Characteristic temperatures determined by Ti-Ti, Ti-B, and B-B bonds in TiB
2 are evaluated Values for the heat capacity, thermal expansion coefficient
, bulk elasticity modulus, Gruneisen coefficient, and also exponents for Mi
e-Gruneisen, Morse, and Buckingham type potentials, and the critical pressu
re and volume of PV-diagrams are calculated for these bonds. The correspond
ing properties of these bonds and boride are noted Indices of the Buckingha
m potential point to the preferred covalent nature of Ti-Ti, Ti-B and B-B b
onds in titanium diboride.