SHS of fine-grained ceramics containing carbides, nitrides, and borides

Abstract

Fine-grained composites with high impact resistance (intentionally armor plates) were prepared from inexpensive raw materials by forced SHS compaction in the Ti-B-N-Cu (I) and Ti-B-N-C-Cu (II) systems ([Cu] = 0–10 wt %). The materials synthesized under optimized conditions were practically pore-free compacts with the following parameters: porosity 0.4–1.2%; hardness 91.5–92.5 and 92.3–93.3 HRA; density 4.3–4,4 and 4.5–4.7 g/cm3, for systems I and II respectively. The materials were found to withstand impacts with an energy of 18000–20000 J (for materials with d = 6.8–6.5 g/cm2).