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向Fe-α-Al2O3—莫来石三元系透气性金属—陶瓷复合材料(简称基体材料)中添加Ca-PSZ,考察了部份稳定化ZrO2对基体材料的强韧性、物理性能和组织结构的影响。结果表明正方t-ZrO2能较大幅度地提高基体材料的抗压强度、抗弯强度和冲击韧性,但对表征透气性优劣的显气孔率指标影响不显著。当Ca-PSZ含量为9%时,基体材料的抗压强度、抗弯强度和冲击韧性同时达到极大值。其主要原因是Ca-PSZ中t→m转变产生相变增韧和弥散强化所致。
Ca-PSZ was added to the Fe-α-Al2O3-mullite ternary gas-permeable metal-ceramic composite (referred to as the matrix material) to investigate the toughness, physical properties and microstructure of the partially stabilized ZrO2 matrix Impact. The results show that the square t-ZrO2 can significantly improve the compressive strength, flexural strength and impact toughness of the matrix material, but not obvious for the apparent porosity index which characterizes the air permeability. When the Ca-PSZ content is 9%, the compressive strength, flexural strength and impact toughness of the matrix material reach the maximum simultaneously. The main reason is that the transition of t → m in Ca-PSZ results in transformation toughening and dispersion strengthening.