Magnetic and electric behavior of NiFe2O4-PVDF nanocomposites

• Autorzy: Sen S. , Panda A. K. , Prasad K.
• Języki publikacji: EN

Abstrakty

EN

NiFe2O4-PVDF composites in different ratios (10 %, 30 % and 50 %) were prepared in two steps. Firstly, fine nanosized NiFe2O4 powder was synthesized using the precursor solution method. Then the composites were made by hot-press technique. The presence of both the phases (ceramic and polymer) was confirmed by XRD micrographs. The average particle size of the composites varied from 18-23 nm. SEM micrographs showed that the ferrite particles were embedded in the polymer matrix. The saturation magnetization and the remanence showed an increasing trend with the increase in ferrite content while the coercivity remained almost constant. Impedance plot showed the presence of a single semicircle, which indicates the presence of bulk effect. The composites exhibited non-Debye relaxation. The bulk conductivity followed the Arrhenius type of behavior. The conduction mechanism was explained by the Vervey-de-Boer mechanism.

Słowa kluczowe

EN

nanocomposites; magnetization; impedance; conduction; Vervey-de-Boer mechanism

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2012
• Tom: Vol. 30, No. 4
• Strony: 419--425
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Sen S.

autor

Panda A. K.

autor

Prasad K.

• MST Division, National Metallurgical Laboratory, Jamshedpur

Bibliografia

• [1] MATSUMOTO M., MIYATA Y., J. Appl. Phys., 91 (2002),9635.
• [2] SLAMA J., GRUSKOVA A., VICEN R., VICENOVA S.,DOSOUDIL R., FRANEK J., J. Magn. Magn. Mater., 254(2002), 642.
• [3] PANT R.P., RASHMI R., KRISHNA M., NEGI P.S., RAVAT K., DHAWAN K., GUPTA S.K., SURI D.K., J. Magn.Magn. Mater., 149 (1995), 10.
• [4] LINDLAR B., BOLDT M., EIDEN-ASSMANN S.,MARET G., Adv. Mater., 14 (2002), 1656.
• [5] BURKE N.A.D., STOVER H.D.H., DAWSON F.P.,LAVERS J.D., JAIN P.K., OKA H., IEEE Trans. Magn.,37 (2001), 2660.
• [6] MATSUNO R., YAMAMOTO K., OTSUKA H., TAKAHARA A., Chem. Mater., 5 (2003), 3.
• [7] DHAK D., PRAMANIK P., J. Am. Ceram. Soc., 89(3), (2006), 1014.
• [8] PARDOE H., CHUA-ANUSORN W., ST.PIERRE T.G., J. DOBSON, J. Magn. Magn. Mater., 225 (2001), 41.
• [9] GODOVKSY D.Y., VARFOLOMEEV A.V., EFREMOVA G.D., CHEREPANOV V.M., KAPUSTIN G.A., VOLKOV A.V., MOSVINA M.A., Adv. Meter. Opt. Electron., 9 (1997), 87.
• [10] HUO J., WEI M., Mat Lett., 63 (2009), 1183.
• [11] MUKHERJEE R., SAHU T., SEN S., SAHU P., Mat. Chem. Phys., 128 (2001), 765.
• [12] LOPEZ D., CENDOYA I., TORRES F., TEJADA J., MIJANGOS C., J. Appl. Polym. Sci., 82 (2001), 3215.
• [13] NATHAMI H., MISHRA R.D.K., Mat. Sci. Eng. B, 113 (2004), 228.
• [14] CAIZER C., STEFANESCU M., J. Phys. D, 35 (2002), 3035.
• [15] BERKOWITZ A.E., LAHUT J.A., JACOBS I.S., LEVINSON L.M., FORESTER D.W., Phys. Rev. Lett., 34 (1975),594.
• [16] PRASAD K., K.KUMARI LILY., CHANDRA K.P., YADAV K.L., SEN S., Appl. Phys. A, 88 (2007), 377.
• [17] J.R. MACDONALD (Ed), Impedance Spectroscopy Emphasizing Solid Materials and Systems (Wiley New York) 1987.
• [18] VAN UITERT L.G., J. Chem. Phys., 23 (1995), 1883.
• [19] RAO K.H., RAIJU S.B., AGARWAL K., MENDIRATTA R.G., J. Appl. Phys., 52 (1981), 1376.