ELECTRICAL PROPERTIES OF INTERSTITIAL NITRIDES

A discussion on the electrical properties of interstitial carbides and nitrides is given in Ch. 4, Sec. 3.0. The electrical properties of these materials are shown in Table 1 l,4.WO0][ii][i3] 

Compound Electrical Resistivity at 20°C (pn cm) Hall Constant at20 C lO cm /A-s Magnetic Susceptibility 10 emu/mol 

As shown in the above table, the interstitial nitrides arc relatively good electrical conductors although with a resistivity slightly higher than that of the corresponding carbides and the parent metals, but still reflecting the essentially metallic character of these compounds. The electrical resistivity of TiN (and presumably of the other interstitial nitrides) increases almost linearly with temperature as shown in Fig. 11.3.1  

Superconductivity. The interstitial nitrides are all good superconductors but their transition temperatures may be considerably affected by the presence of vacancies and impurities such as oxygen (see Secs. 6-11 for values), 

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