- Tytuł:
-
Wzór Scherrera : stulecie błędnych praktyk
Scherrer formula : the century of erroneous practices - Autorzy:
- Tomaszewski, P. E.
- Powiązania:
- https://bibliotekanauki.pl/articles/172133.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polskie Towarzystwo Chemiczne
- Tematy:
-
Wzór Scherrera
nanomateriały
badania dyfrakcyjne
rozmiar krystalitów
Scherrer's formula
nanomaterials
diffraction studies
grain size - Opis:
- 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.
- Źródło:
-
Wiadomości Chemiczne; 2013, 67, 9-10; 929-942
0043-5104
2300-0295 - Pojawia się w:
- Wiadomości Chemiczne
- Dostawca treści:
- Biblioteka Nauki
Artykuł