Identyfikatory
Warianty tytułu
Scherrer formula : the century of erroneous practices
Języki publikacji
Abstrakty
We present the sources of uncertainty in the evaluation of grain size in nanomaterial. The calculations are made for the same diffraction pattern using Scherrer and Williamson-Hall methods. As an example we use the CoCr2O4 nanocrystal. The comparison of results from different calculations, methods and programs is made just to show how important is the (correct) choice of a method and its internal parameters. The data from well known Scherrer formula, show that the difference in obtained results exceeds 100% up to even about 350%. This indicates that in any case the Scherrer formula could not give the correct and reliable value for crystallite size. As a consequence, the wide use of this formula is a great error providing the incorrect results.
Wydawca
Czasopismo
Rocznik
Tom
Strony
929--942
Opis fizyczny
Bibliogr. 9 poz., wykr.
Twórcy
autor
- Instytut Niskich Temperatur i Badań Strukturalnych Polska Akademia Nauk P. Nr 1410, 50-950 Wrocław 2
Bibliografia
- [1] P. Scherrer, Nachr. Ges. Wiss. Gottingen, 1918, 26, 98.
- [2] H. Natter, M.Schmelzer, M.-S. Loffler, C.E. Krill, A. Fitch, R. Hempelmann, J. Phys. Chem. B, 2000, 104, 2467.
- [3] R.J. Matyi, L.H. Schwartz, J.B. Butt, Catal. Rev. - Sci. Eng., 1987, 29, 41.
- [4] G.K. Williamson, W.H. Hall, Acta Metall., 1953, 1, 22.
- [5] J.D. Martin, XPowder12, ver. 02.12 (2012).
- [6] T. Roisnel, J. Rodriguez-Carvajal – WinPLOTR, ver. Sept. 2012.
- [7] M. Bortolotti, L. Lutterotti, I. Lombardelli, J. Appl. Cryst., 2009, 42, 538.
- [8] D. Balzar, N. Audebrand, M.R. Daymond, A. Fitch, A. Hewat, J.I. Langford, A. Le Bail, D. Louer, O. Masson, C.N. McCowan, N.C. Popa, P.W. Stephens, B.H. Toby, J. App. Crys., 2004, 37, 911.
- [9] J.-D. Lin, J.-G. Duh, J. Mater. Sci., 1997, 32, 5779.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ebc8e644-2103-458a-98d6-7dd319b8e32d