GRK 2802: EFFECT OF THE INITIAL THERMAL CYCLE ON THE THERMAL DIFFUSIVITY OF AN MgO-C REFRACTORY
Type of the data | Dataset | |
Total size of the dataset | 193001 | |
Author | Pan, Luyao | |
Author | Wulf, Rhena | |
Author | Tobias M., Fieback | |
Author | Till M. J., Stadtmüller | |
Author | Christos G., Aneziris | |
Upload date | 2026-09-30T06:26:42Z | |
Publication date | 2026-09-30T06:26:42Z | |
Publication date | 2026-09-30 | |
Abstract of the dataset | The thermal diffusivity of MgO-C refractories is strongly influenced by their composition, internal structure, and temperature. The present study demonstrates that the thermal history of the material also plays a significant role. This effect was investigated using a representative MgO-C sample measured by the laser flash method over a temperature range from room temperature to 700 °C. During the initial heating, the thermal diffusivity decreased continuously with increasing temperature, with the most pronounced decrease occurring at lower temperatures. During subsequent cooling, the thermal diffusivity increased with decreasing temperature. However, the cooling curve followed a different path from the initial heating curve and exhibited a considerably flatter temperature dependence. The observed behaviour highlights the importance of considering thermal history when interpreting temperature-dependent thermal diffusivity measurements of heterogeneous MgO-C refractory materials. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2965 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::42 | |
Title of the dataset | GRK 2802: EFFECT OF THE INITIAL THERMAL CYCLE ON THE THERMAL DIFFUSIVITY OF AN MgO-C REFRACTORY | |
Project abstract | Due to their initial use at high temperatures and contact with molten materials, refractory recyclates exhibit significant changes in their thermophysical properties, particularly thermal conductivity, compared to the original materials (impurities, changes in structure and phase composition, etc.). The aim is to predict the temperature-dependent thermal conductivity, as well as the associated variables like thermal diffusivity, heat capacity and thermal shock behaviour of recyclates and composite materials depending on their composition and history. The methods used involve the application and further development of various thermal conductivity measurement procedures for the fastest possible evaluation across a wide temperature range, coupled with the development of mathematical models for the quantitative evaluation of the most important influencing factors. | |
Funding Acknowledgement | The dataset was generated within the framework of the Research Training Group GRK 2802 (project ID: 461482547) funded by the German Research Foundation (DFG). | |
Public project website(s) | https://tu-freiberg.de/en/research/grk2802 | |
Project title | GRK2802_P3_ Thermal conductivity of functionalised materials based on recycled materials |