Investigations of the process of liquid-phase sintering of powder compositions of the Cu–Al system were carried out. As a result, the dependence of their final porosity indicators on the corresponding initial factors, comprising sintering temperatures and the number of constituent components, was revealed. Based on the obtained experimental data, the dependences of the microstructure of Cu–Al system compositions having a 25% aluminum content on sintering temperature and aluminum concentration are presented. In the course of the research, the dependence of the aluminum solid phase distribution in the Cu–Al system on the sintering temperature was studied at various concentrations. Experimental data on determining the porosity of the Cu–Al system compacts, the amount of the solid phase component in the liquid, as well as the amount of aluminum in the solid phase after sintering, depending on its initial concentration, are presented. The sintering of Cu–Al system compacts is shown to proceed with the participation of the liquid phase. In this case, changes in the dimensions of the sintered briquettes, on which the stability of the resulting powder blanks depends, turns out to be important. The technique and results of dilatometric studies of changes in compact dimensions depending on the sintering temperature and the initial porosity of the workpieces are presented. Additionally, the dependence of the relative change in the sample length and the medium temperature on the aluminum composition concentration was investigated.

进行了Cu-Al体系粉末成分的液相烧结过程的研究。结果，揭示了它们的最终孔隙率指示剂对相应的初始因素的依赖性，所述初始因素包括烧结温度和组成成分的数量。根据获得的实验数据，提出了铝含量为25％的Cu-Al系统组成的微观结构对烧结温度和铝浓度的依赖性。在研究过程中，研究了不同浓度下Cu-Al体系中铝固相分布对烧结温度的依赖性。确定Cu-Al系统压块的孔隙率，液体中固相成分的量的实验数据，并给出了烧结后固相中铝的量，这取决于其初始浓度。Cu-Al系统压块的烧结被证明是在液相的参与下进行的。在这种情况下，烧结压块的尺寸变化是重要的，而所得粉末坯料的稳定性取决于该变化。提出了基于烧结温度和工件初始孔隙率的紧凑尺寸变化的膨胀学研究技术和结果。另外，研究了样品长度和介质温度的相对变化对铝成分浓度的依赖性。Cu-Al系统压块的烧结被证明是在液相的参与下进行的。在这种情况下，烧结压块的尺寸变化是重要的，而所得粉末坯料的稳定性取决于该变化。提出了基于烧结温度和工件初始孔隙率的紧凑尺寸变化的膨胀学研究技术和结果。另外，研究了样品长度和介质温度的相对变化对铝成分浓度的依赖性。Cu-Al系统压块的烧结被证明是在液相的参与下进行的。在这种情况下，烧结压块的尺寸变化是重要的，而所得粉末坯料的稳定性取决于该变化。提出了基于烧结温度和工件初始孔隙率的紧凑尺寸变化的膨胀学研究技术和结果。另外，研究了样品长度和介质温度的相对变化对铝成分浓度的依赖性。提出了基于烧结温度和工件初始孔隙率的紧凑尺寸变化的膨胀学研究技术和结果。另外，研究了样品长度和介质温度的相对变化对铝成分浓度的依赖性。提出了基于烧结温度和工件初始孔隙率的紧凑尺寸变化的膨胀学研究技术和结果。另外，研究了样品长度和介质温度的相对变化对铝成分浓度的依赖性。