Structural and Thermomechanical Properties of Stove Tile Ceramics

Authors

  • Anton TRNÍK Constantine the Philosopher University
  • Igor ŠTUBŇA Constantine the Philosopher University
  • Gabriel VARGA Constantine the Philosopher University
  • Martin KEPPERT Czech Technical University
  • Peter BAČÍK Comenius University

DOI:

https://doi.org/10.5755/j01.ms.19.4.2916

Keywords:

heatproof ceramics, Young’s modulus, thermomechanical analysis (mf-TMA), thermodilatometry (TD)

Abstract

The thermomechanical and thermodilatometric behavior of fired heatproof stove tile ceramic material Letovice, which contains quartz, mullite and small amounts of feldspar and glassy phase, was studied while increasing temperature up to 1100 °C. Young’s modulus was measured using the non-destructive sonic resonant method mf-TMA. To find actual dimensions of the sample, thermodilatometry was carried out at the same temperature regime as mf-TMA. A significant increase in Young’s modulus was observed in the region of the α ® b transformation of quartz. This can be explained by the healing effect of the induced radial stresses around the quartz grains on microcracks. The presence of glassy phase caused a small decrease of Young’s modulus at temperatures above ~950 °C.

DOI: http://dx.doi.org/10.5755/j01.ms.19.4.2916

Author Biographies

Anton TRNÍK, Constantine the Philosopher University

Department of Physics

Igor ŠTUBŇA, Constantine the Philosopher University

Department of Physics

Gabriel VARGA, Constantine the Philosopher University

Department of Physics

Martin KEPPERT, Czech Technical University

Department of Materials Engineering and Chemistry

Peter BAČÍK, Comenius University

Department of Mineralogy and Petrology

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Published

2013-12-11

Issue

Vol. 19 No. 4 (2013)

Section

CONSTRUCTION MATERIALS

License

 

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