Abstract

The production of the ultra-high-temperature composite Hf₄ZrC₅ by a single-stage method of electrothermal explosion under pressure was experimentally investigated. The effect of mechanical activation on the characteristics of the reaction powder mixture and the formation of the phase composition of the ceramic composite Hf₄ZrC₅ was studied. The preliminary mechanical activation of a mixture of Hf, Zr, and C powders in hexane enabled one to obtain the ultra-high-temperature composite Hf₄ZrC₅ with a particle size of less than 1 µm and a residual porosity of 10‒12%.

中文翻译：

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电热爆炸加压产生的超高温复合Hf 4 ZrC 5

摘要

实验研究了单级加压电热爆炸法制备超高温复合Hf ₄ ZrC ₅的方法。研究了机械活化对反应粉末混合物特性和陶瓷复合材料Hf ₄ ZrC ₅相组成的影响。对Hf，Zr和C粉末在己烷中的混合物进行初步的机械活化，可以制得粒径小于1 µm且剩余孔隙率为10‒12％的超高温复合Hf ₄ ZrC ₅。 。