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They enable technical applications to be realised which would have been unthinkable just a few years ago.
Nd2Fe14B sintered magnets are produced using compression, followed by metal powder sintering.
This makes them up to 10 times stronger than traditional metal magnets, and they are recommended for applications in operating temperatures of between 80 and 220 degrees Celsius.
The presence of iron can lead to corrosion of this material, and it is therefore not recommended for use in untreated condition in a hostile or humid environment.
To overcome this problem, Neodymium magnets are normally protected by an anti-corrosive coating of Nickel or/and Copper, Tin, Zinc, epoxy resin.
The articles made of Neodymium, Iron and Boron are the company’s flagship products.
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Physical properties of the material
|
|
|
Curie temperature (°C) |
310 – 370 |
|
Max. operational temperature (°C) |
80 – 220 |
|
Electrical resistivity (10
-6
Ω
m) |
1.6 |
|
Hardness (Hv) |
560 – 580 |
|
Density (g/cm^3
) |
7.5 |
|
Relative permeability (
µ
rec) |
1.05 – 1.10 |
|
Br temperature coefficient (%/°C) |
-0.12 – -0.10 |
|
Saturation field (kA/m) |
>2800 |
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