Saran Pembuatan Magnet Permanen Barium Heksaferit Dengan Subsitusi Ion Mn Dan Ti Pada Ion Fe Sebagai Material Penyerap Gelombang Mikro

5.2 Saran

Untuk penelitian lebih lanjut dalam pembuatan magnet permanen BaFe 12- 2x Mn x Ti x O 19 disarankan: 1. Dalam pembuatan magnet permanen BaFe 12-2x Mn x Ti x O 19 sebaiknya perlu dicoba dengan menggunakan bahan proanalis sebagai material acuan atau pembanding dari hasil penelitian ini. 2. Preparasi bahan baku untuk pembuatan magnet permanen BaFe 12-2x Mn x Ti x O 19 untuk mendapatkan ukuran nanopartikel atau dengan variasi waktu milling maupun dengan cara kimia basah, perlu dicoba sebagai lanjutan penelitian ini. 3. Kajian lebih dalam terutama berkaitan dengan sifat elektrik dan magnetik lainnya yang belum diukur dalam penelitian ini perlu ditindak lanjuti, misalnya indeks bias material absorber, tangent loss, konduktivitas listrik dan lainnya. 4. Untuk penelitian selanjutnya perlu juga dilakukan pengamatan pengaruh subsitusi ion-ion lainnya terhadap ion Fe, sehingga dapat dilihat sensitivitas respon subsitusi bahan tersebut terhadap rentang daerah frekuensi mikrowave yang ditampilkan. Universitas Sumatera Utara DAFTAR PUSTAKA 1. Vlack, Lawrence H. Van., 2004, Elemen-elemen Ilmu dan Rekayasa Material, Diterjemahkan oleh Sriati Djaprie, Jakarta: Erlangga. 2. Priyono K dan Azwar Manaf, 2007, Subtitusi Mn Dan Ti Pada Struktur Fasa Magnetik Barium Heksaferit Melalui Teknik Pemaduan Mekanik Mechanical Alloying. Jurnal Sains Materi Indonesia, Edisi Khusus Oktober, hal 144-147, ISSN : 1411-1098, Akreditasi LIPI : 536D2007. 3. Microwaves Absorbing Materials Solutions. www.lairdtech.com, diakses 14 Mei 2013. 4. Microwaves Absorbing Material. www.frd.cn., Diakses 14 Mei 2013. 5. Spaldin, Nicola, 2011, Magnetic Materials Fundamentals And Aplications. Second edition, Cambridge: Cambridge University Press. 6. P. Sebayang, Muljadi, M.R.T. Siregar and T.B. Waluyo, 2011, Ferrite-based material as a permanent magnet for Components of Electrical Generators. Adv. Nat. Sci., Nanosci.Nanotech. No.1, Vol.2 2011 045016-20. 7. Gang Xue, Cairong Gong, Jinsheng Liang, and Guangchuan Liang, 2009, Facile synthesis and characterization of BaFe 12 O 19 nanoparticles with different morphologies, Journal of Dispersion Science and Technology, Vol. 30, pp. 231-236, 2009. 8. M. Ginting, Muljadi, P. Sebayang, 2006, Pembuatan Magnet Permanen Isotropik Berbasis Nd – Fe – B dan Karakterisasinya. Teknologi Indonesia 29 I 2006 : 27 – 30. 9. Achmad Maulana Soehada S. , Asep Yudi H., Nanang Sudradjat, Masno Ginting, 2013, Preparasi BaCO 3 dan Fe 2 O 3 sebagai bahan magnet keramik BaFe 12 O 19 dan karakterisasinya, Seminar dan Focus Group Discussion FGD Material Maju: Magnet dan Aplikasinya 2013, ISBN : 978-979- 8580-27-7, pp.88-98.

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SrO.6Fe 2 O 3 Menggunakan Program General Structure Analysis System dan Pengujian Sifat Magnet. Jurnal Sains Materi Indonesia,Vol. 12, No.3, Juni 2011, Hal.215-219, ISSN : 1411-1098. 11. Priyono., Yuli Astanto., Happy Traningsih., Ainie Khuriati R.S., 2004, Efek Aditive Al 2 O 3 terhadap Struktur dan Sifat Fisis Magnet Permanen BaO.6Fe 2 O 3 , Jurnal Berkala Fisika, Vol.7, No.2, April 2004, hal 69-73. Universitas Sumatera Utara 12. Angelo, P.C. and Subramanian, R. Powder Metallurgy: Science, Technology and Applications, Prentice Hall India, New Delhi, 2008.

