What are the types of nitrides?

Nitride is a nitrogen binary compound with less electronegative elements. The nitride formed by the direct combination of transition element and nitrogen is also called metal nitride. They are "mesenchymal compounds", so named because nitrogen atoms occupy interstitial positions in the metal lattice. These compounds are similar to metals in appearance, hardness, and conductivity. They are usually hard, high melting point, chemically stable and conductive. Nitrogen compounds such as titanium, vanadium, zirconium, and tantalum are hard and refractory, and have special features such as resistance to chemical corrosion and high temperature. For example, TiN has a melting point of 2 930 ~ 2 950°C, which is a good conductor of heat and electricity. It has superconductivity at low temperatures and is used to make jet engines. ZrN is superconducting at low temperatures and is now used as a reactor material.

Nitrogen has high electronegativity and can form a series of nitrides with many elements with lower electronegativity, including ion nitrides, covalent nitrides and metal nitrides.

The nitrides formed by alkali metals and alkaline earth metal elements belong to ionic nitrides, and their crystals are dominated by ionic bonds. Nitrogen exists in the form of N3-, also known as salt nitrides. Currently, only Li3N is used for ion nitrides. Li3N is a dark red solid of hexagonal crystal system with a density of 1.27g/cm3 and a melting point of 813°C. The synthesis is simple and the ion conductivity is high. It can be combined with solid or liquid, and the coexistence of lithium is one of the best solid lithium electrolytes.

Covalent nitride

Nitride The covalent nitride formed by the elements of the IIIa~VIIa group, the crystals are mainly covalent bonds. Among them, compounds composed of oxygen, VIIA elements and nitrogen elements should be accurately called nitrogen oxides and nitrogen halides. The most widely used covalent nitrides are mainly IIIa and IVA elements (such as Bn, AlN, GaN, InN, C3N4 and Si3N4). Its structural unit is similar to the tetrahedron of diamond, so it is also called diamond nitride. High hardness, high melting point and good chemical stability. Most of them are insulators or semiconductors. It is widely used in cutting tools, high-temperature ceramics, microelectronic devices, luminescent materials and other fields.

Metal nitride

The nitride formed by the transition metal element is a metal nitride in which nitrogen atoms are located in the gaps between the cubic or hexagonal densely arranged metal lattices, and is also called a filled nitride. The chemical formulas of these nitrides do not follow a strict stoichiometric ratio, and their composition can vary within a certain range. Most metal nitrides are of the NaCl type, and the chemical formula is of the Mn type. Generally, it has metallic luster, good conductivity, high hardness, high melting point, wear resistance and corrosion resistance and other similar metal properties. It has good application prospects in cutting materials, electrode materials, and catalytic materials.

Overview of nitride powder

Nitride powder is a metal powder or ceramic widely used in many technical applications, and has become a high-tech material in the engineering ceramic industry. The appearance, hardness and conductivity of metal nitride powders are similar to those of metals. Metal nitride powders usually have high hardness, high melting point, stable chemical properties, and good conductivity.

Application of nitride powder

Among them, aluminum nitride (AlN) has excellent thermal conductivity and good chemical resistance. Boron nitride (BN) has flexibility and lubricity. Silicon nitride (Si3N4) requires good thermal shock resistance and high fracture resistance. Very suitable for hard sintered bodies. In addition, it also provides a full range of ceramic nitride materials for various industrial applications. Calcium nitride (Ca3N2) is an important chemical reagent, which is widely used in the chemical industry. It has important uses. Calcium nitride can be used to obtain active nitride ions. In addition, calcium hydride can be prepared by heating calcium nitride and hydrogen at a temperature higher than 350°C. Calcium hydride is a reducing agent, desiccant and chemical analysis agent. Used in powder metallurgy. When heated from 600°C to 1000°C, it can be reduced with zirconium,

Nitride price

The price of nitride will vary randomly with factors such as the production cost, transportation cost, international situation, exchange rate, market supply and demand of the nitride. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality nitrides, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for nitrides, please feel free to send inquiries about the latest prices of nitrides.

Nitride supplier

As a global nitride supplier, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.