A Brief Introduction to Temperature Compensated SmCo Magnets

High performance SmCo magnets, ultra-high temperature SmCo magnets, and temperature compensated SmCo magnets are three research hotspots in Samarium Cobalt SmCo magnets area. Temperature coefficient of remanence αBr of conventional SmCo magnets are already quite low in comparison with other commercially available permanent magnetic material, especially Neodymium magnets and ferrite magnets. But it still cannot […]

A Brief Introduction to Ultra-high Temperature SmCo Magnets

Research hotspot of Samarium Cobalt SmCo magnets include high performance SmCo magnets, temperature compensated SmCo magnets, and ultra-high temperature SmCo magnets. The primary difference between ultra-high temperature SmCo magnets and conventional Sm(Co, Cu, Fe, Zr)z magnets is the content of Samarium, Cobalt, and Iron. The αHcj value of conventional Sm(Co, Cu, Fe, Zr)z magnets are […]

A Brief Introduction to High Performance SmCo Magnets

Sm2Co17-based magnets are still playing an irreplaceable role in the permanent magnet industry due to its unique high temperature magnetic properties and superior magnetic stability, then it always serving to the high-speed motors, electronic communication, and aerospace. High energy product magnets are the important basis to accelerate miniaturization and high efficiency of the device. Thus, […]

A Brief Introduction to Radially Oriented NdFeB Ring Magnets

Many magnet users are tending to confuse radially magnetization with diametrical magnetization. As the name implies, the magnetization direction of radially magnetized ring magnets is along the radial vector. For sintered NdFeB magnets, radially magnetization is basing on radially orientation, but radially oriented NdFeB ring magnet is serving more as the basis to obtain multipole […]

A Brief Introduction to Grain Boundary Diffusion Process

The practicability of the permanent magnet can be judged by stability of remanence Br, intrinsic coercivity Hcj, and maximum energy products (BH)max under external condition. Magnet with higher Br can offer stronger magnetic field strength, then higher Hcj can serve much better anti-interference ability. The value of (BH)max represents permanent magnet’s ability to provide magnetostatic […]

A Brief Introduction to Magnetic Gun Mounts

Magnetic gun mounts, better known as gun magnets, are a kind of useful storage solution which can be served to mount weapon magnetically on every available hiding place, such as side panel of vehicle, bedside table, and safe box, then it allows users to keep weapon close during driving or sleeping, but still conveniently access […]

Magnetizing of Permanent Magnet

Permanent magnets will be magnetizing prior to use for their intended application in most cases. Permanent magnet will be magnetized when apply a magnetic field via its orientation direction and then achieved technical saturation with the increased external magnetic field. Different kind of permanent magnetic material needs different magnetic field to fulfill technical saturation. Remanence […]

Magnetic Moment of Permanent Magnet

Intrinsic magnetic properties of permanent magnet which including remanence Br, coercivity Hcb, intrinsic coercivity Hcj, and Max. Energy Products (BH)max, is mainly depending on its composition and microstructure, then nothing to do with shape and dimension. However, magnetic parameters which simultaneously affected by shape and dimension, including gauss value, magnetic flux or magnetic moment, are […]

Pull Force of Permanent Magnet

The initial and general knowledge of the permanent magnet in most people includes attractive or repulse force between the magnetic pole and the attractive force between magnetic field and ferromagnetic objects. Pull force also can be utilized as a comparative measurement method in some specified circumstances besides conventional surface gauss, magnetic flux, and magnetic moment. […]

Some Introduction about Surface Gauss

Comparative measurement method of permanent magnet includes surface gauss, magnetic flux, magnetic moment, and pull force. Surface gauss is referring to the magnetic field strength which measured at a certain point of magnet’s surface by Gaussmeter, and it is the most used comparative measurement method due to its economy, easy operation, and convenience. Influence Factors […]