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23. Perdamean Sebayang, Achmad Maulana Soehada S., Nasruddin M. Noor,

Krista S, 2013, Pemanfaatan Reject Product dari Industri Magnet untuk Bahan Sensor Flow Meter dan Kajian Sifat-Sifatnya, Seminar dan Focus Group Discussion FGD Material Maju: Magnet dan Aplikasinya 2013, ISBN : 978-979-8580-27-7, pp.69-79. 24. R. Nowosielski, R. Babilas, G. Dercz, L. Pajak, J. Wrona, 2007, Structure and Properties of Barium Ferrite Powders Prepared by Milling and Annealing. Archives of Materials Science and Engineering, Vol 28, Issue 12, p 735-742, Desember 2007. 25. Adiguzel, H.I., Aksan, M.A. and Yakinci, M.E., 2008, “A study on the thermoelectric power and thermal conductivity properties of the Y 1- x Nd x Ba 2 Cu 3 O 7- system”, Journal of Materials Processing and Technology, Vol. 207, pp. 258-264, 2008. 26. Alberto Ubaldini and Maria Maddalena Carnasciali, 2008, “Raman characterisation of powder of cubic RE 2 O 3 RE = Nd, Gd, Dy, Tm and Lu, Sc 2 O 3 and Y 2 O 3 ”, Journal of Alloys and Compounds, Vol. 454, pp. 374-378. 27. Basoglu, M., Öztürk, K., Celik, S., Grovenor, C.R.M. and Yanmaz, E., 2009, “Anomalous ferromagnetic behaviour of Y 2 O 3 and CuO nanoparticles in YBa 2 Cu 3 O y superconductor”, Journal of Physics: Conference Series, Vol. 153, pp. 012005 9 Pages, 2009. 28. El-Lawindy, A.M.Y., Mansour, S.A., Mohamed Hafiz, Hassan, H.H. and Ali, A.A., 2009, “Influence of the mole ratio, sintering condition and particle size on the magnetic properties of BaFe 12 O 19 synthesized by ceramic method”, International Journal of Applied Ceramic Technology, Vol. 2, pp. 1-6, 2009. 29. Indrani Coondoo, Neeraj Panwar, and Jha, A.K, 2011, Effect of sintering temperature on the structural, dielectric and ferroelectric properties of tungsten substituted SBT ceramics, Physica B, Vol. 406, pp. 374-381, 2011. 30. Kamala Bharathi, K., Arout Chelvane, J. and Markandeyulu, G., 2009, Magnetoelectric properties of Gd and Nd-doped nickel ferrite, Journal of Magnetism and Magnetic Materials, Vol. 321, pp. 3677-3680, 2009. 31. Rosler, S., Wartewig, P., and langbein, H., 2003, Syntesis and Characterizetion of hexagonal Ferrites BaFe 12-2x Zn x T x O 19 x2 by Thermal Decomposition of Freeze-Dried precursors.Crys. Rest.Techno.38, No.11,927-9342003DOI 10.1002crat. 2003 10. Universitas Sumatera Utara 32. Nita Dilawar, Shalini Mehrotra, Varandani, D., Kumaraswamy, B.V., Haldar, S.K. and Bandyopadhyay, A.K., 2008, “A Raman spectroscopic study of C- type rare earth sesquioxides”, Materials Characterization, Vol. 59, 462-467, 2008. 33. Novizal, Azwar Manaf, and Rahmad Doni, 2013, Crystallite size characterization and magnetism properties of composite BaFe 12 O 19 1-X - SrTiO 3 X , International on Theoretical and Applied Physics ICTAP 2012, AIP Conf. Proc. 1555, 36-39 2013; doi: 10.10631.4820988. 34. Rosika, K., and Arif Nugroho, .2005, Aplikasi XRF X-Ray Fluorescence Untuk Analisis Unsur dalam Bahan, Seminar nasional FMIPA Universitas Indonesia, Depok, 24-26 November. 35. Manigandan, A., Anbarasu, V. and Sivakumar, K., 2011, Electrical and magnetic properties of Nd 3+ -substituted GdBaSrCu 3 O 7 superconductor, Physica C, Vol. 471, pp. 163-168, 2011. 36. Moto, keba., Lia Setiarini., Zufar Abubakar. 2003. Analisis Komposisi Fasa Dengan Metode Rietveld dan Pengaruhnya terhadap kekerasan Nanokomposit Ti-Si-N. Makara, Teknologi, Vol.7 No.1, April 2003. 37. Ramajo L, Cristobal A, Botta PM, Reboredo MM, Castro MS., 2009, Dielectric and Magnetic Response of Fe 3 O 4 Epoxy Composites.. Composites A 2009;40:388-393.

