15 x 10 x 5mm NdFeB Rectangular Magnet N40M Ni, Rare Earth Super Strong Sintered NdFeB Block Magnet for Motor Sensor Rotor Toy, Nickel Coating Licensed Neodymium Permanent Magnets China Supplier 15 x 10 x 5mm NdFeB Rectangular Magnet N40M Ni Technical Specifications: Item: NBN40M-15-10-5 Grade: N40M Material: Neodymium (NdFeB) Plating: Nickel Shape: Block, Rectangular, Rectangle, […]
Thin Titanium Nitride TiN Bio-Plating Neodymium Disc Magnet for FDA Medical, Medical Sintered NdFeB Disk Magnets, PVD COATED Rare Earth Neodymium Permanent Magnets, Titanium Nitride (TiN) Biocompatible Plating Strong Micro Disc Magnets China Manufacturer
Thin Titanium Nitride TiN Bio-Plating Neodymium Disc Magnet for FDA Medical N54 N52 China Factory – Size: Dia 3mm * Thickness 1mm
Neodymium Disc magnet are the strongest permanent magnet available. Rare Earth magnets come in many grades and are used in applications where a stronger magnetic field is required in a smaller area.
About Titanium Nitrate (TiN) Coating
Hard coating that has a very strong bond to the magnet
Resilient to most chemicals and environmentally friendly*
Protection from humidity and fluids*
Finished color is a metallic gold with a smooth surface
Thickness of: 2-3 microns
Max working Temp: Approximately 500o C
Our Small Disc Magnets are defined as a tiny neodymium magnet with a diameter between 0.0397″ (1.01mm) – 0.250″ (6.35mm). The size of the diameter of a disc magnet has a direct impact on the holding force, pull force, and magnetic field profile. Small disc magnets are predominately used as sensor magnets, medical device magnets, craft magnets, consumer electronics magnets, and holding applications.
Titanium Nitride coating is nonmetallic oxide ceramics material in golden yellow color. It is pretty hard with Young’s modulus between 350 and 600 GPa and so that has high wear resistance. TiN coated Neodymium magnet material has the property of corrosion resistance. More important, Titanium Nitride exhibits significantly lower bio reactivity than any other materials currently used as coating materials for Neodymium magnet products, such as Ni-Cu-Ni. TiN coated Neodymium magnets are used in orthopedic implants due to its high corrosion resistance and non-reactivity in human body.
Preparation methods of Titanium Nitride coating include chemical vapor deposition (CVD) technology and physical vapor deposition (PVD) technology, and MPCO team utilizes PVD technology to fabricate Titanium Nitride coated magnets. Small Sintered NdFeB Magnets with Titanium Nitride Coating
Sintered NdFeB magnets have poor corrosion resistance that renders them susceptible to corrosion in industrial and marine environments. This paper evaluates the properties of cathodic arc physical vapour deposited (CAPVD) titanium nitride coating for corrosion protection of sintered NdFeB permanent magnets. The performance of titanium nitride coating has been compared to the electrodeposited nickel–copper–nickel multilayer coating. The rates of coatings degradation in simulated marine environment were estimated with electrochemical impedance spectroscopy (EIS). Cyclic polarization was carried out to assess the pitting potential. The surface chemistry and coating morphologies were studied with scanning electron microscope (SEM). X‐ray diffraction (XRD) was used for qualitative phase analyses of coatings and the substrate. It was figured out that the charge transfer resistance of CAPVD titanium nitride coating increased with exposure time. The negative rate of Rp‐degradation for titanium nitride coating compared to the nickel–copper–nickel multilayer for equivalent exposure time is a unique and valuable result. Polarization results showed that ‘pits re‐passivation’ of titanium nitride coating could be responsible for the extended corrosion protection of the NdFeB substrate. The magnetic properties remained comparable for both types of coatings.
Neither titanium nor stainless steel can be electrodeposited, so electroplating would be out. It probably is possible to PVD (physical vapor deposition) coat the magnets with titanium nitride.
You apparently want to apply a thin coating as a sort of shrink-wrap to hold the magnet together, though — so you probably want a material which will do a good job of that. Nickel is often electrodeposited that way with great mechanical properties, for record and CD stampers, flexible bellows, screening, and radio telescopes for space. I don’t think a titanium nitride coating would match it. But if you need a coating stronger than nickel, so that your project advances the state of the art, a properly deposited nickel-cobalt alloy would probably have even better properties.