本发明属于耐火材料技术领域，提出一种层状刚玉‑尖晶石耐火材料的制备方法。提出的一种层状刚玉‑尖晶石耐火材料的制备方法：选用液态陶瓷先驱体聚氮硅烷为骨架材料，仲丁醇铝为掺杂Al源，以二乙烯甲苯增加碳碳双键数量，以环己烷为溶剂，制备Si Al CN陶瓷前驱体；将Si Al CN陶瓷前驱体、复合结合剂和Ni (NO3)2.6H2O与Al2O3粉体混合得到混合料，混合料冷压成型制得氧化铝坯体；采用流延成型制备尖晶石薄坯；然后采用热压叠层，将尖晶石薄坯与氧化铝坯体交替叠层制备多层刚玉‑尖晶石坯体；尖晶石薄坯与氧化铝坯体交替叠层制备获得多层协同增强的超低碳刚玉‑尖晶石耐火材料。本发明具有良好的抗热震性能。

The invention belongs to the technical field of refractories, and a preparation method of layered corundum-spinel refractories is proposed. A preparation method of layered corundum-spinel refractory was proposed: The precursor of SiAlCN ceramics was prepared by using liquid ceramic precursor polynitrosilane as skeleton material, aluminum sec-butyl alcohol as doping Al source, increasing the number of carbon-carbon double bonds with diethylene toluene, and cyclohexane as solvent. The mixture of SiAlCN ceramic precursor, composite binder, Ni (NO3) 2.6H2O and Al2O3 powder was prepared, and the alumina billet was prepared by cold pressing. spinel thin slab was prepared by tape casting; then, the multi-layer corundum-spinel billets were prepared by alternating stacking of spinel thin billets and alumina billets by hot pressing. Ultra-low carbon corundum-spinel refractories with multi-layer synergistic reinforcement were prepared by alternating stacking of spinel thin slab and alumina slab. The invention has good thermal shock resistance.