The macrokinetic features of combustion in the Ta-Zr-B system were studied. Combustion is characterized by spin mode, suggesting the limiting role of gas-phase mass transfer of reagents. The mechanism of chemical reactions and phase formation in combustion wave was discussed. Primary layers of tantalum and zirconium borides were detected in the preheating zone at temperatures below the melting point of the reagents. After zirconium and boron melt, the temperature in the combustion zone reaches its maximum and zirconium diboride precipitates out of the oversaturated solution. Powders with a grain size of 1–3 μm were fabricated and hot-pressed into dense ultra-high-temperature ceramics (UHTCs). Boride ceramics with the record-setting hardness of 70 GPa, Young's modulus of 594 GPa, and elastic recovery of 96% were obtained. The measured heat conductivity of the solid solution (Zr,Ta)B₂ was equal to 35–42 W/m K. Plasma torch tests demonstrated high oxidation resistance of the obtained ceramics at 2900–3000 °C.

研究了Ta-Zr-B系统中燃烧的宏观动力学特征。燃烧以自旋模式为特征，表明试剂气相传质的局限性。讨论了燃烧波中化学反应和相形成的机理。在低于试剂熔点的温度下，在预热区内检测到钽和硼化锆的主要层。锆和硼熔化后，燃烧区的温度达到最高，二硼化锆从过饱和溶液中沉淀出来。制备了粒径为1-3μm的粉末，并将其热压成致密的超高温陶瓷（UHTC）。获得了具有创纪录的70 GPa硬度，杨氏模量594 GPa和96％的弹性回复率的硼化物陶瓷。₂等于35–42 W / mK。等离子炬测试表明，所获得的陶瓷在2900–3000°C下具有较高的抗氧化性。