Articles written in Bulletin of Materials Science
Volume 1 Issue 3-4 December 1979 pp 227-240
A brief review is provided of the subject of nonequilibrium phase transitions occurring in various systems in different disciplines. All these systems exhibit a similar kind of ordering phenomena at a macroscopic level and can therefore be classified in terms of appropriate order parameters. Typical order parameter equations are discussed in the light of Landau’s phenomenological theory of phase transitions. The instabilities occurring in a few chemical reactions are discussed in some detail and the role of fluctuations pointed out. Mention is also made of the possibility of viewing some metallurgical phenomena as examples of nonequilibrium phase transitions.
Volume 3 Issue 2 July 1981 pp 133-139 Biswas Memorial Symposium On The Chemistry And Physics of Solids, Phase Transitions
The concept of tricritical points is introduced by way of examples of ordinary liquid mixtures and mixtures of normal He3 and superfluid He4. A prototype Ising spin model is used for a qualitative discussion of the mechanisms behind the occurrence of tricritical phenomena. Mention is also made of the other theoretical developments.
Volume 19 Issue 1 February 1996 pp 15-28
A brief overview is given on low temperature diffusive behaviour of H in Nb(OH)
Volume 20 Issue 4 July 1997 pp 481-489
Monte-Carlo simulations are described using the Kawasaki model of oxygen (dis)ordering in the basal plane of YBa2Cu3O7−δ(YBCO). In this model the presence or absence of an interstitial oxygen defect is mapped into a pseudo Ising spin
Volume 42 | Issue 6
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