38. Achmad Maulana Soehada, Nasruddin M.N, Kerista S, Candra K, P.

Sebayang . 2013, ” Complex Permittivity and Permeability of BaFe 12- 2x Mn x Ti x O 19 as Microwave Absorber Materials ”. Presented at Innovation Research For Science, Technology and Culture, PUSPIPTEK Serpong, 2013.

39. Achmad Maulana Soehada, Kerista S, Nasruddin MN, Candra K,

Perdamean Sebayang, 2013, Effects of Mn-Ti Ions Dopant and Sintering Temperature on Barium Hexaferrite Magnetic Phase, Presented at International Seminar on Magnetic Materials, Batam, 2013.

40. Nasruddin MN, Achmad MS, Candra K, Lukman FN, Perdamean

Sebayang,. 2013, “Influence of Sintering Temperature and Mn-Ti Doped BaFe 12 O 19 On The Microwave Absorbing Properties”. Presented at Innovation Research For Science, Technology and Culture, PUSPIPTEK Serpong, 2013. Universitas Sumatera Utara 41. Lisjak,D., V.B. Bregar, A., Znidarsic, M., Drofenik. 2006. Microwave Behavior of Ferrite Composites. Journal of Optoelectronics and Advanced Materials, Vol.8, No. 1, February 2006, pp.60-65. 42. Mallick, Kajjal K., Phillip Shepherd, Roger J. Green., 2007, Magnetic Properties of Cobalt Substituted M-type Barium Hexaferrite Prepared by Co-precipitation, Journal of Magnetism Material, 312 2007 418-429. 43. Tang,Xin., 2005. Influence of Synthesis Variasbles on The Phase Component and Magnetic Properties of.M-Ba-ferrite Powders Prepared Via Sugar-Nitrates Process. Journal of Material Science. ISSN 0022-2461. 44. Yong An,Sung., In Bo Shim., and Chui Sung Kim. 2002. Mossbauer and Magnetic Properties of Co-Ti Substituted Barium Hexaferrite Nanoparticles. Journal of Applied Physics. Vol. 91, No. 10. 45. Yue Liu, Michael G.B.Drew, Ying Liu, 2011, Preparation and magnetic properties of barium ferrites substituted with manganese, cobalt, and tin. Journal of Magnetism and Magnetic Materials, 323, 945 –953. 46. Khattiya Chalpat, Kari Sarvala, Jian Li and Gheorghe Sorin Paranoanu, 2009, “Wideband Reference-Plane Invariant Method for Measuring Electromagnetic Parameters of Materials”, Vol. 57, 2257-2267, 2009. 47. Abhishek Kumar, Vijaya Agarwala, and Dharmendra Singh, 2013, Effect of Particle Size of BaFe 12 O 19 on The Microwave Absorption Characteristics in X-Band, Progress In Electromagnetics Research M, Vol. 29, 223-236. 48. Hamid S.Al-Jumaili, Khalid T. Rasoul and Saeed N.Al-Rashed, 2007, The Effect of Mn and Ti Substituted Barium Ferrite on The Electromagnetic Microwave Absorber in The X-Band Range, J. of Al-Anbar University for Pure Science: Vol.1, No.2, 2007. 49. Praveen Singh, Babbar VK, Archana Radzan, Goel TC and Srivastava SL, .2004, “Magnetic, Dielectric and Microwave Absorption Studies of Ba-CoTi Hexaferrite- Epoxy Composites”. Vol. 42, 221-228, 2004. 