Metalurgi
Vol 30, No 1 (2015): Metalurgi Vol.30 No.1 APRIL 2015

ANALISIS SIFAT LISTRIK NANOKOMPOSIT Fe0,5-C0,5 [Analysis Of Electrical Properties Of Fe0.5-C0.5 Nanocomposite]

Yunafsi, Yunafsi (Unknown)



Article Info

Publish Date
27 Apr 2016

Abstract

Telah dilakukan analisis sifat listrik nanokomposit Fe0,5-C0,5. Penelitian ini dilakukan untuk mendapat bahan nanokomposit berbasis karbon yang memiliki sifat listrik lebih tinggi, dalam rangka pengaplikasiannya di bidang elektronik. Nanokomposit Fe0,5-C0,5 dibuat dari campuran serbuk Fe dan serbuk grafit dengan perbandingan berat 1 : 1, kemudian dilakukan proses milling selama 50 jam. Hasil identifikasi pola difraksi sinar-X (X-Ray Diffraction, XRD) menunjukkan bahwa proses milling selama 50 jam terdapat puncak intensitas difraksi yang didominasi oleh fasa C(002) dan Fe(101), dan analisis data XRD menunjukkan ukuran butiran serbuk C sekitar 8 nm dan Fe sekitar 16 nm. Morfologi permukaan yang diukur dengan SEM menunjukkan bahwa ukuran serbuk Fe-C sebelum proses milling>10 µm, dan setelah proses milling selama 50 jam menunjukkan ukuran sekitar 50 nm.Hasil analisis ukuran partikel dan luas permukaan nanokomposit Fe0,5-C0,5  masing-masing adalah 50 nm dan 705 m2/g.  Dengan demikian, proses milling selama 50 jam terhadap campuran komposit Fe0,5-C0,5 dapat menghasilkan nanokomposit Fe0,5-C0,5. Sifat listrik nanokomposit Fe0,5-C0,5 yang diukur dengan alat LCR (Inductance : L, Capacitance : C, and Resistance : R)  meter  menunjukkan  nilai  konduktivitas 2,56  S/cm  dan  kapasitansi  0,15  µF  pada  frekuensi  100  kHz. Nanokomposit Fe-C menunjukkan sifat listrik lebih tinggi bila dibanding dengan komposit Fe-C berukuran mikro. AbstractAnalysis of electrical properties of Fe0.5-C0.5 nanocomposite has been carried out. This study was conductedto obtain carbon-based composite material that has higher electrical properties in the framework of itsapplication in electronics field. Fe0.5-C0.5 nanocomposite was prepared from a mixture of Fe powder andgraphite powder with weight ratio of 1: 1. Then it milled for 50 hours. Identification of X-ray diffraction(XRD) pattern showed that during such 50-hours milling process, the intensity of the diffraction peaks wasdominated by phase C (002) and Fe (101). The results of XRD data analysis showed the grain size of powderof about 25 nm and 36 nm for C and Fe, respectively. Surface morphology measured by SEM showed thatthe size of the Fe-C powder before milling process >10 μm, and after milled for 50 hours showed a size ofabout 50 nm.The analysis results of particle size and surface area of Fe0.5-C0.5 nanocomposite obtained, i.e.50 nm and 705m2/g, respectively.Thus, the process of milling for 50 hours against a mixture of Fe0.5-C0.5composite can produce Fe0.5-C0.5 nanocomposite. Electrical properties of nanocomposite Fe0.5-C0.5 measuredby a LCR (Inductance : L, Capacitance : C, and Resistance : R) meter showed the value of conductivity of2.56 S / cm and capacitance of 0.15 μF at frequency of 100 kHz. Fe0.5-C0.5 nanocomposite shows the higherthe electric properties when compared with the Fe-C micro-sized composite.

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Journal Info

Abbrev

metalurgi

Publisher

Subject

Energy

Description

METALURGI published by Research Center for Metallurgy and Materials LIPI. The objective of this journal is the online media for disseminating of RCMM results in Research and Development and also as a media for a scientist and researcher in the field of Metallurgy and ...