High Purity Chromium Nitride CrN Powder CAS 12053-27-9, 99%

Description of Chromium Nitride CRN Powder：

Structure:

The crystal structure of chromium nitride is similar to that of metal and belongs to the face-centered cubic crystal system. In chromium nitride, each chromium atom forms a tetrahedral coordination with four nitrogen atoms, while each nitrogen atom forms a tetrahedral coordination with two chromium atoms. In this structure, there is an empty tetrahedral gap around each nitrogen atom, which gives chromium nitride a high melting point and hardness.

Physical properties:

Chromium nitride is a gray or black solid with a high melting point and hardness. Its density is higher than expected, mainly due to the tight bond between nitrogen and chromium atoms. In addition, chromium nitride has good electrical conductivity and thermal shock resistance.

Chemical properties:

Chromium nitride does not react with water, acids, or bases at room temperature. However, under high-temperature conditions, chromium nitride can react with certain metallic elements (such as aluminum, iron, etc.) to form intermetallic compounds. In addition, chromium nitride can also react with carbon at high temperatures to produce chromium carbide and nitrogen.

Preparation method:

Chromium nitride can be prepared by reacting chromium powder with nitrogen at high temperatures, and the resulting chromium nitride is deposited on the wall of the reaction vessel. Another preparation method is to react chromium metal with nitrogen at high temperatures to produce chromium nitride and hydrogen.

Application field:

Chromium nitride has been widely used in many fields. It is used as an additive in ceramic materials to improve the hardness and thermal shock resistance of ceramics. In addition, chromium nitride can also be used as a protective gas in metal smelting and as an ion implantation source material.

Toxicity:

Chromium nitride is not a highly toxic substance, but it is irritating, and long-term exposure may cause skin and respiratory irritation. Therefore, when handling and using chromium nitride, corresponding protective measures should be taken. In addition, due to its specific toxicity, when managing and using chromium nitride, environmental pollution should be reduced as much as possible.

Environmental impact:

In the environment, chromium nitride is not easy to break down or release harmful substances, so it has less impact on the environment. However, due to its toxicity, environmental pollution should be reduced as much as possible when handling and using chromium nitride. At the same time, it is also necessary to control waste treatment and recycling to avoid adverse environmental effects.

Production Method of Chromium Nitride CrN Powder：

Direct nitriding method:

Direct nitriding is one of the standard methods for producing chromium nitride. The method directly reacts chromium powder with nitrogen at high temperatures to produce chromium nitride. The specific reaction conditions and process parameters will vary according to different preparation methods and equipment. Usually, the reaction needs to be carried out under high temperature and pressure conditions, so specialized equipment needs to be used to meet these conditions. In addition, to obtain high-purity chromium nitride, subsequent purification and refining processes are required.

The advantage of direct nitriding is that the process is relatively simple, and a higher yield can be obtained. However, this method also has some disadvantages, such as the need for subsequent heat treatment and annealing treatment and other processes and high requirements for equipment and technology.

In the direct nitriding process, the following steps can be used to prepare chromium nitride:

(1) Mix chromium powder and nitrogen and heat to high temperature;

(2) React at high temperature for some time so that chromium powder and nitrogen fully react;

（3) Cooling to room temperature to obtain chromium nitride products.

It should be noted that during the heating process, parameters such as temperature and pressure should be strictly controlled to ensure that the reaction can proceed smoothly and obtain high-quality chromium nitride. In addition, when conducting subsequent process treatments such as heat treatment and annealing treatment, attention should also be paid to controlling process parameters to ensure the stability and quality of chromium nitride.

Thermal decomposition method:

Thermal decomposition is another method of producing chromium nitride. The process is the thermal decomposition of compounds containing nitrogen and chromium elements (such as chromous nitride, chromium cyanide, etc.) at high temperatures to produce chromium nitride. The specific reaction conditions and process parameters will vary for different compounds and equipment. Usually, the reaction needs to be carried out under a high-temperature vacuum, so specialized equipment is required to meet these conditions. In addition, to obtain high-purity chromium nitride, subsequent purification and refining processes are needed.

However, this method also has some disadvantages, such as the need for subsequent heat treatment and annealing treatment and other processes and high requirements for equipment and technology.

In the thermal decomposition process, the following steps can be used to prepare chromium nitride:

(1) The compounds containing nitrogen and chromium are heated;

(2) Reaction at high temperature for some time so that the compound thermal decomposition;

(3) Carry out subsequent heat treatment, annealing treatment, and other processes to obtain chromium nitride.

It should be noted that during the heating process, parameters such as temperature and pressure should be strictly controlled to ensure that the reaction can proceed smoothly and obtain high-quality chromium nitride. In addition, when conducting subsequent process treatments such as heat treatment and annealing treatment, attention should also be paid to controlling process parameters to ensure the stability and quality of chromium nitride.

Metal surface coating:

Chromium nitride can be used as a metal surface coating material to improve the hardness, wear resistance, and corrosion resistance of metals. In the coating, chromium nitride can form a dense protective film, effectively preventing the external environment from eroding and wearing the metal surface. This coating technology can be used to manufacture metal parts and equipment with high precision, high wear resistance, and high corrosion resistance.

Ceramic material additives:

Chromium nitride can be used as an additive in ceramic materials to improve the hardness and thermal shock resistance of ceramics. In ceramics, chromium nitride can refine grain and enhance grain boundary binding force, thus improving the mechanical properties and thermal stability of ceramics. This additive technology can be used to manufacture ceramic materials with high strength, high hardness, and high heat resistance.

Cutting tool materials:

Chromium nitride can be used as a cutting tool, such as high-speed cutting tools and drills. In cutting tools, chromium nitride can improve the hardness, wear resistance, and heat resistance of devices, thereby extending the service life of tools and improving cutting efficiency. This application can be used in machining and manufacturing fields.

Electronic Components Manufacturing:

Chromium nitride can be used as one of the materials in the manufacture of electronic components, such as integrated circuit chips, transistors, etc. In electronic components, chromium nitride can provide good electrical conductivity and stability, thereby improving the performance and reliability of electronic components. This application can be used in the electronics industry and information technology.

Aerospace field:

Chromium nitride also has essential applications in the aerospace sector. It can be used as a high-temperature structural and protective coating material for manufacturing high-temperature components such as combustion chambers and turbine blades in aircraft engines. In addition, chromium nitride can also be used as a high-temperature protective coating material on the surface of the aircraft to improve the high-temperature resistance and corrosion resistance of the plane.

Automotive industry:

Chromium nitride is also widely used in the automotive industry. It can be used as a wear-resistant coating material in automotive engines to protect components such as cylinder walls and piston rings from wear and corrosion. In addition, chromium nitride can also be used as a friction material in automotive brake pads, providing a high coefficient of friction and wear resistance.

Medical field:

Chromium nitride also has essential applications in the medical field. It can be used as a surface modifier for biological materials, such as artificial joints, dental implants, etc. By coating the surface with chromium nitride, the wear resistance and corrosion resistance of the biomaterial can be improved, reducing the risk of infection after implantation surgery. In addition, chromium nitride can also be used as a drug carrier and drug-release material to achieve drug-directed transmission and slow release. This application provides new treatment methods and means for the medical field.

Shipping and Packing of Chromium Nitride CrN Powder:
Many types of packaging are available depending on the amount CrN powder.
Packing of Chromium nitride, CrN powder: You can vacuum pack 100g, 500g, 1kg/bag or 25kg/barrel. Or as you request.
Shipment of Chromium nitride CrN Powder In most cases, you can have your order shipped by sea or air as soon as payment is received.

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