50. Ahmad Anas Yusof, Wan Khairuddin Wan Ali, Tharek Abd Rahman and Farid Nasir Ani, 2005, “Microwave and Reflection Properties of Palm Shell Carbon- Polyester Conductive Composite Absorber”, Jurnal Teknologi, 42A Jun. 2005: 59-74 51. S.P. Gairola, Vivek Verma, A. Singh, L.P. Purohit, R.K. Kotnala, 2009, Modified composition of barium ferrite to act as a microwave absorber in X-band frequencies, Solid State Communications, doi:10.1016j.ssc.2009.10.011, pp. 01-05. Universitas Sumatera Utara 52. Priyono dan Azwar Manaf. 2011, Material Magnetik Barium Heksaferit Tipe-M Untuk Material Anti Radar Pada Frekuensi S-Band. Jurnal Sains Materi Indonesia. Vol 11, No. 2, Februari, Hal. 75-78, ISSN: 1411-1098. 53. Zhang Haijun, Liu Zhichao, Ma Chengliang, Yao Xi, Zhang Liangying, Wu Mingzhong, 2002, Complex permittivity, permeability, and microwave absorption of Zn and Ti substituted barium ferrite by citrate sol_ gel process, Materials Science and Engineering B96 2002 289_ 295 Universitas Sumatera Utara Lampiran 1. Porosity dari bahan magnet BaFe 12-2x Mn x Ti x O 19 Tabel L.1.1 Data porositas dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.1, 0.2, 0.3, 0.4, 0.5, dan 0.6 mol dengan suhu sintering 1000, 1050, 1100, 1150, 1200 dan 1250 o C yang ditahan selama 2 jam. Suhu o C Porosity x = 0.1 x = 0.2 x = 0.3 x = 0.4 x = 0.5 x = 0.6 1000 0.215 0.202 0.225 0.283 0.264 0.252 1050 0.176 0.183 0.169 0.271 0.205 0.172 1100 0.147 0.138 0.070 0.158 0.119 0.138 1150 0.120 0.097 0.122 0.169 0.208 0.199 1200 0.138 0.127 0.123 0.164 0.205 0.195 1250 0.159 0.127 0.126 0.169 0.217 0.190 Tabel L.1.2 Data pengukuran porosity dengan metoda Archimedes. Ion Mn-Ti mole Suhu Sintering o C M. sampel kering, Mk g

M. sampel dalam air,

Ma g M. sampel saturasi, Ms g Porositas, P 0,1 1000 9.473 7.479 10.02 0.215 1050 9.505 7.317 9.972 0.176 1100 9.451 7.072 9.86 0.147 1150 9.497 7.356 9.79 0.120 1200 9.553 7.512 9.88 0.138 1250 9.602 7.345 10.03 0.159 0,2 1000 9.636 7.412 10.20 0.202 1050 9.550 6.959 10.13 0.183 1100 9.569 7.491 9.90 0.138 1150 9.277 7.203 9.50 0.097 1200 9.651 7.463 9.97 0.127 1250 9.616 7.937 9.86 0.127 0,3 1000 9.593 7.503 10.20 0.225 1050 9.441 7.193 9.90 0.169 Universitas Sumatera Utara 1100 9.858 7.294 10.05 0.070 1150 9.660 7.351 9.98 0.122 1200 9.550 7.333 9.86 0.123 1250 9.650 7.985 9.89 0.126 0,4 1000 9.556 7.240 10.47 0.283 1050 11.159 8.628 12.10 0.271 1100 9.802 7.575 10.22 0.158 1150 9.573 6.974 10.10 0.169 1200 9.575 7.404 10.00 0.164 1250 9.366 7.327 9.78 0.169 0,5 1000 9.593 7.340 10.40 0.264 1050 9.292 6.630 9.98 0.205 1100 9.586 7.477 9.87 0.119 1150 9.355 7.313 9.89 0.208 1200 9.703 7.346 10.31 0.205 1250 9.685 7.282 10.35 0.217 0,6 1000 9.572 7.054 10.42 0.252 1050 9.434 6.862 9.97 0.172 1100 9.400 6.843 9.81 0.138 1150 9.547 7.033 10.17 0.199 1200 9.648 7.452 10.18 0.195 1250 9.610 7.904 10.01 0.190 Universitas Sumatera Utara Gambar L.1.1 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.1 mol. Gambar L.1.2 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.2 mol.

