Hatschek equation

Quite a number of empirical equations describe the concentration dependence of the relative fluidity of dispersions (l/r)rei). Such equations are also to be found in a very early work by Hatschek [2], who related the fluidity to the cube root of the volume fraction of the disperse phase ... 

Equations, similar to Hatschek s empirical equation (11) can be found in calculations by Ishai and Cohen [54] or Narkis [55] for describing the dependence of relative modulus on concentration for disperse composites ... 

Hatschek 46) developed the following equation for concentrated emulsions ... 

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