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Journal of Nanoparticle Research

, Volume 12, Issue 5, pp 1859–1868 | Cite as

Phase transformations of nanoparticles exposed to hydrostatic pressure

  • Dieter Vollath
  • Franz Dieter Fischer
Research Paper

Abstract

A thermodynamic analysis of phase transformations of nanoparticles under hydrostatic pressure has revealed important differences between phase transformations under isothermal or adiabatic conditions. This presuppositionless analysis fully explains a hysteresis with respect to the phase fraction and the pressure observed experimentally. It is important to mention that the results of this analysis may be transferred to the role of any external volumetric field acting on phase transforming nanoparticles. Typical examples are phase transformations of ferromagnetic intermetallics subjected to the influence of magnetic fields.

Keywords

Nanocrystalline material Phase transformation Thermodynamics Fluctuation Hysteresis Hydrostatic pressure Heat transfer Modeling and simulation 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.NanoConsultingStutenseeGermany
  2. 2.Institute of MechanicsMontanuniversität LeobenLeobenAustria

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