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Modification of the mesoscopic structure in neutron irradiated EPDM viewed through positron annihilation spectroscopy and dynamic mechanical analysis |
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| Authors: | O.A. Lambri,F. PlazaolaE. Axpe,R.R. MocelliniG.I. Zelada-Lambri,J.A. Garcí aC.L. Matteo,P.A. Sorichetti |
| Affiliation: | a Instituto de Física Rosario - CONICET, Avda. 27 de Febrero 210 bis, 2000 Rosario, Argentina b Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Universidad Nacional de Rosario, Laboratorio de Materiales, Escuela de Ingeniería Eléctrica, Avda. Pellegrini 250, 2000 Rosario, Argentina c Elektrizitatea eta Elektronika Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, P.K. 644, 48080 Bilbao, Spain d Departamento de Física Aplicada II, Facultad de Ciencias y Tecnología, Universidad del País Vasco, Apdo. 644, 48080 Bilbao, País Vasco, Spain e Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, Avda. Paseo Colón 850, 1063 Buenos Aires, Argentina |
| Abstract: | This article focuses on the study of the mesoscopic structure in neutron irradiated EPDM both from experimental and theoretical points of view. In this work we reveal completely the modification of the mesostructure of the EPDM due to neutron irradiation, resolving volume fraction, size and distribution of the crystalline zones as a function of the irradiation dose. Positron annihilation spectroscopy and dynamic mechanical analysis techniques are applied and the results are discussed by means of new theoretical results for describing the interaction process between the crystals and amorphous zones in EPDM. |
| Keywords: | Mechanical properties Dynamic mechanical analysis Positron annihilation spectroscopy Elasticity theory EPDM |
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