采用氮化反应烧结工艺制备-Sialon/刚玉复相耐火材料. 结果表明, 在低于14501600C下的流动氮气气氛中直接氮化反应一定比例的Al、Si、Al2O3微粉, 以及刚玉细粉和颗粒, 可以制备不同Z值的-赛隆(Si6-zAlzOzN8-z)/刚玉复相材料. 但是，最终产物中的-赛隆相的Z值与设计值存在偏差，这可能与反应过程有关. 不同Z值的-赛隆/刚玉复相材料均显示良好的抗渣铁侵蚀性. 同时抗碱试验表明，当预设计Z值为1.52.5时具有良好的抗碱性能，而当预设计Z值等于4时，抗碱性下降，这可能与复相材料中Sialon含量及其Z值有关.
Sialon/corundum composite refractories were prepared by using Al, Si metal powders, Al2O3 fine powder, and corundum aggregates as raw materials at the temperatures lower than 1600C by nitridation sintering process. It shows that -Sialon (Si6-zAlzOzN8-z), corundum, 15R phase appear in all the resultant products different in the contents of -Sialon, 15R and the Z value of -Sialon, even though only -Sialon and corundum phases are expected in designed materials. And the Z value of the produced -Sialon is deviated from the designed value. Such facts were supposed to be related to the reaction progress. Additionally, these -Sialon/corundum composite refractories were tested by alkali, molten slag and steel. The results show that composite refractories of -Sialon with Z=1.52.5 have good lkali resistance and all of the composite refractories have good molten slag and steel resistance
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