Phase development in ballmilling of nanostructure permalloy
Nickel-iron (Ni-Fe) based alloys are commonly used for the application in soft magnetic materials displaying low coercivity (Hc) and high saturation magnetization (Ms). Magnetic nanoparticles have seen great potential in the electronics, magnetic data storage and biomedicine fields. Hence in this st...
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| Drugi avtorji: | |
| Format: | Final Year Project (FYP) |
| Jezik: | English |
| Izdano: |
2009
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| Teme: | |
| Online dostop: | http://hdl.handle.net/10356/15157 |
| _version_ | 1826117512220114944 |
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| author | Kasturi Nadasan Sankunathan. |
| author2 | Oh Joo Tien |
| author_facet | Oh Joo Tien Kasturi Nadasan Sankunathan. |
| author_sort | Kasturi Nadasan Sankunathan. |
| collection | NTU |
| description | Nickel-iron (Ni-Fe) based alloys are commonly used for the application in soft magnetic materials displaying low coercivity (Hc) and high saturation magnetization (Ms). Magnetic nanoparticles have seen great potential in the electronics, magnetic data storage and biomedicine fields. Hence in this study, the effects of synthesizing 77% wt. of Ni, 16% wt. of Fe, 5% wt. of Copper (Cu) and 2% wt. of Chromium (Cr) through mechanical alloying are analyzed for the structural and magnetic properties of this nanoparticle. Within the range of 0 h to 96 h of milling time, this sample was found to form the FCC γ-(Ni, Fe, Cu and Cr) phase after 6 h. As milling time was increased, the lattice parameter (a) increased and crystallite size (D) decreased. Also, the saturation magnetization, Ms was found to increase while Hc decreased with prolonged milling exhibiting the ideal characteristic of soft magnetic nanostructured particle. X-ray diffraction (XRD) technique, Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM) were used for this study. |
| first_indexed | 2024-10-01T04:28:49Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/15157 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:28:49Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/151572023-03-04T15:30:40Z Phase development in ballmilling of nanostructure permalloy Kasturi Nadasan Sankunathan. Oh Joo Tien School of Materials Science and Engineering DRNTU::Engineering::Materials Nickel-iron (Ni-Fe) based alloys are commonly used for the application in soft magnetic materials displaying low coercivity (Hc) and high saturation magnetization (Ms). Magnetic nanoparticles have seen great potential in the electronics, magnetic data storage and biomedicine fields. Hence in this study, the effects of synthesizing 77% wt. of Ni, 16% wt. of Fe, 5% wt. of Copper (Cu) and 2% wt. of Chromium (Cr) through mechanical alloying are analyzed for the structural and magnetic properties of this nanoparticle. Within the range of 0 h to 96 h of milling time, this sample was found to form the FCC γ-(Ni, Fe, Cu and Cr) phase after 6 h. As milling time was increased, the lattice parameter (a) increased and crystallite size (D) decreased. Also, the saturation magnetization, Ms was found to increase while Hc decreased with prolonged milling exhibiting the ideal characteristic of soft magnetic nanostructured particle. X-ray diffraction (XRD) technique, Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM) were used for this study. Bachelor of Engineering (Materials Engineering) 2009-04-07T01:53:44Z 2009-04-07T01:53:44Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15157 en Nanyang Technological University 52 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials Kasturi Nadasan Sankunathan. Phase development in ballmilling of nanostructure permalloy |
| title | Phase development in ballmilling of nanostructure permalloy |
| title_full | Phase development in ballmilling of nanostructure permalloy |
| title_fullStr | Phase development in ballmilling of nanostructure permalloy |
| title_full_unstemmed | Phase development in ballmilling of nanostructure permalloy |
| title_short | Phase development in ballmilling of nanostructure permalloy |
| title_sort | phase development in ballmilling of nanostructure permalloy |
| topic | DRNTU::Engineering::Materials |
| url | http://hdl.handle.net/10356/15157 |
| work_keys_str_mv | AT kasturinadasansankunathan phasedevelopmentinballmillingofnanostructurepermalloy |