Ring Shear Tester: The importance of Shear and Wall Friction Methodology for Arching Tendency Predictions

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Poster / Oct 18, 2021

Ring Shear Tester: The importance of Shear and Wall Friction Methodology for Arching Tendency Predictions

Authors:

Maria Paisana

Source:

AAPS 2021

Track: Manufacturing and Analytical Characterization – Chemical
Monday, October 18, 2021 | 10:30 AM – 11:30 AM ET

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maria paisana Analytical Development Scientist | ��ɫAV

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Presenting Author:��Maria Paisana��-��Senior Analytical Scientist, Analytical Development Group

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This work was focused on the analyses of pharmaceutical excipients and active pharmaceutical ingredients by a ring shear tester (RST-XS.s) using different shear and wall friction cells at different stresses. The work aimed at developing a methodology to obtain accurate predictions of powder flow through hoppers with different dimensions.��In detail, the yield locus and the wall yield locus data obtained for different materials were treated mathematically and data was validated by discharging the powders through hoppers with different wall angles.��

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