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Rulon Bearings

Titanium Nitride (TiN) Coating
Categories: Ceramic; Nitride; Other Engineering Material; Ceramic/Metallic Coating

Material Notes: Thin film coating applied by environmentally safe, Physical Vapor Deposition (PVD) vacuum system. Can be applied to most metals to provide enhanced surface characteristics, and can also be applied to some ceramics and plastics. Has the appearance of gold, but is an ultra-hard material. Is harder than carbide and chrome, approximately 85 Rc. Is highly inert - Will not corrode and has excellent chemical resistance. Provides a non-stick surface. Prevents galling. Can withstand elevated temperatures. Is non-toxic - Used for surgical devices and food processing equipment. Is dense and non-porous. Is typically 3 micrometers or 0.0001" thick. Has a uniform thickness that follows the contour of the part's surface. Forms an outstanding bond to the base material that will not blister, flake or chip. Cutting tools typically last 3 to 10 times longer than uncoated tools.

Information provided by BryCoat Inc.

Key Words: Hard Ceramic Coatings for Molds & Aerospace
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Physical PropertiesMetricEnglishComments
Density 5.22 g/cc0.189 lb/in³
Open Porosity 0.00 %0.00 %
Thickness 3.00 microns0.118 miltypical
 0.250 - 12.0 microns0.00984 - 0.472 milrange
 
Mechanical PropertiesMetricEnglishComments
Knoop Microhardness 20002000kg/mm²
Hardness, Rockwell C 8585Approximate
Vickers Microhardness 23002300kg/mm²
Modulus of Elasticity 600 GPa87000 ksi
Poissons Ratio 0.250.25
Shear Modulus 240 GPa34800 ksiCalculated
Coefficient of Friction 0.650.65between 100 Cr6 ball and coating
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000250 ohm-cm0.0000250 ohm-cm
Band Gap 3.35 - 3.45 eV3.35 - 3.45 eV
 
Thermal PropertiesMetricEnglishComments
CTE, linear 9.40 µm/m-°C
@Temperature 20.0 °C
5.22 µin/in-°F
@Temperature 68.0 °F
Thermal Conductivity 19.0 W/m-K132 BTU-in/hr-ft²-°F
Melting Point 2950 °C5340 °F
Maximum Service Temperature, Air 600 °C1110 °FOxidation Begins
Heat of Formation 337 kJ/mol337 kJ/mol
 
Descriptive Properties
ColorGold
Crystal StructureFace-Centered Cubic

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