TY - GEN
T1 - Three-dimensional space charge distribution in glass fiber/epoxy composites
AU - Tanaka, Hidesato
AU - Fukunaga, Kaori
AU - Maeno, Takashi
AU - Ohki, Yoshimichi
PY - 2006/1/1
Y1 - 2006/1/1
N2 - By the conventional pulsed electroacoustic (PEA) method, only one-dimensional distribution of the average charge over a whole area parallel to the two electrodes can be observed. Therefore, we have developed a new PEA system capable of measuring three-dimensional space charge distribution. Using this system, we measured the charge distribution in glass/epoxy composites made of lattice woven glass fibers and epoxy resin. It has become clear that the space charge accumulation depends on the internal structure of the composite. There appear repetitious positions where a high charge density is observed on the same lateral cross section along the vertical direction in the composite. Such positions agree with the inter-sections of the glass fibers. These results clearly show that mismatch of the ratio of the conductivity and permittivity between the two composite materials is responsible for the observed space charge.
AB - By the conventional pulsed electroacoustic (PEA) method, only one-dimensional distribution of the average charge over a whole area parallel to the two electrodes can be observed. Therefore, we have developed a new PEA system capable of measuring three-dimensional space charge distribution. Using this system, we measured the charge distribution in glass/epoxy composites made of lattice woven glass fibers and epoxy resin. It has become clear that the space charge accumulation depends on the internal structure of the composite. There appear repetitious positions where a high charge density is observed on the same lateral cross section along the vertical direction in the composite. Such positions agree with the inter-sections of the glass fibers. These results clearly show that mismatch of the ratio of the conductivity and permittivity between the two composite materials is responsible for the observed space charge.
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U2 - 10.1109/ICPADM.2006.284119
DO - 10.1109/ICPADM.2006.284119
M3 - Conference contribution
AN - SCOPUS:43649099865
SN - 1424401895
SN - 9781424401895
T3 - Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
SP - 69
EP - 72
BT - Proceedings of ICPADM 2006 - 8th International Conference on Properties and Applications of Dielectric Materials
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - ICPADM 2006 - 8th International Conference on Properties and Applications of Dielectric Materials
Y2 - 26 June 2006 through 30 June 2006
ER -