Aluminum nitride (AlN) is a new type of inorganic material

 Overview of Aluminum Nitride AlN Ceramic Microspheres

Aluminum nitride, a covalent bond compound, is an atomic crystal, belonging to diamond-like nitride, hexagonal crystal system, wurtzite type crystal structure, non-toxic, white or off-white.

Ceramic spherical aluminum nitride was first synthesized in 1877. In the 1980s, AlN ceramic microspheres, as ceramic insulators, were widely used in the field of microelectronics due to their high heat transfer. Unlike beryllium oxide, AlN ceramic microspheres are non-toxic. Ceramic spherical aluminum nitride is treated with metal and can be used as a substitute for aluminum oxide and beryllium oxide in a large number of electronic instruments. Spherical ceramic aluminum nitride can be made by reducing aluminum oxide and carbon or directly nitriding metal aluminum. Aluminum nitride ceramic microspheres are a material connected by covalent bonds. It has a hexagonal crystal structure with the same shape as zinc sulfide and wurtzite. Industrial grade materials can only be made by hot pressing and welding. This material is very stable in an inert high temperature environment.

Aluminum nitride (AlN) is a new type of inorganic material

AlN can be stabilized up to 2200℃. The room temperature strength is high, and the strength decreases slowly with the increase of temperature. It has good thermal conductivity and small thermal expansion coefficient, making it a good thermal shock material. It has strong resistance to molten metal corrosion and is an ideal crucible material for melting and casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties, and it is also promising as an electrical component. The aluminum nitride coating on the surface of gallium arsenide can protect it from ion implantation during annealing. Aluminum nitride is also a catalyst for the transformation from hexagonal boron nitride to cubic boron nitride. It reacts slowly with water at room temperature. It can be synthesized from aluminum powder at 800~1000℃ in ammonia or nitrogen atmosphere. The product is white to grayish blue powder. Or synthesized by Al2O3-C-N2 system at 1600~1750℃, the product is off-white powder. Or aluminum chloride and ammonia are made by gas phase reaction. The coating can be synthesized by vapor deposition method in AlCl3-NH3 system.

AlN+3H2O==catalyst===Al(OH)3↓+NH3↑

Application of Aluminum Nitride AlN Ceramic Microspheres

Due to the characteristics of the piezoelectric effect of aluminum nitride, the epitaxial stretching of aluminum nitride crystals is also used in surface acoustic wave detectors. The detector will be placed on the silicon wafer. There are very few places where these thin films can be reliably manufactured.

The use of aluminum nitride ceramics has high room temperature and high temperature strength, small expansion coefficient, and good thermal conductivity. It can be used as a heat exchanger material for high-temperature structural parts.

Using aluminum nitride ceramics can withstand the corrosion of iron, aluminum and other metals and alloys, it can be used as a crucible and casting mold material for melting metals such as Al, Cu, Ag, and Pb.

1. After secondary laser melting and spherical alloying, the obtained AlN ceramic microspheres have uniform size and good fluidity, which improves the thermal conductivity and insulation of the material;

2. After the AlN surface ceramic microspheres are melted, they undergo anti-hydrolysis and anti-oxidation treatments, and heat conduction exists for a long time after being added.

3. Ceramic spherical aluminum nitride has good injection performance; used in composite materials, it has good matching and good interface compatibility with semiconductor silicon, which can improve the mechanical properties and thermal conductivity of composite materials;

4. Application in high thermal conductivity plastics: Modified AlN ceramic microspheres can greatly improve the thermal conductivity of plastics. At present, it is mainly used for PVC plastics, polyurethane plastics, PA plastics, PP plastics, functional plastics, etc.

Aluminum Nitride AlN Ceramic Microsphere Price

The price of aluminum nitride AlN ceramic microspheres will vary randomly with factors such as production costs, transportation costs, international conditions, exchange rates, and market supply and demand for aluminum nitride AlN ceramic microspheres. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for aluminum nitride AlN ceramic microspheres, please feel free to send an inquiry to get the latest price of aluminum nitride AlN ceramic microspheres.

