Equilibration kinetics of TiO 2  single  crystal at elevated temperatures | Zendy

Nowotny J. | Zendy; Bak T. | Zendy; Nowotny M. K. | Zendy; Sorrell C. C. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Equilibration kinetics of TiO 2 single crystal at elevated temperatures

Author(s) -

Nowotny J.,

Bak T.,

Nowotny M. K.,

Sorrell C. C.

Publication year - 2005

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200541187

Subject(s) - kinetics , crystallite , diffusion , single crystal , chemistry , crystal (programming language) , atmospheric temperature range , crystallography , oxygen , analytical chemistry (journal) , materials science , thermodynamics , physics , organic chemistry , quantum mechanics , computer science , programming language

The equilibration kinetics of single‐crystal TiO 2 were determined in the rapid kinetics regime (within the first 10 h) within narrow ranges of oxygen activities, p (O 2 ), under the conditions of 1198–1323 K and p (O 2 ) = 10 –10 –10 5 Pa. The determined chemical diffusion coefficient, D chem , is observed to exhibit a complex dependence on p (O 2 ). Comparison of D chem for single‐crystal and polycrystalline TiO 2 demonstrates that the grain boundaries have a retarding effect on the transport of defects. The present work represents the first assessment of the effect of nonstoichiometry on well defined D chem for TiO 2 within a wide range of p (O 2 ). (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research