Measurement of Electrical Resistivity of Powder; Comparison of Three Methods

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2021 by IJETT Journal
Volume-69 Issue-8
Year of Publication : 2021
Authors : Adoum Traoré Ndama, Elysée Obame Ndong, Yves Constant Mombo Boussougou, Gaston N’Tchayi Mbourou


MLA Style: Adoum Traoré Ndama, Elysée Obame Ndong, Yves Constant Mombo Boussougou, Gaston N’Tchayi Mbourou  "Measurement of Electrical Resistivity of Powder; Comparison of Three Methods" International Journal of Engineering Trends and Technology 69.8(2021):41-48. 

APA Style: Adoum Traoré Ndama, Elysée Obame Ndong, Yves Constant Mombo Boussougou, Gaston N’Tchayi Mbourou. Measurement of Electrical Resistivity of Powder; Comparison of Three Methods  International Journal of Engineering Trends and Technology, 69(8),41-48.

The use of powder dielectric material in industrial applications is responsible for electrostatic charge accumulation, which can cause damages such as fires or explosions. In this paper, we present three different methods for the characterization of the resistivity of powders. The first method is based on Ohm's Law. The sample of powder to be tested is placed in a measuring cell between two electrodes subjected to high DC voltage. The second method is the AC resistivity measurement, which makes use of an LCR-meter, and the third method is the measurement of surface resistivity by the decay of charge over time. The results obtained show a match between these techniques as a function of the batches of powder and a considerable dispersion for some others. Indeed, the results obtained have shown that the AC method is better for size measurement of irregular glass beads and the DC method is adequate for size measurement of spherical glass beads. As for the results found by the charge decay method under the same conditions of temperature and relative humidity, they differ from others in 104 times more important. For charge decay measurement, it has been shown that the shape of the glass beads does not significantly influence the resistivity results.

[1] A. Iuga, S. Vlad, M. Mihailescu, and L. Dascalescu, A laboratory plate/screen–type electrostatic separator for granular mixtures design, engineering and applications, Particulate Science and Technology, 22 (3) (2004) 275–283.
[2] A. Younes, M. Younes, H. Sayah, A. Samuela, and L. Dascalescus, Experimental and numerical modeling of a new tribo-electrostatic separation process for granular plastics mixtures, Particulate Science and Technology, 33(2) (2014) 189–196.
[3] A Ohsawa., Computer simulation for assessment of electrostatic hazards in filling operations with powder, Powder Technol. 135– 136, 216–222 (2003).
[4] M. Nifuku and H. Katoh, A study on the static electrification of powder during pneumatique transportation and the ignition of the dust cloud, Powder Technol, (2003) 135–136, 234–242;
[5] H.T. Bi, Electrostatic phenomena in gas–solids fluidized beds, China Particuology, 3(6) (2005) 395–399.
[6] Y. Cheng, D. Y. J. Lau, G. Guan, C. Fushimi, A. Tsutsumi, and C. H. Wang, Experimental and numerical investigations on the electrostatic generations and transport in the downer reactor of a triple bed combined circulating fluidized bed, Industrial and Engineering Chemistry Research, 51(42) (2012) 14258–14267.
[7] F. Fotova, X. T. Bi, and J. R. Grace, Electrostatics in gas-solid fluidized beds, A Review of Chemical Engineering Science, 173 (2017) 303–334.
[8] J. Wu, H. T. Bi, Addition on fines for the reduction of powder charging particles mixers, Advanced Powder Technology, 22(3) (2011) 332–335.
[9] M. Murtomaa, J. Peltonen, and J. Salonen, One step–measurement of powder resistivity as a function of relative humidity and its effect on charging, Journal of Electrostatics, 76(2015) 78–82.
[10] J.N.Chubb, Comment on methods for charges decay measurement, Journal of Electrostatics, 62(1) (2004) 73–80.
[11] J. Sambles, and K. Elsom, The temperature-dependent of electrical resistivity of gold films, Solid State Communications, 52(4) (1984) 367–370.
[12] S.D. Pawar, P. Murugavel, and D. M. Lal, Effect of relative humidity and sea level pressure on the electrical conductivity of air over the Indian Ocean, Journal of Geophysical Research, 114(D2) (2009).
[13] A. Elajnaf, P. Carter, and G. Roley, Electrostatic characterization of inhaled powders; effect of the contact surface and relative humidity, European Journal Pharmaceutical Sciences, 29(2006) 375–384.
[14] G. Rowley., Mackin, L.A., The effect of moisture sorption on electrostatic charging of selected pharmaceutical excipient powders. Powder Technol, (2003) 135–136, 50–58.
[15] J. Guardiola, V. Rojo, and G. Ramos, Influence of particle size fluidization velocity and relative humidity on fluidized bed electrostatic, Journal of Electrostatics, 37 (1996) 1–20.
[16] J. E. Bauerle, Study of solids electrolyte polarization by a complex admittance method, Westinghouse Laboratories Research, Pittsburgh, pa. 15235, USA
[17] N. Guillet, Etude d’un capteur de gaz potentiométrique, influence et role des espèces oxygénées de surface sur la réponse électrique, Ecole Nationale Supérieure de Mines Saint – Etienne, Thèse, (2001).
[18] A. E. Seaver, Surface resistivity of uncoated insulators, Journal of Electrostatics, 63 (2005) 203–222.
[19] R. Sharma, A. S. Biris, R. A. Sims, and M. K. Mazumder, Effect of ambient relative humidity on charge decay properties of polymer powder and on the occurrence of back corona in powder coating, Conference Record of the IEEE Industry Applications Conference, 36th IAS Annual Meeting, 3 (2001) 1961–1965.
[20] L. P. Lefevre, G. Peizier, and Y. Deslandes, Resistivity of green powder compacts, Particulate, Powder Metallurgy, 44(3) (2001) 259– 266.
[21] G. Touchard, Technologie des pulvérulents dans les IAA., Collection Sciences et Techniques Agroalimentaires (2003).
[22] J. Yao, and C.–H. Wang, Granular size and shape effect on electrostatics in pneumatic conveying systems, Chemical Engineering Science, 61 (2006) 3858–3874.
[23] A. T. Ndama, P. Guignon, and K. Saleh, Reproducible test to characterize the triboelectric charging of powders during their pneumatic transport, Elsevier, Journal of Electrostatics, 69(3) (2011) 146–156.
[24] R Lalauze., Physico-chimie des interfaces solide-gaz 1 ; concept et méthologie pour l’étude des interactions solide-gaz, Lavoisier Paris,(2006).

electrical resistivity, powder dielectric material.