The results of studies of the effect of alumina nanofiber on the physical and mechanical characteristics of refractory concrete NPC-21AC are presented. It is shown that the use of nanofibers increases the flexural strength by 50 % and compressive strength by 30% with a 15% decrease in Young’s modulus. An increase in physical and mechanical characteristics leads to a 54 – 72% increase in thermal resistance, depending on the rate of heat transfer. The results of the study of the microstructure of the obtained material are presented.

中文翻译：

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纳米氧化铝纤维对耐火混凝土耐热性影响的研究

给出了研究氧化铝纳米纤维对耐火混凝土NPC-21AC的物理和力学性能的影响的研究结果。结果表明，使用纳米纤维可使杨氏模量降低15％，抗弯强度提高50％，抗压强度提高30％。物理和机械特性的提高导致热阻提高54 – 72％，具体取决于传热的速率。给出了所获得材料的微观结构的研究结果。