ACADSTAFF UGM

CREATION
Title : Magnetic Ceramic Materials From Iron Sand Of The South Coast Bantul Yogyakarta
Author :

TOTO RUSIANTO (1) Ir. M. Waziz Wildan, M.Sc., Ph.D., IPU (2) Prof. Dr. Kamsul Abraha (3) Dr. Ir. Kusmono, S.T., M.T., IPM., ASEAN Eng. (4)
Date : 16 2012
Keyword : magnet,magnetite,magnetic characterizatio,iron sand magnet,magnetite,magnetic characterizatio,iron sand
Abstract : Abstract: The magnetic material needs in Indonesia increased, with increasing developments in electronics industries. Most of the needs of magnetic materials in Indonesia are imported, while Indonesia has huge amount of iron sand as raw material of magnet. Raw magnetic ceramics material is ferro oxide, which is usually produced from the scale of hot rolling steel. In this research, the iron oxide as raw magnetic materials is developed from iron sand coastal of Southern Bantul Yogyakarta. The raw material was crushed by ball mill and separated by permanent magnet. The characterization of the material using x-ray Diffraction (XRD) showed the compositions of the mineral were magnetite (Fe3O4) and maghemite (γ-Fe2O3). The raw materials are then mixed with barium carbonate with a ratio of 6:1 weight fraction. The mixture was calcined at a temperature of 1000 °C for 1 hour in order to form barium hexaferrite powder as the raw materials of permanent magnet. The powder was uniaxial pressed with a pressure of 30 MPa. The green compact was sintered at various temperatures of 1000, 1100, 1200, 1300, and 1400 ºC for an hour. Characterization of magnetism was performance by using Vibrating Sample Magnetometer (VSM) to get hysteresis loop curves. The results of magnetism characterization showed saturation magnetization (Ms) and magnetization remanent (Mr) with a highest value of 20.92 emu/g and 7.20 emu/g respectively at sintering temperature of 1200 ºC. The value of coercive field (Hc) decreased with increasing sintering temperatures, which are 975 Oersted of the material sintered at 1000 ºC and 173 Oersted at sintering temperature of 1400 ºC. The highest value of BH max was 0,0605 MGOe which was obtained at sintering temperature of 1100 ºC. it is conducted that iron sand from South Coast of Bantul Yogyakarta has good prospect to be developed as raw material for magnetic ceramics. Key words: Magnet, Magnetite, Magnetic Characterization, Iron Sand
Group of Knowledge : Lain-Lain
Level : Nasional
Status :
Published
Document
No Title Document Type Action
1 2012_Prosiding SNTTM XII - Full Doc Artikel No MAT-030 - Magnetic ceramic - MWW .pdf
Document Type : [PAK] Full Dokumen
[PAK] Full Dokumen View
2 2012_sampul.pdf
Document Type : Seminar Sampul Prosiding
Seminar Sampul Prosiding View
3 2012_daftarisi.pdf
Document Type : Daftar Isi
Daftar Isi View
4 2012 Prosiding SNTTM XI Artikel No MAT-030 - Magnetic ceramic - MWW.pdf
Document Type : Artikel dan Sertifikat/Bukti Kehadiran/Pasport (jika tidak ada sertifikat)
Artikel dan Sertifikat/Bukti Kehadiran/Pasport (jika tidak ada sertifikat) View