Presented are the results of the investigations of the structure and mechanical properties of consolidated MgB₂-based superconducting materials produced under high pressures and temperatures and hot pressing. It is established that the formations of inclusions of higher borides of phases with stoichiometry, close to MgB₁₂, considerably influenced on the level of the density of a critical current and mechanical properties of superconductive materials, in particular, leads to increase of the microhardness. The presence of additions of the Ti and SiC (10%), which positively influences the level of superconducting properties, accompanies by the change of mechanical properties, which are testify to the influence of the additions on the formations of MgB₁₂ inclusions.

中文翻译：

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MgB 2基超导材料的力学性能

提出的是在高压，高温和热压下生产的固结MgB ₂基超导材料的结构和力学性能的研究结果。已经确定的是，具有接近化学计量的较高硼化物相的夹杂物的形成接近于MgB ₁₂，这极大地影响了临界电流的密度水平和超导材料的机械性能，特别是导致了超硬性的提高。机械性能的变化伴随着Ti和SiC的添加物（10％）的存在，这些添加物对超导性能的水平产生了积极影响，这证明了添加物对MgB ₁₂形成的影响 夹杂物。