THE PHYSICAL PROPERTIES OF TRANSITION METAL NITRIDES

Journal Article · Sun Jan 21 04:00:00 EST 1962 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4796513

Samsonov, G V; Verkhoglyadova, T S

Values of the thermoelectric coefficient ( mu v/deg), the electrical resistance, the Hall coefficient, the thermal conductivity and microhardness are listed for TiN, ZrN, HfN/sub 0.86/, VN/sup 0.74/, VN/sub 0.93/, NbN/sub 0.5/, NbN, TaN/sub 0.5, TaN, CrN/sub 0.5/ CrN and MoN/sub 0.5/. The nitrides, in contrast to the metals which are hole conductors, show primarily electron conduction, as can be seen from the sign of the Hall coefficients. The thermoelectric coefficients of the nitrides except for MoN/sub 0.5./ are negative, and increase linearly with increasing acceptor properties of the incomplete 5d electron shell. There is a tendency to an increase in the negative thermoelectric coefficient with a decrease in nitrogen content in the V-N, Nb-N and Ta-N systems. The electrical resistance of the nitride decreases with increasing nitrogen content when the higher nitride is a metallic conductor, and increases when the higher nitride is a semiconductor as in the chrome--nitrogen system. The hardness of the mononitride is less than the hardness of the Me/sub 2/N compound. (TTT)

• Research Organization: Inst. of Metalloceramics and Special Alloys, Academy of Sciences Ukrainian SSR
• NSA Number: NSA-16-015209
• OSTI ID: 4796513
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 142
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ATOMIC MODELS
CHROMIUM NITRIDES
ELECTRIC CONDUCTIVITY
HAFNIUM NITRIDES
HALL EFFECT
HARDNESS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM NITRIDES
NIOBIUM NITRIDES
NITROGEN
SEMICONDUCTORS
TANTALUM NITRIDES
THERMAL CONDUCTIVITY
THERMOELECTRICITY
TITANIUM NITRIDES
VANADIUM NITRIDES
ZIRCONIUM NITRIDES