PT  - JOURNAL ARTICLE
AU  - Wang, Xianewei
AU  - Xu, Wenlong
AU  - Yu, Hailong
AU  - Li, Chenyang
AU  - Zhao, Haikuo
AU  - Feng, Yihang
AU  - Fang, Caiqi
AU  - Zhang, Heng
AU  - Xu, Aihua
AU  - Xie, Wentao
AU  - Li, Xiulian
TI  - Study on Thermo-Structural Coupling Mechanism and Multi-Field Evolution Law during the Firing Process of Ceramic Slabs
DP  - 2026 Mar 21
TA  - Manufacturing Technology Journal
PG  - 106--116
VI  - 26
IP  - 1
AID - 10.21062/mft.2026.012
IS  - 12132489
AB  - To address cracking and deformation in large-size ceramic slabs during firing induced by thermo-structural coupling, this study established an indirect thermo-structural coupling finite element model in Ansys to analyze an 820 mm×100 mm×6.32 mm slab. The evolution of temperature field, stress field, and deformation was investigated across four firing stages. Results indicate that the rapid cooling stage, with a high convective heat transfer coefficient, forms the cycle's maximum thermal gradient, showing the most asymmetric temperature field of mid-plane high, surfaces low and a ~17°C surface-mid-plane temperature difference. The stress field follows a low-high-declining-stable trend, peaking in rapid cooling of 23 MPa maximum equivalent stress in the thickness section and 11 MPa maximum principal stress at the glaze-body interface. Thermal gradient, glaze-body CTE mismatch, and boundary constraints respectively drive stress generation, interface concentration, and asymmetric distribution. Deformation obeys length > width > thickness in rapid cooling, lengthwise deformation is 8.2 times the width. Thickness-direction drum-shaped deformation stems from glaze-body CTE mismatch. This study reveals the firing thermo-structural coupling mechanism, providing theoretical support for optimizing firing processes and glaze-body formulations, with significant engineering value for reducing cracking and improving dimensional stability.