Pressure And Temperature Induced Elastic Properties Of Am and Cf Monobismuthides

The pressure and temperature dependent mechanical properties as melting temperature, hardness and brittle nature of XBi (X = Am and Cf) are studied. The rare earth actinides pnictides showed a structural phase transition (B1-B2) at a transition pressure (PT) of 14.3GPa (AmBi) and 10.8GPa (CfBi). Pressure dependence of melting temperature (T-m) discerns an increase inferring the hardening or stiffening of the lattice as a consequence of bond compression and bond strengthening. Suppressed T-M as functions of temperature infers the weakening of the lattice results in bond weakening in XBi (X = Am, Cf). Vickers Hardness (HV), Poisson's and Pugh ratio of XBi (X = Am and Cf) demonstrates that XBi (X = Am and Cf) is mechanically stiffened, thermally softened and brittle on applied pressure and temperature.