Keyword: «iron-carbon powders»

An urgent task of materials science of composites is the study of the filler-matrix boundaries. The aim of the work is analysis of the structural-phase state of the «diamond-iron-carbon matrix» interphase boundary of diamond composites obtained using explosive compacting and subsequent heating. Research methods used: optical and scanning electron microscopy, X-ray phase analysis. The formation of high-strength and wear-resistant boron and chromium carbides at the interphase boundary was revealed, which supplemented the mechanical adhesion of the chemical one, increased the diamond retention and operational properties of the experimental composites. The data obtained can be used in the development of highly effective diamond-abrasive composites with controlled properties.