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Publication Information

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Title: A novel rheometer design for yield stress fluids

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

Date: 2014

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

Publication Series: Scientific Journal (JRNL)

Description: 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

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Samaniuk, Joseph R.; Shay, Timothy W.; Root, Thatcher W.; Klingenberg, Daniel J.; Scott, C. Tim 2014. A novel rheometer design for yield stress fluids. AIChE Journal, April 2014. Volume 60, Number 4, 2014; pp. 1523-1528.

 


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