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Phase Stability of Nanoanatase
Author(s) -
Lu H.M.,
Zhang W.X.,
Jiang Q.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200300359
Subject(s) - nanocrystalline material , materials science , thermodynamics , anatase , phase (matter) , rutile , stability (learning theory) , particle (ecology) , nanotechnology , chemical engineering , physics , chemistry , quantum mechanics , catalysis , biochemistry , photocatalysis , machine learning , computer science , engineering , oceanography , geology
A more precise determination of the critical particle size D c for phase stability between nanocrystalline anatase and rutile is outlined by the authors. The predicted D c value of 14 nm with a very weak temperature dependence between 550 and 850 °C (instead of an otherwise published D c of 15 nm), which is deducted from theoretical calculations, is in agreement with thermodynamic measurements also presented.