Making And Characterization Of Permanent Magnetic Barium Ferrite (BAFE12O19) With Variations In The Composition Of Epoxy Resin Adhesive.
Introduction
Barium Ferrite, or Bafe12O19, is a widely used material for making permanent magnets. Recent research has been conducted to produce barium ferrite-based permanent magnets with variations in the composition of epoxy resin adhesive. This study aims to investigate the effects of different concentrations of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets.
Background
Barium Ferrite is a ferrimagnetic material that is widely used in various applications, including permanent magnets, magnetic recording media, and magnetic resonance imaging (MRI) devices. The production of barium ferrite-based permanent magnets involves mixing barium ferrite powder with epoxy resin, which serves as a binder to hold the powder together. The resulting mixture is then printed into a pellet shape and dried to remove any excess solvent.
Methodology
In this study, four different concentrations of epoxy resin were used: 3%, 5%, 7%, and 10%. The barium ferrite powder was mixed with epoxy resin and then printed into a pellet shape using an 8-ton force. The pellets were then dried using an Under Vacuum Dryer at 80°C and a pressure of 15 mbar for one hour. The physical and magnetic properties of the pellets were then characterized using various techniques, including measurement of bulk density, magnetic properties using vibrating sample magnetometer (VSM), and measurement of magnetic field strength using gauss meters.
Results
The results of physical characterization showed that the highest bulk density was obtained in the addition of 10 WT% epoxy resin, with a value of 3.33 gr/cm³. Meanwhile, the characterization of magnetic properties showed that the strength of the best magnetic field was found in the addition of 3 WT% epoxy resin, which reached 325 Gauss. From the analysis of the hysteresis curve, the optimum condition for the manufacture of barium ferrite was identified in the addition of 10 wt% epoxy resin, with magnetic characteristics as follows:
- Magnetic remanence induction (BR) of 1.149 kg
- Coercivity (HCJ) of 1,716 KOE
- Maximum production energy (BH) of 0.356 mgoe
Discussion
The results of this study show that the addition of epoxy resin plays an important role in improving the physical and magnetic properties of barium ferrite-based permanent magnets. The highest bulk density was obtained in the addition of 10 WT% epoxy resin, indicating that the epoxy resin acts as a binder to increase the integrity of the pellet structure. However, the addition of epoxy resin up to 10 WT% was found to decrease the magnetic efficiency, suggesting that the optimal concentration of epoxy resin is between 3 WT% and 5 WT%.
Conclusion
This study provides valuable insights into the effects of different concentrations of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets. The results show that the addition of epoxy resin can improve the bulk density and magnetic field strength of the magnets, but excessive addition of epoxy resin can decrease the magnetic efficiency. Therefore, this study suggests that the optimal concentration of epoxy resin is between 3 WT% and 5 WT% for the production of barium ferrite-based permanent magnets.
Future Work
Future research can focus on practical applications of the magnets developed in this study, as well as further exploration of the possibility of using alternative binding materials that can produce better magnetic performance. Additionally, the effects of different types of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets can be investigated.
Significance
This study contributes to the development of magnetic materials that are more efficient and environmentally friendly. The results of this study can be used to optimize the composition of barium ferrite-based permanent magnets for various industrial applications, including electronics and automotive.
Limitations
This study has several limitations, including the use of a limited number of concentrations of epoxy resin and the lack of investigation into the effects of different types of epoxy resin. Future research can address these limitations by investigating a wider range of concentrations and types of epoxy resin.
Recommendations
Based on the results of this study, it is recommended that the concentration of epoxy resin be optimized between 3 WT% and 5 WT% for the production of barium ferrite-based permanent magnets. Additionally, further research is needed to investigate the effects of different types of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets.
Conclusion
In conclusion, this study provides valuable insights into the effects of different concentrations of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets. The results show that the addition of epoxy resin can improve the bulk density and magnetic field strength of the magnets, but excessive addition of epoxy resin can decrease the magnetic efficiency. Therefore, this study suggests that the optimal concentration of epoxy resin is between 3 WT% and 5 WT% for the production of barium ferrite-based permanent magnets.
Introduction
In our previous article, we discussed the making and characterization of permanent magnetic barium ferrite (Bafe12O19) with variations in the composition of epoxy resin adhesive. This Q&A article aims to provide further clarification and insights into the research findings.
Q: What is barium ferrite, and why is it used in permanent magnets?
A: Barium ferrite, or Bafe12O19, is a ferrimagnetic material that is widely used in various applications, including permanent magnets, magnetic recording media, and magnetic resonance imaging (MRI) devices. It is used in permanent magnets due to its high magnetic coercivity, which allows it to retain its magnetic field even in the presence of external magnetic fields.
Q: What is the role of epoxy resin in the production of barium ferrite-based permanent magnets?
A: Epoxy resin serves as a binder to hold the barium ferrite powder together, forming a pellet shape. The addition of epoxy resin can improve the physical and magnetic properties of the magnets, including bulk density and magnetic field strength.
Q: What are the effects of different concentrations of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets?
A: The results of this study show that the addition of epoxy resin can improve the bulk density and magnetic field strength of the magnets, but excessive addition of epoxy resin can decrease the magnetic efficiency. The optimal concentration of epoxy resin is between 3 WT% and 5 WT% for the production of barium ferrite-based permanent magnets.
Q: What are the limitations of this study, and what future research directions are recommended?
A: This study has several limitations, including the use of a limited number of concentrations of epoxy resin and the lack of investigation into the effects of different types of epoxy resin. Future research can address these limitations by investigating a wider range of concentrations and types of epoxy resin.
Q: What are the practical applications of the magnets developed in this study?
A: The results of this study can be used to optimize the composition of barium ferrite-based permanent magnets for various industrial applications, including electronics and automotive.
Q: Can you explain the significance of this study in the development of magnetic materials?
A: This study contributes to the development of magnetic materials that are more efficient and environmentally friendly. The results of this study can be used to optimize the composition of barium ferrite-based permanent magnets for various industrial applications.
Q: What are the potential risks or challenges associated with the use of barium ferrite-based permanent magnets?
A: The use of barium ferrite-based permanent magnets may pose risks or challenges associated with the handling and disposal of the magnets, as well as potential environmental impacts.
Q: Can you provide any recommendations for future research in this area?
A: Based on the results of this study, it is recommended that the concentration of epoxy resin be optimized between 3 WT% and 5 WT% for the production of barium ferrite-based permanent magnets. Additionally, further research is needed to investigate the effects of different types of epoxy resin on the physical and magnetic properties of barium ferrite-based permanent magnets.
Conclusion
In conclusion, this Q&A article provides further clarification and insights into the research findings on the making and characterization of permanent magnetic barium ferrite (Bafe12O19) with variations in the composition of epoxy resin adhesive. The results of this study can be used to optimize the composition of barium ferrite-based permanent magnets for various industrial applications, including electronics and automotive.