Effect of Coating Matrix Synergistic Strengthening on the Strength of Ceramic Tile
The effect of α-Al2O3 and mullite particles on the phase composition,microstructure and flexural strength of building ceramic tile bodies were investigated by the design of a composite strengthening approach utilizing micro-particle enhanced prestressed coating. Based on the optimum composition obtained,the effect of raw material particle size on the mechanical performance of the tile bodies was further studied. The results show that when adding 4 wt％ α-Al2O3 and 6 wt％ mullite particles,with a ball milling time of 1.5 h,sintering temperature of 1150℃ and holding time of 30 minutes,the resulting tile body achieves a flexural strength of 112.3 MPa,which is 68.4％ higher than that of the unreinforced sample (66.7 MPa). On this basis,the prestressed coating was applied to enhance the reinforced green body for composite strengthening,and it was found that when 3％ ZnO was added to the CAS coating,it allowed for co-sintered with the reinforced green body at 1150℃,resulting in a composite tile with a flexural strength of 154.5 MPa,marking a 131.6％ improvement compared to the unreinforced sample.
NETL
NSTL
万方数据