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,1 mole MnTi

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,2 mole MnTi Universitas Sumatera Utara

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,3 mole MnTi Gambar L.1.3 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.3 mol.

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,4 mole MnTi Gambar L.1.4 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.4 mol. Universitas Sumatera Utara

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,5 mole MnTi Gambar L.1.5 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.5 mol.

0.0 0.2

0.4 0.6

1000 1050 1100 1150 1200 1250 1300 P or os it a s Temperatur Sinter o C 0,6 mole MnTi Gambar L.1.6 Hubungan porositas terhadap suhu sintering dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.6 mol. Universitas Sumatera Utara Lampiran 2 Bulk density dari bahan magnet BaFe 12-2x Mn x Ti x O 19 Tabel L.2.1 Data bulk density dari bahan magnet BaFe 12-2x Mn x Ti x O 19 x = 0.1, 0.2, 0.3, 0.4, 0.5, dan 0.6 mol dengan suhu sintering 1000, 1050, 1100, 1150, 1200 dan 1250 o C yang ditahan selama 2 jam. Suhu o C Bulk density gcm 3 x = 0.1 x = 0.2 x = 0.3 x = 0.4 x = 0.5 x = 0.6 1000 3.208 3.545 3.751 3.548 3.678 3.483 1050 3.634 3.576 3.781 4.005 3.837 3.576 1100 3.674 4.005 4.014 4.180 4.137 3.617 1150 3.748 4.130 3.897 4.141 3.709 3.592 1200 3.697 4.074 3.808 4.122 3.519 3.644 1250 3.648 4.047 3.877 4.061 3.505 3.621 Tabel L.2.2 Data pengukuran bulk density dengan metoda Archimedes. Ion Mn-Ti mole Suhu sintering o C M. sampel kering, Mk g

M. sampel dalam air,

Ma g M. sampel saturasi, Ms g Bulk density, ρ gcm 3 0,1 1000 9.473 7.257 10.210 3.208 1050 9.505 7.314 9.930 3.634 1100 9.451 7.288 9.860 3.674 1150 9.497 7.256 9.790 3.748 1200 9.553 7.256 9.840 3.697 1250 9.602 7.498 10.130 3.648 0,2 1000 9.636 7.112 9.830 3.545 1050 9.550 7.459 10.130 3.576 1100 9.569 7.661 10.050 4.005 1150 9.277 7.254 9.500 4.130 1200 9.651 7.551 9.920 4.074 1250 9.616 7.534 9.910 4.047 0,3 1000 9.593 7.203 9.760 3.751 Universitas Sumatera Utara 1050 9.441 7.533 10.030 3.781 1100 9.858 7.594 10.050 4.014 1150 9.660 7.551 10.030 3.897 1200 9.550 7.372 9.880 3.808 1250 9.650 7.371 9.860 3.877 0,4 1000 9.556 7.377 10.070 3.548 1050 11.159 7.384 10.170 4.005 1100 9.802 7.875 10.220 4.180 1150 9.573 7.798 10.110 4.141 1200 9.575 7.607 9.930 4.122 1250 9.366 7.224 9.530 4.061 0,5 1000 9.593 7.322 9.930 3.678 1050 9.292 7.358 9.780 3.837 1100 9.586 7.553 9.870 4.137 1150 9.355 7.168 9.690 3.709 1200 9.703 7.843 10.600 3.519 1250 9.685 7.637 10.400 3.505 0,6 1000 9.572 7.272 10.020 3.483 1050 9.434 7.312 9.950 3.576 1100 9.400 7.211 9.810 3.617 1150 9.547 7.612 10.270 3.592 1200 9.648 7.632 10.280 3.644 1250 9.610 7.416 10.070 3.621 Universitas Sumatera Utara

3.0 3.5