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Formation of a metastable phase due to the presence of impurities

Sear, RP (2005) Formation of a metastable phase due to the presence of impurities J. Phys.: Condens. Matter, 17. pp. 3997-4004.

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Abstract

Phase transitions into a new phase that is itself metastable are common; instead of the equilibrium phase nucleating a metastable phase does so. When this occurs the system is sometimes said to be obeying Ostwald's rule. We show how this can happen when there are impurities present that reduce the barrier to heterogeneous nucleation of the metastable phase. We do so by studying a Potts lattice model using Monte Carlo simulation. Thus, which phase forms depends not only on the properties of the different phases but also on the impurities present. Understanding why systems obey Ostwald's rule may therefore require a study of the impurities present.

Item Type: Article
Authors :
NameEmailORCID
Sear, RPr.sear@surrey.ac.ukUNSPECIFIED
Date : 6 May 2005
Identification Number : 10.1088/0953-8984/17/25/025
Uncontrolled Keywords : cond-mat.stat-mech, cond-mat.stat-mech, cond-mat.mtrl-sci
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 11:28
Last Modified : 17 May 2017 14:56
URI: http://epubs.surrey.ac.uk/id/eprint/831462

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