Formation and Annealing of Micropores in Hematite

• Authors: C. Dauwe , G.M. Da Costa , T. Van Hoecke , D. Segers
• Languages of publication: EN

Abstracts

EN

In iron oxide powders positrons are trapped in the surface layers and the value of the S-parameter is an indicator of the total specific surface, including external surface and internal surfaces of micropores. The evolution of micropores is followed when α-FeOOH is thermally decomposed into α-Fe_{2}O_{3}. It is shown that the micropore formation is not linked to the decomposition process, but that they also form in hematite synthesized from a ferrihydrite precursor in aqueous solution.

Keywords

EN

78.70.Bj

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 1
• Pages: 119-123

Dates

published

1995-07

Contributors

author

C. Dauwe

• Section Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, 9000 Gent, Belgium

author

G.M. Da Costa

• Section Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, 9000 Gent, Belgium

author

T. Van Hoecke

• Section Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, 9000 Gent, Belgium

author

D. Segers

• Section Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, 9000 Gent, Belgium