TY - JOUR
T1 - The measurement and evaluation of the contact potential difference between various powders and a metal
AU - Masuda, Hiroaki
AU - Itakura, Takayuki
AU - Gotoh, Kuniaki
AU - Takahashi, Tohru
AU - Teshima, Takashi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1995
Y1 - 1995
N2 - Experimental and theoretical studies were conducted on the measurement and evaluation of the contact potential difference between various powders and a metal. The apparent dielectric constant of the powder layer that appeared in the theory was also measured and compared with some theoretical models. It was confirmed that the apparent contact potential difference of a polymer powder is proportional to the square of the powder layer thickness as theoretically predicted. The evaluation of the time change of the contact potential difference gives the relaxation characteristics of the initial charge of the powder layer. Also, it was found that the measuring time is drastically reduced by thinning the powder layer. The relationship between the packing fraction of the powder layer and the apparent dielectric constant was also found to be well represented by Maxwell's equation.
AB - Experimental and theoretical studies were conducted on the measurement and evaluation of the contact potential difference between various powders and a metal. The apparent dielectric constant of the powder layer that appeared in the theory was also measured and compared with some theoretical models. It was confirmed that the apparent contact potential difference of a polymer powder is proportional to the square of the powder layer thickness as theoretically predicted. The evaluation of the time change of the contact potential difference gives the relaxation characteristics of the initial charge of the powder layer. Also, it was found that the measuring time is drastically reduced by thinning the powder layer. The relationship between the packing fraction of the powder layer and the apparent dielectric constant was also found to be well represented by Maxwell's equation.
UR - http://www.scopus.com/inward/record.url?scp=77950338652&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950338652&partnerID=8YFLogxK
U2 - 10.1016/S0921-8831(08)60519-1
DO - 10.1016/S0921-8831(08)60519-1
M3 - Article
AN - SCOPUS:77950338652
SN - 0921-8831
VL - 6
SP - 295
EP - 303
JO - Advanced Powder Technology
JF - Advanced Powder Technology
IS - 4
ER -