ABSTRACT
We study thermal expansion, mass changes, heat capacity, and thermal diffusivity and conductivity for a ceramic body with 20 mass% and without fly ash content, using the TDA, TG, DTA, DSC, and flash method. The measurements were performed (a) for green samples either isothermally or by a linear heating up to a temperature 600°C, 1050°C, or 1100°C, depending on the measurement method; (b) at the room temperature for samples preheated at 100°C, 200°C, ..., 1100°C. In case (a) addition of fly ash changes the final contraction only above ~900°C, while the thermal properties remain almost unchanged. In case (b) the final contraction of samples at 1100°C is the same. The thermal diffusivity is nearly identical up to 700°C, and fly ash causes the diffusivity to stay almost constant up to 1000°C.
KEYWORDS
PAPER SUBMITTED: 2013-09-11
PAPER REVISED: 2014-06-18
PAPER ACCEPTED: 2014-06-20
PUBLISHED ONLINE: 2014-07-06
THERMAL SCIENCE YEAR
2016, VOLUME
20, ISSUE
Issue 2, PAGES [603 - 612]
- Štubňa, I., et al., Mechanical Properties of Kaolin-base Ceramics During Firing, in: Advances in Ceramics - Characterization, Raw Materials, Processing, Properties, Degradation and Healing (Ed. Costas Sikalidis), InTech, Rijeka, Croatia, 2011, pp. 229-244
- Chmelík, F., et al., Creation of Microcracks in Porcelain During Firing, Journal of the European Ceramics Society, 31 (2011), 13, pp. 2205-2209
- Norton, F.H., Fine ceramics - Technology and Application, McGraw-Hill Book Co., New York, USA, 1970
- Kadir, A.A., Sarani, N.A., An Overview of Wastes Recycling in Fired Clay Bricks, International Journal of Integrated Engineering, 4 (2012), 2, pp. 53-69
- Monteiro, S.N., Vieira, C.M.F., Effect of Oily Waste Addition to Clay Ceramic, Ceramics International, 31 (2005), 2, pp. 353-358
- Pinheiro, R.M., et al., Recycling of Waste from the Paper Production into Red Ceramic, Materia-Rio de Janeiro, 13 (2008), 1, pp. 220-227
- Sokolář, R., Effect of Calcite on the Brick Body Closing, Interceram, 59 (2010), 2, pp. 123-127
- Sokolář, R., et al., Mechanical Properties of Ceramic Bodies Based on Calcite Waste, Ceramics International, 38 (2012), 8, pp. 6607-6612
- Štubňa, I., et al., Elastic Properties of Waste Calcite-clay Ceramics During Firing, Journal of the Ceramic Society of Japan, 120 (2012), 1405, pp. 351-354
- Monteiro, R.C.C., et al., Mechanical Characteristics of Clay Structural Ceramics Containing Coal Fly Ash, International Journal of Mechanics and Materials in Design, 4 (2008), 2, pp. 213-220
- Zimmer, A., Bergmann, C.P., Fly Ash of Mineral Coal as Ceramic Tiles Raw Material, Waste Management, 27 (2007), 1, pp. 59-68
- Olgun, A., et al., Development of Ceramics Tiles from Coal Fly Ash and Tincal Ore Waste, Ceramics International, 31 (2005), 1, pp.153-158
- Ozsoy, E.A., et al., Effect of Class C Fly Ash on Mechanical Properties of Clays, Proceedings of the 10th ECerS Conference Goeller Verlag, Baden Baden, Germany, 2007, pp. 1606-1609
- Queralt, I., et al., Use of Coal Fly Ash for Ceramics: A Case Study for a Large Spanish Power Station, Fuel, 76 (1997), 8, pp. 787-789
- Sokolář, R., Vodová, L., The Effect of Fluidized Fly Ash on the Properties of Dry Pressed Ceramic Tiles Based on Fly Ash-clay Body, Ceramics International, 37 (2011), 7, pp. 2879-2885
- Štubňa, I., et al., Simple Push-rod Dilatometer for Dilatometry of Ceramics, Proceedings of the Conference Research and Teaching of Physics on the Context of University Education, SPU, Nitra, Slovakia, 2007, pp. 69-74
- Zuda, L., Černý, R., Measurement of Linear Thermal Expansion Coefficient of Alkali-activated Aluminosilicate Composites up to 1000 °C, Cement & Concrete Composites, 31 (2009), 4, pp. 263-267
- Zeng, M., Shields, D.H., Nonlinear Thermal Expansion and Contraction of Asphalt Concrete, Canadian Journal of Civil Engineering, 26 (1999), 1, pp. 26-34
- Trník, A., et al., Measurement of Linear Thermal Expansion Coefficient of Concrete at High Temperatures: A Comparison of Isothermal and Non-isothermal Method, Cement Wapno Beton, 17 (2012), 6, pp. 363-372
- Podoba, R., et al., Upgrading of TGA/DTA Analyzer Derivatograph, Építőanyag, 64 (2012), 1-2, pp. 28-29
- Parker, W.J., et al., Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity, Journal of Applied Physics, 32 (1961), 9, pp.1679-1684
- Vozár, L., Flash Method for Thermal Diffusivity Measurement. Theory and Praxis. CPU, Nitra, Slovakia, 2001
- JCGM 100:2008, Evaluation of measurement data - Guide to the expression of uncertainty in measurement. Joint Committee for Guides in Metrology, 2008
- Guide to the expression of uncertainty of measurement. Saudi Arabian standards organization, Rijad, 2006
- Kováč J., Thermal conductivity and thermal diffusivity of ceramics materials on kaolin base in temperature range 20 - 800 °C. PhD Thesis, CPU, Nitra, Slovakia, 2013 (in Slovak)
- Štubňa, I., et al., Measuring the Flexural Strength of Ceramics at Elevated Temperatures - An Uncertainty Analysis, Measurement Science Review, 14 (2014), 1, pp. 35-40
- Štubňa, I., et al., Determination of Young's modulus of ceramics from flexural vibration at elevated temperatures, Acta Acustica united with Acustica, 97 (2011), 1, pp. 1-7
- Hanykýř, V., Kutzendorfer, J., Technology of Ceramics. Silkátový svaz, Praha, Czech Republic, 2008
- Gualtieri, A.F., Ferrari, S., Kinetics of Illite Dehydroxylation. Physics and Chemistry of Minerals, 33 (2006), 7, pp. 490-501
- Hlaváč, J., Technology of Silicates. SNTL, Praha, Czech Republic, 1981
- Pospíšil, Z., Koller, A., Fine Ceramics, Basics of Technology. SNTL/ALFA, Praha, Czech Republic, 1981
- Ondruška, J., et al., Degree of Conversion of Dehydroxylation in a Large Electroceramic Body, International Journal of Thermophysics, 32 (2011), 3, pp. 729-735
- Štubňa, I., Trník, A., Young's modulus of porcelain mixture after firing in the dehydroxylation region, Ceramics-Silikáty, 51 (2007), 2, pp.102-105
- Frost, R.L., et al., Thermogravimetric analysis of selected group (II) carbonateminerals - implication for the geosequestration of greenhouse gases, Journal of Thermal Analysis and Calorimetry, 95 (2009), 3, pp. 999-1005
- Rodriguez-Navarro, C., et al., Thermal decomposition of calcite: Mechanisms of formation and textural evolution of CaO nanocrystals, American Mineralogist, 94 (2009), 4, pp. 578-593
