The nanocrystalline forming by combustion synthesis of Ti (Zr) hydrides

The experimental data concerning nanoscale hydrides of transition metals, obtained by synthesis in combustion wave are presented. The systems Ti–H, Zr–H, Ti–N–H, Zr–N–H, Ti–Zr–N–H were studied. In all samples, the dimensions of grains were as low as 50 nm. The peculiarities of self-propagating high-temperature synthesis processing and structure causes of this phenomena are discussed. The relations between cubic structure of TiH2 hydride and hexagonal structure of Ti-hydridonitride were demonstrated.