K R Rao
Articles written in Bulletin of Materials Science
Volume 6 Issue 4 September 1984 pp 805-806
Mechanical behaviour is decided by the structure and kinetics of defects in materials. External forces play an important role in determining the growth, decay and motion of defects. In addition there is an inherent fluctuation in the various microscopic characteristics of the system as the latter acts as a ‘heat bath’. A disturbance that is set up in the system is affected by these fluctuations. The response of the system to external forces can be related to the behaviour of the system due to intrinsic fluctuations in the absence of impressed forces. This is the basis of relation between study of fluctuations in the system and various relaxation phenomena observed. It is proposed to discuss certain features of this subject in relation to various material properties.
Volume 7 Issue 1 March 1985 pp 31-34
Molecular-dynamics computer-simulation of an ionic molecular solid LiKSO4 has been carried out at 300 and 1000 K using the atom-atom potentials obtained from lattice dynamical studies. We observe hopping of lithium ions to interstitial positions which is related to reorientations of sulphate tetrahedra.
Volume 14 Issue 3 June 1991 pp 603-605 International Conference On Superconductivity—II
Coherent inelastic neutron scattering measurements have been carried out on the high temperature superconductors Tl2CaBa2Cu2O8 (Tl-2122,
Volume 14 Issue 4 August 1991 pp 959-962 International Conference On Superconductivity—III
Rigid-ion model calculations of phonon dispersion relations, densities of states and partial densities of states of the high
Volume 42 | Issue 6
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