STRUCTURAL PECULIARITIES OF MULTICOMPONENT HYDRIDONITRIDES ON THE BASIS OF METALS OF IV-V GROUPS PRODUCED BY SHS METHOD

摘要

The experimental data are presented regarding combined influence of hydrogen and nitrogen on the synthesis of hydridonitrides on the base of Ti, Zr, Nb and V. The method of self-propagating high temperature synthesis (SHS) technique was used. The monophase hydridonitrides with HCP and FCC structure and high hydrogen content were formed: TiN_(0,3)H_(1,1); ZrN_(0,3)H_(1,53); Ti_(0,88)Zr_(0,12)N_(0,28)H_(1,39); Zr_(0,7)Nb_(0,3)N_(0,33)H_(1,15); Ti_(0,6)Nb_(0,4)N_(0,4)H_(1,1); Ti_(0,7)V_(0,3)N_(0,23)H_(0,8), etc. It was found that the presence of nitrogen promoted the dissolution of great amount of hydrogen. The total content of non-metals in described hydridonitrides was ∑_(at)= 58-65% (∑_(wt)= 5-9%). This is the main peculiarity of the obtained HCP hydridonitrides. The main peculiarity of FCC modification is the non-metal index higher of 1. The concentration triangles with separated regions of FCC and HCP hydridonitrides were created.