PEMBUATAN SILICON RUBBER (SIR) – HYBRID BARIUM HEXAFFERITE (BaFe12O19) DAN NEODYMIUM IRON BORON (NdFeB) KOMPOSIT DAN KARAKTERISASINYA

KLARASATI, INES and Ramlan, Ramlan and Sardjono, Priyo (2018) PEMBUATAN SILICON RUBBER (SIR) – HYBRID BARIUM HEXAFFERITE (BaFe12O19) DAN NEODYMIUM IRON BORON (NdFeB) KOMPOSIT DAN KARAKTERISASINYA. Undergraduate thesis, Sriwijaya University.

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Abstract

A bonded magnet permanent has been made from mixed of BaFe and NdFeB powder with of silicon rubber (SIR). The weight percentage of magnetic powder variation was 95%BaFe and 5%NdFeB and also 90%BaFe and 10%NdFeB mixed with a percentage of SIR weight with the variation of 40%, 60%, and 80%.Characterization carried out includes analysis of physical properties that is bulk density, analysis of mechanical using tensile strength, measuring properties of magnetic using vibrating sample magnetometer (VSM), and analysis microstructure using X-Ray Diffraction (XRD). The composition of SIR affects the mechanical properties, physical properties, and magnetic properties. Samples with a variation of 40% SIR have the largest bulk density value, which is 1,928 g/cm3 for each powder variation used. Whereas in the variation of 80% SIR has the lowest bulk density value, that is 1.179 g/cm3 for powder variation of 95% BaFe and 5% NdFeB, and 1.625 g/cm3 for powder variation of 90% BaFe and 10% NdFeB. The results of measurements of mechanical properties indicate that the more percentage of SIR used the mechanical properties will increase, this can be seen from the ultimate tensile strength (UTS) value. Sample with 80% variation has the biggest UTS value, that is 0.162 N/cm2 for powder variation of 95% BaFe and 5% NdFeB and 0.169 N/cm2 for powder variation of 90% BaFe and 10% NdFeB. Meanwhile, at 40% of variation SIR has the lowest UTS value, that is 0.101 N/cm2 for powder variation of 95% BaFe and 5% NdFeB and 0.046 N/cm2 for powder variation of 90% BaFe and 10% NdFeB. Magnetic properties measurements show that more of the percentage of SIR is used, then the magnetic properties will tend to decrease.The highest magnetic properties owned by samples variation of silicon rubber with a concentration of 40%. For sample variation of 95% BaFe and 5% NdFeB has a saturation value of 0.91 kG and the remanence is 0.41 kG. While for sample variation of 90% BaFe and 10% NdFeB has a saturation value of 0.83 kG and the remanence is 0.41 kG. Meanwhile, the XRD results obtained, increasingly sharp peaks shown on the chart then particle size will be smaller, with an average particle size of 10.34nm for material variation of 95% BaFe and 5% NdFeB and 12.62nm for material variation of 90% BaFe and 10% NdFeB.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Silicon rubber, BaFe, NdFeB, elongasi, UTS
Subjects:	Q Science > QC Physics > QC1-999 Physics T Technology > TS Manufactures > TS1870-1935 Rubber industry
Divisions:	08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User:	Mrs Dies Meirita Sari
Date Deposited:	14 Aug 2019 05:45
Last Modified:	14 Aug 2019 05:45
URI:	http://repository.unsri.ac.id/id/eprint/4307

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