Statistical method for determination of the specific surface of powders and bulk materials
1.
SYSNO ASEP
0333443
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Statistical method for determination of the specific surface of powders and bulk materials
Author(s)
Jandačka, P. (CZ) Hlaváč, L. (CZ) Uhlář, R. (CZ) Mádr, V. (CZ) Vašek, Jaroslav (UGN-S)
Number of authors
5
Source Title
Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava, Řada strojní
- ISSN 1210-0471
Roč. 55, č. 1 (2009), s. 125-130
Number of pages
6 s.
Language
eng - English
Country
CZ - Czech Republic
Keywords
ideal particle surface ; bulk materials ; powders
Subject RIV
JI - Composite Materials
CEZ
AV0Z30860518 - UGN-S (2005-2011)
Annotation
Calculation methods for determination of specific surface of powders and bulk materials often followed approximation of the ideal particle surface, most often the smooth sphere. During calculation of the specific powder surface the character of the probability distribution that controls the size of powder particles is not taken into account. This is the logarithmic-normal distribution. Usually, even the dispersion of particle sizes from the average size is not taken into account, in spite of the fact that the average particle size does not correspond to the particle size belonging to the average or volume. The current status of these problems is described in this article. The mentioned shortcoming in the calculation of the specific surface of powder particles can be eliminated by the method of calculation that uses the statistical-mathematical tools suggested by the authors of this article.
