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Nitrides, which are binary nitrogen compounds containing fewer electronegative components, are also known as metallic nitrides. The nitrides produced by the direct combination between transition elements and Nitrogen are also known as metallic nitrides. The “mesenchymal compound” name is due to the fact that nitrogen atoms fill interstitial spaces in metal crystal structures. These compounds are similar in appearance, hardness and electrical conductivity to metals. They are usually hard, have high melting points, are chemically durable, and are electrically conductive. Nitrogen compounds like titanium, vanadium and zirconium are hard and refractory. They also have some special features, including chemical corrosion resistance and heat resistance. TiN has a melting temperature of 2 930 to 2 950°C, making it an excellent conductor of electricity and heat. Superconductivity is achieved at low temperatures, and it’s used to make jet engines. ZrN, which is superconducting in low temperatures, is used now as a reactor.
Nitrogen is highly corrosive and forms a series nitrides that include ionic and covalent nitrides as well as metallic nitrides.
The nitrides that are formed from alkali metals and alkaline Earth metals belong to the ionic group, which is characterized by crystals dominated by ionic interactions. Nitrogen elements are found in N3- which is also called saltlike nitrides. Li3N, at the moment, is all that’s used to make ionic nitrides. Li3N, a dark red solid with a hexagonal crystalline system and a melting temp of 813degC, is a dense solid. Simple synthesis with high ionic conducting properties. It is a solid lithium electrode that can be used in combination with either liquid or solid.
These nitrides consist of a majority of covalent bonds. Compounds containing oxygen, VIIA-group elements and nitrogen should be called nitrogen oxides, or nitrogen halos. Covalent nitrides mainly consist of elements from group IIIa and the IVA (such as AlN, GaN and InN), C3N4 or Si3N4. Diamond nitride is so called because its structural unit is the same as a tetrahedron. High melting point and high hardness. Good chemical stability. They are mostly semiconductors or insulators. They are widely used in cutting instruments, high-temperature materials, microelectronics devices, luminous material and other fields.
These metallic nitrides are filled nitrides. Nitrides made by transition metal elements have nitrogen atoms located between hexagonal or cubic metal lattices. The chemical formulas of these nitrides are not strictly stoichiometric and their compositions can vary within certain limitations. Most metal nitrides have a chemical formula Mn and are of NaCl type. It is characterized by metallic lusters, high electrical conductivity and melting points, corrosion resistance, wear resistance, and high hardness. It can be used in cutting materials as well as electrode materials and catalytic materials.
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