Publications

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2004
MC, L., N. ER, N. RM, D. CJ, M. - M. JN, and D. - G. DK, "Space charge studies in LDPE using combined isothermal and non-isothermal current measurements", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, vol. 11: Univ Wales, Univ Nova Lisboa, pp. 25-34, Jan, 2004. Abstract
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2003
Lanca, M. C.;Dias,;D. C. J. Gupta, D. K.;Marat-Mendes, and J., Comparative study of dielectric relaxation spectra of electrically and thermally aged low density polyethylene, , pp. 161-164, Jan, 2003. Abstract
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2002
MC, L., N. ER, and M. - M. JN, "Combined isothermal and non-isothermal current measurements applied to space charge studies in low-density polyethylene", Journal of Physics D-Applied Physics, vol. 35, pp. L29-L32, Jan, 2002. Abstract
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MC, L., D. CJ, D. G. DK, and M. - M. S. J, "Dielectric properties of electrically aged low density polyethylene", Advanced Materials Forum I, vol. 230-2, no. 230-232, pp. 396-399, Jan, 2002. Abstract
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J, M., L. MC, and M. - M. S. J, "Infrared spectroscopy studies of aged polymeric insulators", Advanced Materials Forum I, vol. 230-2, pp. 384-387, Jan, 2002. Abstract
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2001
MC, L., M. - M. JN, and D. LA, "The fractal analysis of water trees - An estimate of the fractal dimension", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, vol. 8: Univ Nova Lisboa, Univ Leicester, pp. 838-844, Jan, 2001. Abstract
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2000
P, J., L. MC, M. - M. S. J, and R. J, "Pore dimension of water trees in PE: NMR studies", POLYMER, vol. 41: Univ Paris 11, Univ Nova Lisboa, Univ Paris 11, Univ Paris 11, pp. 8151-8154, Jan, 2000. Abstract
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Judeinstein, P., M. C. Lanca, J. Marat-Mendes, and J. Rault, "Pore dimension of water trees in PE: NMR studies", Polymer, vol. 41, no. 22, pp. 8151-8154, 2000. AbstractWebsite

In PE films aged under electric field the crystallisation of water (and melting of ice) has been studied by quadrupolar NMR, this technique allows one to determine the concentration of water as low as 10(-4). It is shown that the pore dimensions of the tracks forming the water trees of the order of 2.5 nm, are independent of the ageing time. The mobility of water in these water trees and in porous glass, of similar pore dimensions, are compared. (C) 2000 Elsevier Science Ltd. All rights reserved.

Judeinstein, P., M. C. Lanca, J. Marat-Mendes, and J. Rault, "Pore dimension of water trees in PE: NMR studies", Polymer, vol. 41, no. 22, pp. 8151-8154, 2000. AbstractWebsite

In PE films aged under electric field the crystallisation of water (and melting of ice) has been studied by quadrupolar NMR, this technique allows one to determine the concentration of water as low as 10(-4). It is shown that the pore dimensions of the tracks forming the water trees of the order of 2.5 nm, are independent of the ageing time. The mobility of water in these water trees and in porous glass, of similar pore dimensions, are compared. (C) 2000 Elsevier Science Ltd. All rights reserved.