Aluminum Nitride AlN Ceramic Microsphere Supplier

As a global supplier of aluminum nitride AlN ceramic microspheres, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering 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.

Aluminum Nitride Microsphere Properties
Other NamesAluminium nitride
CAS No.24304-00-5
Compound FormulaAlN
Molecular Weight40.9882
AppearanceWhite to pale yellow powder
Melting Point2200 °C
Boiling Point2517 °C (dec.)
Density2.9 to 3.3 g/cm3
Solubility in H2ON/A
Electrical Resistivity10 to 12 10x Ω-m
Poisson's Ratio0.21 to 0.31
Specific Heat780 J/kg-K
Thermal Conductivity80 to 200 W/m-K
Thermal Expansion4.2 to 5.4 µm/m-K
Young's Modulus330 GPa
Exact Mass40.9846
Monoisotopic Mass40.9846
Aluminum Nitride Microsphere Health & Safety Information
RemarksDanger
Hazard StatementsH314-H335
Hazard CodesXi
Risk Codes36/37/38
Safety Statements26-37/39
RTECS NumberN/A
Transport InformationN/A
WGK Germany3

留言

發佈留言

此網誌的熱門文章

Lithium nitride is the only stable alkali metal nitride

圖片
  Overview of Lithium Nitride  Li3N  Powder Lithium nitride is a metallic nitrogen compound with the molecular formula Li3N. It is the only stable alkali metal nitride. It is a purple or red crystalline solid, with a high melting point and a light green luster in reflected light and ruby color in transmitted light. Exposure to the air over a long period of time will eventually result in lithium carbonate. The chemistry of basic metal nitrides is extremely limited, and only lithium nitride is stable and easily prepared among binary compounds (sodium nitrite and potassium nitrite are prepared only under more extreme conditions). Lithium nitride belongs to the hexagonal crystal system. There are lithium and nitrogen layers composed of lithium and nitrogen atoms in lithium nitride crystal. The lithium atoms are arranged like carbon atoms in a graphite crystal, with nitrogen atoms at the center of a hexagon of lithium atoms. There is a lithium layer between the lithium and ni...
閱讀更多

Cuprous oxide is also known as an inorganic compound of copper oxide

圖片
  Overview of Cuprous oxide  Cu2O  Powder Cuprous oxide,   the chemical formula is Cu2O, is monovalent copper oxide, a bright red powder solid, almost insoluble in water, in acidic solution disproportionation into copper and copper elemental, in the wet air gradually oxidized into black copper oxide. Cuprous oxide is mainly used in the manufacture of ship bottom antifouling paint(used to kill lower Marine animals), insecticides, and various copper salts, analytical reagents, red glass, but also used in the preparation of copper plating and copper plating alloy solution. Copper(I)oxide is also known as an inorganic compound of copper oxide with the chemical formula Cu2O. It's essentially covalent. The copper(I)oxide crystallizes in a cubic structure. When heated, hydrogen tends to reduce the disproportionation it undergoes in acidic solutions that produce copper (II) ions and copper. When the copper oxide is gently heated with metal copper, it is converted to cuprous ...
閱讀更多
圖片
  Overview of Tungsten Disulfide Tungsten disulfide  as a potential battery material is also expected to benefit from more market replenishment. Tungsten disulfide is a layered material with remarkable surface effects, electron mobility, thermochemical stability and high electron density of states. It has been widely used for lithium and sodium storage. For example, nanocomposites as conductive additives or graphene composites as battery cathode materials can exhibit higher specific capacity and discharge efficiency, making up for the deficiencies of single-component WS2 or C as anode materials. The advent of sodium batteries is expected to alleviate the current shortage of lithium resources on the rapid development of the new energy industry, and will further stimulate the application of transition metal dichalcogenides such as tungsten disulfide WS2 in the field of power storage.  Lithium-ion batteries are a key raw material for developing energy devices and realizing t...
閱讀更多