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About AlN Ceramic Powder Injection Molding Components:
Aluminum nitride, covalent bond compound, the chemical formula is AIN, is an atomic crystal, belongs to diamond-like nitride, hexagonal system, wurtzite type crystal structure, non-toxic, white or off-white. AlN can stabilize up to 2200℃. The strength at room temperature is high, and the strength decreases slowly with the increase of temperature. Good thermal conductivity, small coefficient of thermal expansion, is a good heat-resistant impact material. It is an ideal crucible material for melting and casting pure iron, aluminum or aluminum alloy because of its strong ability to resist molten metal erosion. Aluminum nitride is also an electrical insulator, with good dielectric properties, and is also promising as an electrical component. The aluminum nitride coating on the surface of gallium arsenide protects it from ion implantation during annealing. Tqhp is a trusted global AlN Ceramic Powder Injection Molding Components supplier. Feel free to send an inquiry about the latest price of AlN Ceramic at any time.
Product Performance of Aluminum Nitride AlN Ceramic Microsphere:
Our AlN ceramic powder injection molding components has the properties: excellent performance, low in cost, high production quantities and shape complexity.
Features of AlN Ceramic Powder Injection Molding Components:
High thermal conductivity
High insulation strength
Complex shape custom available
Specification of AlN Ceramic Powder Injection Molding Components:
|Thermal conductivity (W/m·K)
|Bending Strength (MPa)
How is AlN Ceramic Powder Injection Molding Components Produced?
Preparation of aluminum nitride ceramic powders by direct nitriding of Al powder:
The direct nitriding method of Al powder is the earliest method to prepare AlN powder. In this method, aluminum powder is heated in nitrogen. At high temperatures (800~1200℃), aluminum powder and nitrogen directly react to produce aluminum nitride powder, the reaction formula is 2Al + N2 =2AlN.
This method has the advantages of abundant raw materials, low cost, simple process, and no side reaction. However, the disadvantages of this method are also obvious. At the initial stage of reaction, the surface of aluminum powder particles will gradually form a nitride film, which makes it difficult for nitrogen to penetrate further and hinders nitrogen reaction, resulting in a low yield. And because the reaction between aluminum and nitrogen is a strongly exothermic reaction, the speed is very fast, resulting in the AlN powder self-sintering, forming agglomeration, making the powder particles coarsening.
The preparation methods of aluminum nitride powder include Al2O3 carbothermal reduction, self-spreading high-temperature synthesis, high-energy ball milling, chemical vapor deposition, sol-gel method, plasma chemical synthesis, in-situ autoreactive synthesis, arc melting, microwave synthesis, sol-thermal synthesis, etc.
Applications of AlN Ceramic Powder Injection Molding Components:
1. Aluminum nitride powder with high purity, small particle size and high activity. It is the main raw material for manufacturing high thermal conductivity aluminum nitride ceramic substrate.
2. Aluminum nitride ceramic substrate has high thermal conductivity, low expansion coefficient, high strength, high-temperature resistance, chemical corrosion resistance, high resistivity, small dielectric loss. It is an ideal substrate and packaging material for large-scale integrated circuits.
3. The hardness of aluminum nitride is higher than that of traditional alumina. It is a new type of wear-resistant ceramic material, but because of its high cost, it can only be used for parts with severe wear.
4. By using the heat resistance, melt erosion resistance and thermal shock resistance of AIN ceramics, GaAs crystal crucible, Al evaporation plate, magnetic fluid power generation device and high-temperature turbine corrosion resistance parts can be made, and its optical properties can be used as an infrared window. The aluminum nitride film can be made into high-frequency piezoelectric elements and very large-scale integrated circuit substrates.
5. Aluminum nitride heat resistance, corrosion of molten metal, stable to acid, but in alkaline solution is easy to be eroded. Exposure to wet air on the new surface of AIN reacts to form an extremely thin oxide film. Using this characteristic, it can be used as a crucible and casting mold material for aluminum, copper, silver, lead and other metals melting.AIN ceramics have good metallization properties and can replace toxic beryllium oxide ceramics in the electronic industry.
Storage Condition of AlN Ceramic Powder Injection Molding Components:
The damp reunion will affect AlN ceramic powder injection molding components dispersion performance and using effects, therefore, it should be sealed in vacuum packing and stored in cool and dry room, the AlN ceramic powder injection molding components can not be exposure to air. In addition, it should be avoided under stress.
Packing & Shipping of AlN Ceramic Powder Injection Molding Components:
We have many different kinds of packing which depend on the AlN ceramic powder injection molding components quantity.
AlN ceramic powder injection molding components packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
AlN ceramic powder injection molding components shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
AlN Ceramic Powder Injection Molding Components Properties
|White to pale yellow powder
|2517 °C (dec.)
|2.9 to 3.3 g/cm3
|Solubility in H2O
|10 to 12 10x Ω-m
|0.21 to 0.31
|80 to 200 W/m-K
|4.2 to 5.4 µm/m-K
AlN Ceramic Powder Injection Molding Components Health & Safety Information