The study of an effect of iron doping on the structural, microstructural and mechanical properties of sintered iron-doped mullite is presented. The results of phase composition, performed in detail by Mössbauer spectroscopy and XRD analysis, revealed that all added iron was inside the mullite lattice forming the single phase up to 12% by weight of Fe₂O₃ and 1300 °C. Samples, which were processed at 1550 °C, contained secondary phases, hematite or magnetite, regardless of the amount of added iron. Furthermore, the addition of iron decreases the values of relative linear shrinkage comparing to the values of undoped one (~18%) while the densities of the sintered samples rise as well as their values of microhardness. Even though the density values were not too high (90 TD%), the obtained values of microhardness were excellent, 1634 HV0.1 for maximum iron content due to the characteristic mullite microstructure.

提出了铁掺杂对烧结铁掺杂莫来石的结构，微结构和力学性能的影响的研究。通过Mössbauer光谱和XRD分析详细进行的相组成结果表明，所有添加的铁都在莫来石晶格内，形成单相，最多占Fe ₂ O _3的12％（重量）和1300°C。在1550°C的温度下处理的样品包含第二相，赤铁矿或磁铁矿，而与铁的添加量无关。此外，铁的添加与未掺杂的铁的值（〜18％）相比降低了相对线性收缩的值，而烧结样品的密度以及它们的显微硬度值则有所提高。即使密度值不太高（90 TD％），由于特有的莫来石微结构，所获得的显微硬度值还是极好的，最大铁含量为1634 HV0.1。