Application of Cerium Nitride in Inorganic Composite Materials

 Overview of Cerium Nitride CeN Powder

Cerium nitride is a brown powder with a chemical formula of CEN and a molecular weight of 154.11g/mol. It has a NaCl type structure (A=0.501nm) and is soluble in acid. Stabilizes and releases ammonia at high temperatures. It reacts with alkali in an electric arc furnace. Cerium nitride is dangerous when wet. Cerium flakes or cerium metal are used as raw materials.

Rare earth elements are known as "industrial vitamins" and are extremely important strategic resources. They are widely used in the fields of petroleum, chemical industry, metallurgy, textiles, ceramics, glass, and permanent magnet materials. Therefore, the research on rare earth compounds is very important. Cerium nitride is a gray powder. Stable in dry air, it will be decomposed into cerium oxide and ammonia when it meets water, and react with dilute sulfuric acid to produce cerium sulfate and ammonium sulfate. Heating cerium nitride in a stream of hydrogen produces cerium hydride and ammonia gas. At 850-900℃, cerium is directly combined with nitrogen. Cerium nitride can be used to make various inorganic composite materials, such as high-performance ceramics, semiconductor materials, luminescent materials, etc. The preparation of these materials has extremely high requirements for the purity of cerium nitride. The current preparation methods of cerium nitride are mainly high-temperature solid-phase direct nitridation. The advantages of this method are simple process, low cost and low impurity content, but its disadvantages are also very obvious. The metal Ce powder is easily oxidized in the air, making the purity of the product not high. Generally, the nitrogen content is 6.8wt%～8.0wt %, it is difficult to meet customer needs. However, some other preparation methods, such as hydride pyrolysis, reduction, liquid phase, gas phase, etc., generally have complex process flow, long production cycle, high cost, easy introduction of impurities, excessive equipment requirements, and low output. And other shortcomings.

Cerium Nitride CeN Powder Application

Cerium nitride can be used to make various inorganic composite materials, such as high-performance ceramics, semiconductor materials, and luminescent materials. Examples of its applications are as follows:

1. Preparation of mixed rare earth toughened and reinforced alumina-based ceramic composite materials. The composite material contains aluminum oxide and titanium carbide, and is characterized in that it also contains at least two compounds of lanthanum nitride, cerium nitride, praseodymium nitride, and neodymium nitride. The preparation method is to first use cemented carbide balls to mix and grind the AlTiC master alloy, mixed rare earth and Al2O3, and then put it into a vacuum drying oven for drying and drying, and the powder passes through a 100-mesh sieve to obtain a mixed powder; The mixed powder is put into a graphite mold for compression molding, and then hot-pressed and sintered in a nitrogen atmosphere. The composite material has simple preparation process and low raw material cost, and is especially suitable for ceramic sandblasting nozzles, bearings and other parts that require high wear resistance.

2. Prepare a corrosion-resistant milling cutter. In metal cutting, a reasonable choice of tool blade shape (helix angle, rake angle, relief angle, blade inclination) is an important condition for giving full play to the performance of the tool. Reasonable selection of the blade shape of the tool can increase the machining life of the tool and realize high-speed machining. Studies have provided a corrosion-resistant milling cutter. The milling cutter is composed of a steel-bonded cemented carbide. The raw material powder of the steel-bonded cemented carbide includes a hard phase and a steel-based binder. The hard phase of the milling cutter of the present invention is boronized. The composition of tungsten, silicon carbide, nickel oxide, cerium nitride, and Cr improves the mechanical properties of the material; the composition of the steel-based binder has higher strength, and the strength of the steel-bonded cemented carbide is further improved under the action of the hard phase .

3. Prepare a kind of grid cable fixing clamp. The raw material powder for manufacturing the power grid cable fixing clip (molar ratio); 30-40 parts of copper powder, 6-7 parts of Al powder, 2-3 parts of graphite powder, 1-2 parts of Zn powder, 1-2 parts of zirconium carbide, 0.7-0.8 parts of chromium trioxide, 0.5-0.6 parts of V powder, 0.3-0.4 parts of chromium carbide, 0.3-0.4 parts of Ni powder, 0.2-0.3 parts of cerium nitride, and 0.1-0.2 parts of cobalt oxide, the power grid cable of the present invention The wire fixing clip uses copper powder, graphite powder, Al powder, Zn powder, zirconium carbide, chromium trioxide, V powder, chromium carbide, Ni powder, cerium nitride, cobalt oxide raw material powder, and the raw material composition is improved by pressing and sintering Improve the strength of the product; 2) Through powder mixing, pressing and sintering, annealing, quenching, tempering and other processes, the manufacturing process is intensive and the production cost is reduced.

4. Modify the surface of metal cerium. As an important rare earth element, metal cerium is often used as a reducing agent, catalyst and alloy additive, and has important and wide-ranging uses in modern industry. However, due to the very active chemical properties of metal cerium, it is easy to oxidize and corrode at room temperature, and will quickly lose luster and aging under atmospheric conditions, which affects its metal characteristics and surface appearance quality. At present, metal cerium is mainly sealed and stored in a cool or kerosene medium to passively slow down the oxidation and corrosion of metal cerium. However, these methods have high requirements for air tightness, easily cause pollution to metal cerium, and the storage effect is not ideal. , The metal cerium still has serious oxidation corrosion.

Using a dual ion beam sputtering deposition system, the polished metal cerium surface is first cleaned by argon ion sputtering, then nitriding reactive sputtering is performed to generate a cerium nitride coating, and finally a ceramic target such as titanium nitride is used for direct Sputtering generates a titanium nitride ceramic coating, and finally forms a composite double-layer coating of cerium nitride and titanium nitride on the cerium surface. By nitriding metal cerium and depositing titanium nitride coating, the anti-aging corrosion performance of metal cerium is significantly enhanced. The electrochemical polarization curve test shows that the corrosion current density of metal cerium before and after treatment can be reduced by about 5 times, and the cerium nitride Both the titanium nitride coating and the titanium nitride coating are golden yellow coatings, thereby increasing the aesthetic effect of the metal cerium surface.

Cerium Nitride CeN Powder Price

The price of cerium nitride cen powder will vary with random factors, such as production cost of cerium nitride cen powder, transportation cost, international situation and market supply and demand for cerium nitride cen powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find the cost of high-quality and low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for cerium nitride CeN powder products, please feel free to send an inquiry to get the latest price of cerium nitride CeN powder.

Cerium Nitride CeN Powder Supplier

As a global cerium nitride CeN powder supplier, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (molybdenum disilicide, lanthanum nitride (LaN powder, calcium silicide, iron boride), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical Data of Cerium Nitride CeN powder
Part Name	High Purity Cerium Nitride Powder
MF	CeN
Purity	99.5%
Particle   Size	-100 mesh
Application	Cerium nitride CeN powder is used in high-end ceramics, luminescent materials, special metallurgy, etc.
Specification of Cerium Nitride CeN powder
Part Name	Cerium Nitride CeN Powder
Appearance	Brown Powder
Purity	99.5%
Ca (wt%)	0.0026
Fe (wt%)	0.0032
Si (wt%)	0.0013
C (wt%)	0.001
Al (wt%)	0.0021
Mg (wt%)	0.0007