Practical Electron Microscopy and Database

Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix

Tungsten Nitride (WNx)

The chemical reaction of nitrogen with WSi2 may form tungsten nitride and/or silicon nitride. Table 2386 lists the properties of tungsten nitrides (β-WN and γ-WN). Table 2386. Properties of tungsten nitrides. β-WN γ-WN W2N Main X-ray diffraction lines 18.9°, 21.9° 10.78°, 15.41°, 24.73°, 27.25°, 31.87° Crystalline structure Simple hexagonal FCC Heat of formation of nitrides (ΔH, kJ/mol) 15-22