Abstract―

The phase composition and structure of the composite ceramic material (HfTiCN)-TiB₂ obtained from the high-entropy system Hf–Ti–C–N–B in the mode of conjugated self-propagating high-temperature synthesis (SHS, combustion) has been studied. Quantification using the Rietveld method has shown that the content of the HfTiCN phase in the combustion products is 40 wt %, and the content of the TiB₂ phase is 60 wt %. It has been established that the structure of SHS materials consists of HfTiCN particles and agglomerates, which are distributed in the TiB₂ matrix. The average particle size of TiB₂ and HfTiCN is 6.1 and 3.3 µm, respectively. A probable mechanism for the formation of a composite material (HfTiCN)-TiB₂ in the mode of coupled self-propagating high-temperature synthesis of the Hf–Ti–C–N–B system is proposed. The results presented indicate the fundamental possibility of obtaining a composite ceramic material (HfTiCN)-TiB₂ by the method of self-propagating high-temperature synthesis.

中文翻译：

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高熵陶瓷 (HfTiCN)-TiB2 的合成、结构和相组成

摘要―

高熵体系Hf-Ti-C-N-B以共轭自蔓延高温合成（SHS，燃烧）模式得到的复合陶瓷材料（HfTiCN）-TiB ₂的相组成和结构具有被研究过。使用 Rietveld 方法的量化表明，燃烧产物中 HfTiCN 相的含量为 40 wt%，TiB ₂相的含量为 60 wt%。已经确定SHS材料的结构由分布在TiB ₂基体中的HfTiCN颗粒和附聚物组成。_{TiB 2}和 HfTiCN的平均粒径分别为 6.1 和 3.3 µm。形成复合材料（HfTiCN）-TiB _{2的可能机制}提出了耦合自蔓延高温合成 Hf-Ti-C-N-B 体系的模式。所呈现的结果表明通过自蔓延高温合成的方法获得复合陶瓷材料(HfTiCN)-TiB _{2的基本可能性。}