shear dependent viscosity

https://doi.org/10.1351/goldbook.S05634
For systems showing non-Newtonian behaviour when measured in steady @[email protected], a @[email protected] \(\eta \) equal to \(\frac{\sigma}{D}\) at a given value of the @[email protected] \(D\), where \(\sigma \) is the stress; \(\eta _{0}\) is the limiting @[email protected] at zero @[email protected], and \(\eta _{\infty }\) the limiting @[email protected] at infinite @[email protected]; \(\text{[}\eta _{0}\text{]}\) is the limit of @[email protected] at zero shear.
Source:
PAC, 1979, 51, 1213. (Terminology and Symbols in Colloid and Surface Chemistry Part 1.13. Definitions, Terminology and Symbols for Rheological Properties) on page 1217 [Terms] [Paper]