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Cylindrical Titanium Nitride Coating Neodymium Magnets N42 China Factory – Size: Dia 15mm * Length 85mm
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.
Now MPCO Magnetics can supply TiN coated Neodymium magnet rods, disks and blocks.
Medical industry is a relatively high-end application to the permanent magnets, especially in-body use. The FDA requires medical magnets must have approved biocompatible coating, such as parylene-coated magnets and Titanium Nitride coated magnets.
About Titanium Nitride Coating
As the fourth transition metal nitrides, Titanium Nitride had the characteristic of metallic crystal and covalent crystal combined rely on hybrid structure constituted of metallic bond and the covalent bond. Titanium Nitride coating has many merits, include high melting point and hardness, superior thermal properties, chemical inertness, conductivity and metallic reflectivity, therefore, Titanium Nitride coating can be served to different kinds of cutting tools and mechanical parts as hard wear-resistant film, and also can be applied to decoration industry as decorative film. Besides, Titanium Nitride thin film can be used as the conductive film and protective film of electrochromic device, or reflective film and antistatic film of display device. The optical properties of Titanium Nitride are very strange that has high reflectance in red waveband of the visible region, while has low reflectance near ultraviolet region and thus smoothly golden yellow in color which rival gold. Titanium Nitride Coated Magnets Rod Bar
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.
Titanium nitride (TiN) is the most common coating requested. This coating bonds molecularly with the metal surface to prevent blistering, flaking or chipping. The coating substantially reduces friction and increases material hardness for increased tool life.
TiN is rated 85 on the Rockwell C hardness scale, indicating that it is even harder than the carbide commonly used in metalworking tools.
typically extend tool life five to seven times
will not corrode
will not leave residue
are FDA-compliant for use in medical instruments
These magnets are cheaper, lighter, and stronger than samarium-cobalt magnets. However, neodymium magnets lose their magnetism at high temperatures. Samarium-cobalt magnets do not.
Neo Magnet Grades
Neodymium magnets are graded according to their magnetic strength. The higher the grade (number) the stronger the magnet. The letter or two letters that may follow the number indicate the Intrinsic Coercivity (Hci) of the material.
The higher the Hci, the higher the temperature the material can be exposed to before the magnet will start to show permanent losses in output. This is what links the letter or letters to a temperature rating.
It is not recommended to use the magnet without a protective layer. The application of the magnet will affect the choice of coating. For example gold plating is ideal for many medical applications, rubber coating provides additional friction, rubber coated zinc plating is used in marine environments, etc. AZ Industries is a bulk & wholesale supplier of all types of neodymium magnets.
Neodymium Magnet Coatings
Titanium Nitride (TiN)
PTFE (also known as “Teflon®”; white, black, gray, silvery)
Ni-Cu-Ni plus Epoxy
Ni-Cu-Ni plus Rubber
Zn plus Rubber
Ni-Cu-Ni plus Parylene C
Ni-Cu-Ni plus PTFE
Tin (Sn) plus Parylene C