Zirconium nitride
Chemical compound
From Wikipedia, the free encyclopedia
Zirconium nitride (ZrN) is an inorganic compound used in a variety of ways due to its properties.
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| Names | |
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| IUPAC name
Zirconium nitride | |
| Other names
Zirconium(III) nitride, Nitridozirconium | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.042.864 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| ZrN[1] | |
| Appearance | Yellow-brown crystals |
| Odor | Odorless |
| Density | 7.09 g/cm3 (24 °C)[1] |
| Melting point | 2,952 °C (5,346 °F; 3,225 K) at 760 mmHg[1] |
| Insoluble | |
| Solubility | Soluble in concentrated HF, acids[1] |
| Structure | |
| Cubic, cF8[2] | |
| Fm3m, No. 225[2] | |
α = 90°, β = 90°, γ = 90° | |
| Octahedral[2] | |
| Thermochemistry | |
Heat capacity (C) |
40.442 J/(mol·K)[3] |
Std molar entropy (S⦵298) |
38.83 J/(mol·K)[3] |
Std enthalpy of formation (ΔfH⦵298) |
−365.26 kJ/mol[3] |
| Related compounds | |
Related refractory ceramic materials |
Tantalum carbide Niobium carbide Zirconium carbide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Properties
ZrN grown by physical vapor deposition (PVD) is a light gold color similar to elemental gold. ZrN has a room-temperature electrical resistivity of 12.0 μΩ·cm, a temperature coefficient of resistivity of 5.6·10−8 Ω·cm/K, a superconducting transition temperature of 10.4 K, and a relaxed lattice parameter of 0.4575 nm. The hardness of single-crystal ZrN is 22.7±1.7 GPa and elastic modulus is 450 GPa.[4]
Uses
Zirconium nitride is a hard ceramic material similar to titanium nitride and is a cement-like refractory material. Thus it is used in cermets and laboratory crucibles. When applied using the physical vapor deposition coating process it is commonly used for coating medical devices,[5] industrial parts (notably drill bits), automotive and aerospace components and other parts subject to high wear and corrosive environments.
Zirconium nitride was suggested as a hydrogen peroxide fuel tank liner for rockets and aircraft.[6]