Defects in Modified Titanium Hydride Crystals Subjected to Heat Treatment

Data on heat treatment of modified titanium hydride manufactured by x-ray phase and fluorescence methods are presented. General radiometric characteristics of titanium hydride, such as reflection area and intensity, interplanar spacing, etc. are investigated at temperatures in the interval 100-900A degrees D. It is revealed that heat treatment of titanium hydride at temperatures in the interval 100-700A degrees D causes diffraction line broadening. It is established that the main factors influencing the diffusion coefficient and the capability of hydrogen accumulation in the volume of the titanium hydride fraction, especially of the modified fraction, during heat treatment at temperatures in the interval 100-700A degrees D, are microdistortions and density of hydride crystal lattice defects when blocking microcracks on the fraction surface with a borosilicate protective coating. The most significant defects in the titanium hydride crystal lattice are manifested at a temperature of 500A degrees D. Hydrogen concentrated on the microdistortions of the titanium hydride crystal lattice is fixed at temperatures in the interval 600-700A degrees D at which the crystal lattice parameters considerably decrease and the crystallization systems are compacted.