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Overview of Nitrides Nitrides, which are nitrogen-based compounds with fewer electronegativity elements, are also known as metallic nitrides. The nitrides produced by the direct combining of nitrogen and transition elements are known as metallic nitrides. The “mesenchymal compound” name is due to the fact that nitrogen atoms are located in interstitial positions within metal crystal lattices. These compounds are similar in appearance, hardness and electrical conductivity to metals. These compounds 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, which makes 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 now used to make reactor materials.
Nitrogen is highly corrosive and forms a series nitrides that include ionic and covalent nitrides as well as metallic nitrides.
Lonic nitride
The ionic nitrides consisting of alkali metals and alkaline Earth metals have crystals dominated by their ionic bonds. 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.
Covalent nitrides
These nitrides consist of mainly covalent bonding. Compounds containing oxygen, VIIA-group elements, and elements of nitrogen should be called nitrogen oxides, or nitrogen halos. The covalent nitrides most commonly used are those from group IIIa elements and IVA (such Bn, AlN GaN InN C3N4 Si3N4). Diamond nitride is so called because its structural unit is the same as a tetrahedron. High hardness, melting point and 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.
Metallic nitride
These metallic nitrides are filled nitrides. Nitrides made by transition metals have nitrogen atoms located in the spaces between hexagonal or cubic metal lattices. These nitrides are not stoichiometric and can vary in composition within a certain limit. The majority of metal nitrides have a chemical formula Mn and are NaCl types. 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 material.
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