About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
D-15: Effects of Machining and Electroplating on Magnetic Properties of Small Sintered NdFeB Magnets |
Author(s) |
Min Zou, Jinghui Di, Abby Shen, Michelle Qian, Hui Meng, Qifeng Wei, Christina Chen |
On-Site Speaker (Planned) |
Min Zou |
Abstract Scope |
Sintered NdFeB magnets with one or more of their dimensions less than 5 mm or even 1 mm are now widely used when high performance, low cost, and limit in space and weight are simultaneously demanded, for example in mobile phones, tablets, and laptop computers. These small sized magnets are commonly machined from as-sintered blocks, and then coated with anti-corrosion materials by electroplating. Machining and surface treatment prior to electroplating potentially risk magnetic properties due to damaged surface grains and oxygen/humidity exposure. In this presentation, the effects of machining and electroplating conditions on the magnetic properties of several grades of NdFeB magnets with their dimensions ranging from a few millimeters to less than 1 mm will be illustrated. The approaches of mitigating the risk of the magnetic property degradation during machining and electroplating process will be discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, |