AlN powder aluminum nitride supplier

Name: AlN powder aluminum nitride supplier
Price: 20.00 USD
Availability: InStock

$20.00~

$60.00

1 Kilograms（Min.Order）

AlN powder aluminum nitride supplier

$20.00~$60.00

per Kilogram

Product Details

01 (2)

Product Description

Product Details

What is aluminum nitride?

Aluminum nitride is a covalently bonded compound, belonging to the hexagonal crystal system, wurtzite type crystal structure, white or off-white. The strength of aluminum nitride is high at room temperature and decreases slowly with the increase in temperature. Aluminum nitride has good thermal conductivity and a small coefficient of thermal expansion, so it is a good heat-resistant impact material. It has excellent thermal shock resistance. The thermal conductivity of AlN is 2 ~ 3 times that of Al2O3, and the strength is higher than that of Al2O3 when hot pressing.

Aluminum nitride powders of different purities and particle sizes are available for you to choose from. You are welcome to contact us at any time.

Chemical properties of aluminum nitride

Aluminum nitride has good corrosion resistance to Al and other molten metals, gallium arsenide, etc., especially to molten Al liquid has excellent corrosion resistance but also has excellent electrical insulation and dielectric properties. But aluminum nitride's high-temperature oxidation resistance is poor, easy to absorb moisture in the atmosphere, hydrolysis, and wet air, water or water liquid contact to produce heat and nitrogen and rapidly decompose. Decomposition at 2516℃, the thermal hardness is very high, even before the decomposition temperature does not soften deformation. Aluminum nitride and water can also react slowly at room temperature and be hydrolyzed. And dry oxygen at 800℃ above the reaction.

(1) High thermal conductivity (about 320W/m·K), close to BeO and SiC, more than 5 times that of Al2O3;

(2) the thermal expansion coefficient (4.5 x 10-6 ℃) and Si (3.5 ~ 4 x 10-6 ℃) and GaAs (6 x 10-6 ℃) matching;

(3) various electrical properties (dielectric constant, dielectric loss, bulk resistivity, dielectric strength) excellent;

(4) good mechanical properties, higher flexural strength than Al2O3 and BeO ceramics, can be sintered under atmospheric pressure;

(5) High purity;

(6) Good optical transmission characteristics;

(7) non-toxic;

(8) can be made by the flow process. It is a promising substrate and packaging material for high-power integrated circuits.

Application of aluminum nitride

1. Aluminum nitride ceramic is a new type of high-technology ceramic. Aluminum nitride substrate has the characteristics of high thermal conductivity, non-toxic, corrosion resistance, high-temperature resistance, good thermochemical stability, etc. It is an ideal packaging material, heat dissipation material, circuit components and interconnects line carrier for large-scale integrated circuits, semiconductor module circuits and high-power devices.

2. Aluminum nitride is the best additive to improve the thermal conductivity and mechanical properties of polymer materials.

3. Aluminum nitride ceramics can also be used for smelting non-ferrous metals and semiconductor materials gallium arsenide crucible, thermocouple protection tube, high-temperature insulation, microwave dielectric materials, high-temperature resistance, corrosion resistance structural ceramics and transparent aluminum nitride microwave ceramic products, used as high thermal conductivity ceramics production raw materials and resin filler.

4. Aluminum nitride is an electrical insulator with good dielectric performance. The aluminum nitride coating on the surface of gallium arsenide protects it from ion injection during annealing.

5. Aluminum nitride can be used as high thermal conductivity ceramics production raw materials, AlN ceramic substrate raw materials, resin filler, etc.