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Type introduction of nitride powder

wallpapers News 2021-04-29
What is nitride?
Nitride is a type of nitrogen compound in which nitrogen has a -3 valence. Including metal nitrides, non-metallic nitrides, and ammonia (NH3, nitrogen negative trivalent). It is customary to treat ammonia as a special substance and is not included in nitrides. Metal nitrides have high thermal stability and can be used as high-temperature insulating materials. The thermal stability of non-metallic nitrides is also relatively high, and each has special properties. Cubic boron nitride is an excellent lubricant; while hexagonal boron nitride has high hardness, it can be used to make turning tools, drills, etc.
What are the metal nitrides?
Metal nitride refers to a compound formed by a metal element and nitrogen. Important ones are lithium nitride (Li3N), magnesium nitride (Mg3N2), aluminum nitride (AlN), titanium nitride (TiN), tantalum nitride (TaN) and so on. Most of them are insoluble in water and have high thermal stability, and can be used as high-temperature insulating materials, such as titanium nitride, tantalum nitride, vanadium nitride (VN), etc. A few are completely hydrolyzed in water to form metal element hydroxides and release ammonia, such as magnesium nitride and aluminum nitride. Some metal nitrides can be directly combined with metal after heating. Some are made by heating metals, metal oxides or metal chlorides in a stream of ammonia.

Important non-metallic nitride
There are boron nitride (BN), phosphorus pentanitride (P3N5), silicon nitride (Si3N4) and so on.

Nitride powder application
Among them, aluminum nitride (AlN) is known for its excellent thermal conductivity and good chemical resistance; boron nitride (BN) has flexibility and lubricity. Silicon nitride (Si3N4) is an excellent choice for sintered bodies that require good thermal shock resistance and high fracture toughness. In addition, it also provides a full range of ceramic nitride materials for various industrial applications. Calcuim Nitride (Ca3N2) is widely used in the chemical industry as an important chemical reagent, and has important uses in the chemical industry. Calcium nitride can be used to obtain reactive nitride ions. In addition, calcium hydride can be produced by heating calcium nitride with hydrogen at a temperature higher than 350°C. Calcium hydride is a reducing agent, desiccant, and chemical analysis agent. It is used in powder metallurgy. When heated from 600°C to 1000°C, it can be reduced with metal oxides such as zirconium, niobium and ha to obtain the corresponding metal powder.

Why is nitrogen dioxide dangerous?
NO2 may irritate the eyes, nose and throat, and may cause lung irritation and decreased lung function when inhaled. In areas with high levels of nitrogen dioxide, an increased chance of asthma attacks due to respiratory discomfort has been observed, and an increase in hospital stay.

Oriented hexagonal boron nitride promotes new information carriers
The new option is to use the wave quantum number of electrons, through which the electron wave quantum number can be shown in this study, by controlling the stacking configuration and direction of different two-dimensional materials, the wave quantum number can be manipulated.

What price of the Nitride powder
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