Category Archives for "Knowledge Base"

Grain Boundary Diffusion- Conserving HREE in NdFeB Magnets

Grain Boundary Diffusion is an important new advance in Neodymium magnet production technology.    Heavy Rare Earth Elements (HREE) are delivered directly to critical areas of the magnet’s microstructure. These areas are where HREE are the most effective at increasing the properties of the magnet to withstand high opposing magnetic fields at high temperatures. HREE […]

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Magnetic Anisotropy

Magnetic Anisotropy is the capacity of a magnet to maximize its magnetic orientation in the direction of its poles, and it is similar to general anisotropy of other material characteristics.Strong permanent magnets – especially sintered Neodymium magnets- have had their magnetic domains oriented in the direction of the easy axis to maximize their strength. Anisotropy is […]

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Coercivity or Coercive Force

Coercivity is the resistance of a magnetic material to an opposing external magnetic field. There are two different kinds of Coercivity- Hcb and Hcj. The higher the Coercivity number, the higher the magnet’s resistance to the opposing field.Hcj vs HcbHcb is Normal Coercivity and Hcj is Intrinsic Coercivity.The Difference between Hcj and HcbHcb – is called […]

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Extract Rare Earth Elements from Acid Mine Drainage

West Virginia University researchers are opening a new facility to capture valuable materials from a novel source – acid mine drainage from coal mining – turning the unwanted waste into critical components used in today’s technology-driven society. rare earth elements from Acid mine drainage Through a collaborative research and development program with the National Energy Technology […]

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Neodymium vs Ferrite Magnets

A central question that comes up in a magnet trade study is how to decide whether to use a Neodymium magnet or a ferrite magnet for a particular application. A trade study that seems very simple at first glance can quickly become more complex once all the factors are considered. Neodymium vs ferrite magnets? Designers who […]

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How Are Neodymium Magnets Made?

Neodymium magnets are made by a sophisticated process that includes some very high-tech metallurgical methods comprising powder metallurgy and advanced process metallurgy.

Dozens of process steps must be followed very precisely to make Neodymium magnets –also known as NdFeB -for the chemical symbols of Neodymium, Iron and Boron.

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Apple’s Tim Cook Tells Why Use China Mfg Capabilities

Apple CEO Tim Cook continued his China tour on Wednesday with an appearance at the Fortune Global Forum. He  points out that It’s not so well known that China has become a world center of high-tech manufacturing, and Tim gives the Chinese educational system a lot of credit for that. They have created a class […]

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