Shear-thickening or dilatant fluid behaviour

The term dilatant has also been used for all other fluids which exhibit increasing apparent viscosity with increasing rate of shear. Many of these, such as starch pastes, are not true suspensions and show no dilation on shearing. The above explanation therefore is not applicable but nevertheless such materials are still commonly referred to as dilatant fluids. 

The limited information reported so far suggests that the appment viscosity-shear rate data often result in linear plots on double logarithmic coordinates over a limited shear rate range and the flow behaviom may be represented by the power-law model, equation (1.13), with the flow behaviom index, n, greater than one, i.e. 

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