Paper Title:
Specific Features of Jahn-Teller Structure Phase Transitions in Nanocrystalline Materials
  Abstract

Specific features of the structural phase transitions of the first order were investigated in nanosized crystals with Jahn-Teller ions. As an example the phase transitions of martensite type with changes in symmetry from a cubic to a tetragonal one have been considered. The Kanamori model was used to take into account the size of nanocrystallites and the distribution of cations over non-equivalent crystallographic sublattices in such systems. It was shown the temperature and the latent heat of the transition decrease significantly for the nanoscaled grains. A possibility of multi-phase state for nanocrystalline materials was considered.

  Info
Periodical
Defect and Diffusion Forum (Volumes 283-286)
Edited by
Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar
Pages
53-58
DOI
10.4028/www.scientific.net/DDF.283-286.53
Citation
A. Y. Fishman, M.A. Ivanov, S.A. Petrova, N. Tkachev, V. B. Vykhodets, R. G. Zakharov, "Specific Features of Jahn-Teller Structure Phase Transitions in Nanocrystalline Materials", Defect and Diffusion Forum, Vols. 283-286, pp. 53-58, 2009
Online since
March 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: N.I. Vlasova, V.S. Gaviko, A.G. Popov, N.N. Shchegoleva, L.A. Stashkova, Dmitriy Gunderov, Xavier Sauvage
Abstract:Equiatomic FePd alloy in the ordered state has been processed by means of high-pressure torsion deformation (HPTD) and then annealed. X-ray...
392
Authors: Dinesh Ragurajan, Mohsen Golieskardi, Meenaloshini Satgunam, Angela Min Hwei Ng
Chapter 2: Ceramic Materials
Abstract:The effect of manganese oxide (MnO2) and aluminum oxide (Al2O3) addition of up to 1 wt% in yttria-stabilized...
42