Research on TiH2 thermal decomposition for melt hydrogenation process

The thermal decomposition of TiH2 during melt hydrogenation process is physically simulated by thermogravimetric analysis (TGA). The thermal decomposition characteristics of TiH2 are recorded during heating at different rate in a ceramic crucible in the condition of vacuum. The results depending on the thermogravimetry loss weight curve of TiH2 show that the initial temperature of thermal decomposition is between 465°C and 505°C, and does not greatly increase with the increasing of heat rate; but the terminal temperature dramatically increases. The decomposed weight percent of TiH2 decreases firstly and then increases with increasing heat rate, but the time interval for TiH2 decomposition decreases with increasing of heat rate.