HOME > DATA > Character table：Nitride character table

Nitride character table

BACK
  TiN ZrN NbN TaN Cr2N VN
Nitrogen content[%] 22.63 13.31 13.1 7.19 11.87 21.56
Crystal structure Cubic Cubic Hexagonal Hexagonal Hexagonal Cubic
Lattice periods,kx. a 4.249 4.537 2.959 2.933 4.806 4.136
c     11.271 2.864 4.479  
c/a     3.804 0.98 0.928  
Density[g/cm3]
calculated		 5.44 7.35 8.305 14.36 6.51 6.102
experimental 5.43 7.09 8.40 13.80   6.04
Microhardness 100g
[kg/mm2]		 2050 1670 1461 1060 1571 1310
Melting Point[℃] 2950 2980 2300 3087 1650(分解） 2050
Heat of formation
ΔH°(298）[Kcal/mol]		 -80.4 -87.3 -56.8±1.5 -59.00 -25.2 -60.0
Entropy S°(298)
[Kcal/mol・℃]		 7.24±0.1 9.3±0.1 10.5±0.2 12.2±1.0 18.0±2.0 8.9±0.1
Specific electrical
resistance[μΩ cm] at
20℃		 40 18 54 198 84 60
Point of transition to
superconductivity °K		 5.6 9.8 <1.94 <4.2   8.2

(Reference) Hand book refractory compounds (metallurgiya in Moscow 1976 editions)

 

Metal nitride powders are important as materials that add functionality to other materials.
TiN greatly improves the characteristics of TiC based cermet cutting tools, and currently, most cermet cutting tools include N, and the applications for such tools are increasing rapidly.
Normally, TiC-TiN solid solution powders are used.
In addition, these also improve the characteristics of PM high-speed steel alloys. TiN is also used as a decorative alloy, such as gold colored hard case.
TiN and TaN are used as target materials for PVD coating, as additives to add electroconductivity and thermal conductivity to oxide and nitride ceramics, and as secondary ingredients in hard materials.

 

 

 

PAGE TOP