just name it, a little elaboration will be appreciated... I need to write proposal and suggest equipments.... thank you!

Are you writing a Doctoral Research Proposal?

Well, you find the experimental assembly for measuring the electrical conductivity of powdery substance is schematically illustrated in the figure below. Because the electrical conductivity is the reciprocal of electrical resistivity, you can measure the electrical resistance of the powdery substance using a Kelvin bridge with a measurement range of 0.01 μΩ to 1000 Ω. Then, from the measured electrical resistance {R}, the electrical conductivity {σ} of the powdery substance can be determined using the following formula [1]:

σ = H / (R*S)

where H is the height of the powder column, and S is its cross section.



A similar setup can be found in one of the projects, “Measurement of powder conductivity” by Dr. W. Jenschke, V. Körber, E. Stündel, and Dr. J. Pionteck, at Leibniz Institute of Polymer Research Dresden, Germany. You will find a good technical data reference where the researchers has also listed some equipment and instruments used in the project.



REFERENCES ::
[1] J. M. Montes, F. G. Cuevas, J. Cintas, and P. Urban, in: “Electrical conductivity of metal powders under pressure,” in Applied Physics A, Vol. 105, Issue 4, Springer-Verlag, Berlin Heidelberg 2011, pp 935-947.