PREPARATION AND CHARACTERIZATION OF BaO.6Fe2O3 BONDED MAGNET WITH PARTICLE SIZE VARIATION
| Main Authors: | Sari, Ayu Yuswita; Pusat Penelitian Fisika (P2F) - LIPI Kawasan Puspiptek, Serpong 15314, Tangerang Selatan, Sebayang, Perdamean; Pusat Penelitian Fisika (P2F) - LIPI Kawasan Puspiptek, Serpong 15314, Tangerang Selatan, ., Muljadi; Pusat Penelitian Fisika (P2F) - LIPI Kawasan Puspiptek, Serpong 15314, Tangerang Selatan |
|---|---|
| Other Authors: | LIPI |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/882 |
Daftar Isi:
- Bonded magnets BaO.6Fe2O3 with various grain size i.e. 74, 105, 150, 300, 425, 600 and 850 μm have been synthesized. Composition of BaO.6Fe2O3 and epoxy was fixed i.e. 97 : 3 in weight percent. Turbidity and true density test associated its correlation by grain size. The result shows that turbidity SD BaO.6Fe2O3 and the square root of average particle diameter have linear relationship. True density value of BaO.6Fe2O3 around 5.2-5.6 g/cm3. This magnet powder molded cilindrical, magnetized, burned and then measured its physcal properties. Correlation between density and grain size is inversely proportional. The maximum density is 3.12 g/cm3 for BaO.6Fe2O3 until size 74 μm. At the same size have hardness brinell maximum 26 HB and inductance remance (Br) maximum 1.23 kG. The results of this study show that the smaller the particle size does not directly increase the magnetic field strength generated. This phenomenon needs to be seen again by linking themicro-structure correlation, homogeneity, and the improvement of the printing process with a strong magnetic field.Keywords: BaO.6Fe2O3, Turbidity, Density, Hardness brinell HB, Characteristic of magnet.