Vol 7, No 3 (2016) > Metalurgy and Material Engineering >

Structure and Magnetic Properties of Ni-C Nanocomposite

Yunasfi Yunasfi, Wsinu Ari Adi

 

Abstract:

The synthesis and
characterization of nickel-graphite (Ni-C) nanocomposite materials by
mechanical milling method have been performed. This composite was prepared by mixing high purity nickel and graphite. The mixture was milled for 25, 50, and 75 hours and then was compacted at pressure of 5000 psi.
The samples consist of two phases, namely carbon and nickel phases. Carbon phase has hexagonal structure, space group: P 63 m c (186),
lattice parameters of    a = b
= 2.352(1) Å and c = 6.669(7) Å, α = β = 90o
and g = 120o,
V = 31.9(7) Å3 and  r =
5.585 gr.cm-3. Nickel phase has cubic structure, space group: F m
-3 m (225), lattice parameters of a = b = c = 3.5254(7) Å, α = β = g = 90o, V =
43.81(2) Å3 and  r = 8.898 gr.cm-3. The
calculation results show
that the crystallite size of the Ni-C75 sample was around 3.83 nm. The Ni-C75
sample is also suspected to have grown embryo of carbon nanotube (CNT) due to the presence of nickel. The hysteresis loop of the sample
consists of intrinsic
saturation Ms, remanence Mr, and coercivity Hc are 1.40 emu/gr, 0.28 emu/gr, and 128 Oe, respectively.
The value of MR is about 28% at 7.5 kOe magnetic field. The sample shows magnetoresistance behavior and the phenomenon of
sensor characteristics. We
concluded that this study has successfully made  Ni-C
nanocomposite and it is expected that the nano composite Ni-C is able to be
used for sensor
material application.

Keywords: Crystallite Size; Magnetic; Magnetoresistance; Nanocomposite; Ni-C

Full PDF Download

References


Abrasonis, G., Scheinost, A.C., Zhou, S., Torres, R., Gago, R., Jiménez, I., Kuepper, K., Potzger, K., Krause, M., Kolitsch, A., Möller, W., Bartkowski, S., Neumann, M., Gareev R.R., 2008. X-ray Spectroscopic and Magnetic Investigation of C:Ni Nanocomposite Films Grown by Ion Beam Cosputtering. J. Phys. Chem. C, Volume 112, pp. 12628–12637

Bhattacharyya,S., Henley, S.J., Lock, D., Blanchard, N.P., Silva, S.R.P., 2006. Semiconducting Phase of Amorphous Carbon-nickel Composite Films. Appl. Phy., Volume 89, pp. 1–3

Cernak, J., Helgesen, G., Hage, F.S., Kovac, J., 2014. Magnetoresistance of Composites based on Graphitic Discs and Cones. J. Phys. D: Appl. Phys., Volume 47, pp 2–17

Dillon, F.C., Bajpai, A., Koo´s, A., Downes, S., Aslam, Z., Grobert, N., 2012. Tuning the Magnetic Properties of Iron-filled Carbon Nanotubes. Carbon, Volume 50, pp. 3674–3681

Guler, O., Evin, E., 2012. Carbon Nanotube Formation by Short Time Ball Milling and Annealing of Graphite. J. Optoelectron. Adv. Mater., Rapid Commun., Volume 6, pp. 183–187

Huang, Z.P., Wang, D.Z., Wen, J.G., Sennett, M., Gibson, H., Ren, Z.F., 2002. Effect of Nickel, Iron and Cobalt on Growth of Aligned Carbon Nanotubes. Appl. Phys. A, Volume 74, pp. 387–391

Jia, B., Su, L., Han, G., Wang, G., Zhang, J., Wang, L., 2011. Adsorption Properties of Nickel-based Magnetic Activated Carbon Prepared by Pd-free Electroless Plating. BioResources, Volume 6, pp. 70–80

Mandal, G., Srinivas, V., Rao, V.V., 2013. Role of Particle Size on the Magnetoresistance of Nano-crystalline Graphite. Carbon, Volume 57, pp. 139–145

Sagar. R.U., Zhang. X., Xiong. C., Yu. Y., 2014. Semiconducting Amorphous Carbon Thin Films for Transparent Conducting Electrodes. Carbon, Volume 76, pp. 64–70

Schinteie, G., Kuncser, V., Palade, P., Dumitrache, F., Alexandrescu, R., Morjan, I., Filoti, G., 2013. Magnetic Properties of Iron–carbon Nanocomposites Obtained by Laser Pyrolysis in Specific Configurations. Journal of Alloys and Compounds, Volume 564, pp. 27–34

Toby, B.H., 2000. EXPGUI, a Graphical User Interface for GSAS. J. Applied Crystallography, Volume 34, pp. 210–213

Venkatesan, M., Dunne, P., Chen, Y.H., Zhang, H.Z., Coey, J.M.D., 2013 Structural and Magnetic Properties of Iron in Graphite. Carbon, Volume 56, pp. 279 –287

Xu, Y., Zhang, D., Cai, J., Yuan, L., Zhang, W., 2012. Effects of Multi-walled Carbon Nanotubes on the Electromagnetic Absorbing Characteristics of Composites Filled with Carbonyl Iron Particles. J. Mater. Sci. Technol., Volume 28, pp. 34–40

Yunasfi, 2013. Effects of Milling Time on Magnetic Properties of Ni-C Composites. Scientific Publication Journal of Instrumentasi, Volume 37, pp. 19–24

Zou, T., Li, H., Zhao, N., Shi, C., 2010. Electromagnetic and Microwave Absorbing Properties of Multi-walled Carbon Nanotubes Filled with Ni Nanowire. Journal of Alloys and Compounds, Volume 496, pp. 22–24