D. A. Osipov, A. D. Ishkov, I. V. Smirnov, K. V. Grinyaev, I. A. Ditenberg
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引用次数: 0
Abstract
The influence of high-energy ball milling duration on the microhardness values of the precursors from the Nb–Al powder mixture is studied. The main stages of microhardness increase, characterized by the specificity of its values change relative to the HEBM duration, are identified. As the microhardness values increase, an increase in the spread of its values is observed, which indicates the heterogeneity of the structural-phase state. Structural investigation methods have established that after 3.5 min HEBM an ordered AlNb2 compound is formed, the volume fraction of which is about 4%. It is assumed that the presence of particles of a strong ordered phase makes the main contribution to the strengthening of the powder mixture precursor.
研究了高能球磨时间对铌铝混合粉末前驱体显微硬度值的影响。确定了显微硬度增加的主要阶段，其特征是其值相对于HEBM持续时间的特异性变化。随着显微硬度值的增大，其分布范围增大，表明了结构相状态的非均匀性。结构研究方法确定在3.5 min HEBM后形成有序的AlNb2化合物，其体积分数约为4%。假设强有序相颗粒的存在对粉末混合物前驱体的强化起主要作用。
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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