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Title: A novel rheometer design for yield stress fluids

Source: AIChE Journal, April 2014. Volume 60, Number 4, 2014; pp. 1523-1528.

Author(s)Samaniuk, Joseph R.; Shay, Timothy W.; Root, Thatcher W.; Klingenberg, Daniel J.; Scott, C. Tim

Publication Year: 2014  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-1B

Abstract: An inexpensive, rapid method for measuring the rheological properties of yield stress fluids is described and tested. The method uses an auger that does not rotate during measurements, and avoids material and instrument-related difficulties, for example, wall slip and the presence of large particles, associated with yield stress fluids. The method can be used for many types of yield stress fluids, including concentrated lignocellulosic biomass. Sample preparation prior to measurement is minimal, reducing, or eliminating disruption of the sample. We show that measurements using this technique compare well with measurements obtained with a vane rheometer. A variation of the described method is proposed that would make it easier to measure time-dependent rheological properties.

Keywords: rheometer; rheology; auger; yield stress; lignocellulosic biomass

Publication Review Process: Formally Refereed

File size: 327 kb(s)

Date posted: 09/30/2014

This publication is also viewable on Treesearch:  view
RITS Product ID: 70006

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