Our own data of PH2 and theoretical curves over "TiH2"

A noticeable result is:


The published version is available HERE.

Abstract
Hydrogen gas has been equilibrated with the hydrogen dissolved in titanium.
The equilibrium pressure (<10 MPa) of the gas and the hydrogen concentration (40 - 70 mol pct)
in titanium have been measured at 576 to 980 K by Sieverts' method. A Gibbs-Duhem integration
has been made to obtain the thermodynamic activity of titanium and the formation properties of the
"TiH2" phase. Interaction energies between neighboring atoms in the hydride have been evaluated
by applying a quasi-chemical model of statistical thermodynamics.