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Comparison of models for the characterization of solids mixtures

✍ Scribed by H.Gjelstrup Kristensen

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 585 KB
Volume: 33
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(78)80017-7

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✦ Synopsis

Ab&act-Previous studies on the charactenzatlon of solids mixtures have shown that the variance of the sample composttlon can be related to the structure of the actual rruxture by mtroducmg a correlation function which expresses the correlation between mixture element cornposItions agamst the distance between the elements The paper compares two theoretical models which were based upon (I) a descnptlon m terms of the &Crete umt elements in the mixture, and (II) a descnption at which the mixture IS considered to be a contmuum The comparison demonstrates that the derived equations for the sample vmance are mathematzcally consistent However, equations for the sampIe vmance are not equivalent due to fundamental differences at the evaluation of the correlation function The choice of model must therefore depend on the actual sampling technique

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