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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/20982

Title: Measuring the flow properties of small powder samples using an avalanche tester
Authors: Jaggi, V.
Leaper, Mark C.
Ingham, Andrew J.
Keywords: Pharmaceuticals
Powder technology
Rotary drying
Issue Date: 2016
Publisher: © Taylor & Francis
Citation: JAGGI, V., LEAPER, M. and INGHAM, A., 2016. Measuring the flow properties of small powder samples using an avalanche tester. Drying Technology, 34 (6), pp.723-728.
Abstract: The feasibility of using a small-scale avalanche tester to measure the flow properties of pharmaceutical lactose powders was examined. The modes of behavior observed in larger systems were displayed and showed a clear distinction between angular, free-flowing particles and more spherical particles of similar flow characteristics. Angular Lactohale LH100 particles showed slumping behavior at a rotational frequency of 0.33 Hz that disappeared at higher frequencies. Spherical lactose powder with a similar flow function to LH100 only showed rolling behavior under the same conditions, as did more cohesive powders LH200 and LH300. Further investigation of the LH100 data using fast Fourier analysis showed that the slumping frequency was one tenth of the rotational frequency.
Description: This is an Accepted Manuscript of an article published by Taylor & Francis in Drying Technology on 27/07/2015, available online: http://dx.doi.org/10.1080/07373937.2015.1072093.
Version: Accepted for publication
DOI: 10.1080/07373937.2015.1072093
URI: https://dspace.lboro.ac.uk/2134/20982
Publisher Link: http://dx.doi.org/10.1080/07373937.2015.1072093
ISSN: 0737-3937
Appears in Collections:Published Articles (Chemical Engineering)

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