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Effect of ion beam irradiation on metal particle doped polymer composites

Content Provider	Springer Nature Link
Author	SINGH, N L SHAH, SEJAL QURESHI, ANJUM AVASTHI, D K RAOLE, P M
Copyright Year	2011
Abstract	Polymethyl methacrylate (PMMA) was prepared by solution polymerization method. Different concentrations (10, 20 and 40%) of Ni powder were dispersed in PMMA and the composite films were prepared by casting method. These films were irradiated with 120 MeV Ni$^{10 + }$ ions at a fluence of 5 × 10$^{12}$ ions/cm$^{2}$. Electrical, structural and chemical properties of the composites were studied by means of an LCR meter, X-ray diffraction, FTIR spectroscopy and SEM/AFM, respectively. The results showed that the conductivity increases with metal concentration and also with ion beam irradiation. This reveals that ion beam irradiation promotes the metal/polymer bonding and converts polymeric structure into hydrogen depleted carbon network. It was observed from XRD analysis that percentage crystallinity and crystalline size decrease upon irradiation. This might be attributed to rupture of some polymeric bonds, which is also corroborated with FTIR spectroscopic analysis. Ion beam tempts graphitization of polymeric material by emission of hydrogen and/or other volatile gases. Surface morphology of the pristine and irradiated films was studied by atomic force microscopy (AFM)/scanning electron microscopy (SEM). Result showed that the surface roughness increases after ion beam irradiation.
Starting Page	81
Ending Page	88
Page Count	8
File Format	PDF
ISSN	02504707
Journal	Bulletin of Materials Science
Volume Number	34
Issue Number	1
e-ISSN	09737669
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-05-21
Publisher Institution	Indian Academy of Sciences
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Composite materials; ion beam irradiation; dielectric properties; X-ray diffraction. Materials Science Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science

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