The possibility of producing ultra-high-temperature composite Ta4ZrC5 by a single-stage method was experimentally studied. The method combines the exothermic synthesis by electrothermal explosion and the consolidation of the hot product under quasi-isostatic compression. The effect of the mechanical activation of the reaction mixture of powders of tantalum, zirconium, and carbon on the formation of the phase composition of Ta4ZrC5 ceramic composite was investigated. The conditions for producing single-phase ultra-high-temperature composite were determined. Composites with an average particle size of 1–2 μm and a residual porosity of 8–10% were obtained.

中文翻译：

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单相超高温复合材料Ta4ZrC5的放热合成与固结

实验研究了单步法制备超高温复合Ta4ZrC5的可能性。该方法将电热爆炸的放热合成和热产品在准等静压下的固结相结合。研究了钽、锆和碳粉末反应混合物的机械活化对Ta4ZrC5陶瓷复合材料相组成形成的影响。确定了制备单相超高温复合材料的条件。获得了平均粒径为 1-2 μm 且残余孔隙率为 8-10% 的复合材料。