Self-propagating high-temperature synthesis (SHS) in the Ni–Al–Ti–B system has been carried out. The aim of the study is to obtain, in one process step, a composite material with a ceramic and intermetallic framework and a developed porous structure in combustion mode from the boron–titanium–large nickel-clad aluminum granules powder system pressed by successive batch compaction method. The synthesis process is characterized by a stage nature, in which a highly exothermic reaction between titanium and boron form a boride matrix with developed open porosity and acts as a “chemical furnace” to maintain the reaction in the clad granules, in which nickel aluminides appeared. The aluminide melt impregnates the porous diboride matrix. The synthesis stages are reflected in the thermograms of the process. The final structure of the product has a multiscale porosity, a characteristic feature of which is large round pores (~100–160 μm in diameter) whose location corresponds to the position of clad granules in the initial powder system. Small (0.1–5.0 μm) and some average-sized (up to 15 μm) diboride matrix pores are filled with nickel aluminides. The resulting material has a composite structure of the type of interpenetrating frameworks—ceramic (TiB₂) and aluminide (NiAl, Ni₃Al). The diboride matrix is ​​formed by chaotically oriented hexagonal small crystals predominantly 0.2–1.0 μm across in size. At the boundaries with macropores, crystal diboride grains increase in size up to 2–6 μm in diameter and 0.5–2.0 μm in thickness, acquiring a more pronounced platelike shape. The main size of intermetallic interlayers filling the pores between the diboride crystal grains is ~0.2–1.0 μm.

Ni-Al-Ti-B系统中已进行了自蔓延高温合成（SHS）。该研究的目的是在一个工艺步骤中，通过连续分批压制的硼-钛-大镍包覆铝颗粒粉末系统，在燃烧模式下获得具有陶瓷和金属间化合物骨架并具有发达的多孔结构的复合材料。方法。合成过程的特征在于阶段性，其中钛和硼之间的高度放热反应形成具有开放孔隙率的硼化物基质，并充当“化学炉”以维持包覆颗粒中的反应，其中出现了铝化镍。铝化物熔体浸渍多孔二硼化物基质。合成阶段反映在该过程的热分析图中。产品的最终结构具有多尺度的孔隙度，其特征是较大的圆形孔隙（直径约100-160μm），其位置与初始粉末系统中包覆颗粒的位置相对应。小（0.1–5.0μm）和一些中等大小（最大15μm）的二硼化物基质孔充满了铝化镍。所得材料具有互穿框架类型的复合结构-陶瓷（TiB₂）和铝化物（NiAl，Ni ₃ Al）。二硼化物基质由混沌取向的六角形小晶体形成，大小主要为0.2-1.0μm。在大孔的边界处，二硼化物晶体晶粒的尺寸增加，直径最大为2–6μm，厚度最大为0.5–2.0μm，获得更明显的板状形状。填充二硼化物晶粒之间的孔的金属间层的主要尺寸为〜0.2–1.0μm。