Split rheometer Couette attachment to enable sample extraction

We report on the development of a Couette attachment insert for a rheometer, which is designed to split in half, enabling intact sample extraction of cocoa butter crystallized from the melt under known dynamic stress conditions. This cell is capable of producing a sample 1 mm thick. At shear rates o...

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Bibliographic Details
Published in:Review of scientific instruments 2005-02, Vol.76 (2), p.026110-026110-3
Main Authors: Guthrie, Sarah E., Idziak, Stefan H. J.
Format: Article
Language:English
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Summary:We report on the development of a Couette attachment insert for a rheometer, which is designed to split in half, enabling intact sample extraction of cocoa butter crystallized from the melt under known dynamic stress conditions. This cell is capable of producing a sample 1 mm thick. At shear rates of 90 – 720 s − 1 and final temperatures of 18 – 20 ° C it was shown that the sample will completely separate from the cell surface intact.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1850635