Evaluation of gravitational consolidation of binary powder mixtures by modified Heckel equation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F22%3A10450962" target="_blank" >RIV/00216208:11160/22:10450962 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wq3z0Z9~Ue" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wq3z0Z9~Ue</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2022.117729" target="_blank" >10.1016/j.powtec.2022.117729</a>

Result language

angličtina

Original language name

Evaluation of gravitational consolidation of binary powder mixtures by modified Heckel equation

Original language description

Consolidation of powders by tapping is an important quality test but it is time and material consuming, which encourages the use of mathematical modelling. This article aims to study this gravitational consolidation dy-namics by using nine binary mixtures consisting of cellets and powdered microcrystalline cellulose (MCC102), differing in size, shape, and consolidation properties. To describe the correlation between number of taps and powder bed density/ porosity, the modified Heckel equation. (MH) was newly introduced and compared to the models by Kawakita (KW) and Varthalis &amp; Pilpel (VP). High coefficients of determination were observed by applying the traditional KW model up to 80% of cellets, while a comparable fitting adequacy was obtained with the MH equation up to 50% of cellets in the mixtures. An increased content of MCC102 increased fitting ade-quacy in the MH and KW model, whereas a nearly opposite mixture trend was observed for the VP model.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30104 - Pharmacology and pharmacy

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Powder Technology

ISSN

0032-5910

e-ISSN

1873-328X

Volume of the periodical

408

Issue of the periodical within the volume

August

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

117729

UT code for WoS article

000841811500002

EID of the result in the Scopus database

2-s2.0-85134589742