-43
VRAČAR, R. and Ž. ŽIVKOVIĆ Ž. (1993) Ekstraktivna metalurgija aluminijuma, Naučna knjiga, Beograd
PAVLICA, J. and DRAŠKIĆ, D. (1997) Priprema nemetaličnih mineralnih sirovina, Rudarsko-geološki fakultet Univerziteta u Beogradu, Beograd
OJEBUOBOH, F.K. (1992) Bismuth-Production, properties and applications. Journal of The Minerals, Metals & Materials Society (JOM), 44, pp.46-49.
KLINKOVA, L.A. et al. (2007) Thermal Stability of Bi2O3. Russian Journal of Inorganic Chemistry, 52 (12), pp.1822-1829
MOFTAH EL-BUAISHI N, et al. (2012) Crystallization behavior and sintering of cordierite synthesized by an aqueous sol–gel route. Ceram Int, 38, pp.1835–41.
OBRADOVIĆ, N. et al. (2012) Influence of Mechanochemical Activation on the Sintering of Cordierite Ceramics in the Presence of Bi2O3 as a Functional Additive. Powder Technology, 218, pp.157-161.
OBRADOVIĆ, N. et al. (2016) Microstructural and electrical properties of cordierite-based ceramics obtained after two-step sintering technique. Sci Sinter. 48, pp.157–165.
WADSWORTH, I. and STEVENS, R. (1992) The Influence of Whisker Dimensions on the Mechanical Properties of Cordierite/SiC Composites. Journal of the European Ceramic Society, 9, pp.153-163.
OBRADOVIĆ, N. et al. (2015) The influence of compaction pressure on the density and electrical properties of cordierite-based ceramics. Sci Sinter. 47, pp.15–22.
OBRADOVIĆ, N. et al. (2016) Effects of mechanical activation and two-step sintering on the structure and electrical properties of cordierite-based ceramics. Ceram Int. 42, pp.9887–9898.
OBRADOVIĆ, N. et al. (2012) Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive. Powder Technol. 218, pp.157–61.
TUMALA R.R. (1991) Ceramic and Glass Ceramic Packaging in the 1990's. Journal of the American Ceramic Society, 74(5), pp.895-908.
KNICKERBOCKER, S.H., KUMAR, A.H. and HERRON L.W. (1993) Cordierite glass-ceramics for multilayer ceramic packaging. American Ceramic Society Bulletin, 72(1), pp.90-95.
DJORDJEVIC, N. et al. (2012) Influence of Mechanical Activation on the Constituents of the MgO- Al2O3 - SiO2-TiO2 System. Tehnika – Novi materijali, 21(3), pp.329-333.
Copyright (c) 2022 Nataša Gojko Đorđević, Slavica R. Mihajlović
This work is licensed under a Creative Commons Attribution 4.0 International License.
