Prospects for the development of aluminum-aluminum ceramics

 The Development Prospect of Aluminum Nitride AlN Ceramics

Aluminum nitride has excellent thermal, electrical and mechanical properties. Aluminum nitride ceramics have attracted widespread attention from researchers at home and abroad. With the rapid development of modern science and technology, higher requirements have been placed on the properties of the materials used. Aluminum nitride ceramics will also be more widely used in many fields! Despite the unremitting efforts of many researchers over the years, great progress has been made in the research of powder preparation, forming, and sintering. However, as of April 2013, the commercialization of aluminum nitride is not high, which is also a key factor affecting the further development of aluminum nitride ceramics. In order to promote the further development of aluminum nitride research and application, the following two research tasks must be done. Research low-cost powder preparation technology and methods! The main factor restricting the commercialization of aluminum nitride is the price issue. If aluminum nitride powder can be prepared at a lower cost, its commercialization will be greatly improved! High-temperature self-propagating method and low-temperature carbothermic reduction synthesis process are promising powder synthesis methods. Both have the characteristics of low cost and suitable for large-scale production! Research on the net near forming technology of complex-shaped aluminum nitride ceramic parts, such as injection molding technology. It is of great significance to give full play to the performance advantages of aluminum nitride. It is of great significance to broaden its application range!

Overview of aluminum nitride AlN ceramic microspheres

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.

Prospects for the development of aluminum-aluminum ceramics

AIN crystals are covalently bonded compounds with 〔AIN4〕 tetrahedron as the structural unit, which has a wurtzite-type structure and belongs to the hexagonal crystal system. Chemical composition AI 65.81%, N 34.19%, specific gravity 3.261g/cm3, white or off-white, colorless and transparent single crystal, sublimation decomposition temperature under normal pressure is 2450℃. It is a high-temperature heat-resistant material. Coefficient of thermal expansion (4.0-6.0) X10-6/℃. The thermal conductivity of polycrystalline AIN is 260W/(m.k), which is 5-8 times higher than alumina, so it has good thermal shock resistance and can withstand extreme heat at 2200℃. In addition, aluminum nitride has the characteristics of not being corroded by molten aluminum, other molten metals and gallium arsenide, and especially has excellent corrosion resistance to molten aluminum.

Application of aluminum nitride AlN ceramic microspheres

1. Aluminum nitride powder has high purity, small particle size and high activity. It is the main raw material for manufacturing high thermal conductivity aluminum nitride ceramic substrates.

2. Aluminum nitride ceramic substrate has high thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity, and low dielectric loss. It is an ideal large-scale integrated circuit heat dissipation substrate and packaging material.

3.Aluminum nitride has high hardness, which is higher than that of traditional alumina.It is a new type of wear-resistant ceramic material.

4. Utilizing the heat resistance, melt erosion resistance and thermal shock resistance of AIN ceramics, GaAs crystal crucibles, Al evaporating dishes, magnetic fluid power generation devices, and high temperature turbine corrosion-resistant parts can be made, and its optical properties can be used as infrared windows. Aluminum nitride film can be made into high-frequency piezoelectric components, super-large-scale integrated circuit substrates, etc.

5. Aluminum nitride is heat-resistant, resistant to corrosion by molten metal, stable to acid, but easily corroded in alkaline solution. The new surface of AIN will react when exposed to humid air to form a very thin oxide film. Using this feature, it can be used as a crucible and casting mold material for melting aluminum, copper, silver, lead and other metals. AIN ceramics have good metallization properties and can replace toxic beryllium oxide ceramics and are widely used in the electronics industry.

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.

Suppliers of Aluminum Nitride AlN Ceramic Microspheres

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.

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 nitrogen layers.
閱讀更多

Is zinc sulfide fluorescent or phosphorescent?

圖片
  Overview of Zinc Sulfide ZnS Zinc sulfide  is a white to off-white or light yellow powder, which becomes darker when exposed to light, stable in dry air, and gradually oxidized to zinc sulfate when stored for a long time in humid air or containing water. Soluble in dilute inorganic acid, soluble in alkali, insoluble in water. Relative density 3.98 (alpha type), (d25) 4.102 (beta type). irritating. Is zinc sulfide fluorescent or phosphorescent? Zinc sulfide  is one of the most common phosphorescent materials. Phosphorescence is a special type of photoluminescence. Unlike fluorescent substances, phosphorescent materials emit absorbed energy immediately. What are the properties of zinc sulfide? Zinc sulfide  is white or slightly yellow powder. Turns into crystals when burned in H2S gas. Its α variant is a colorless hexagonal crystal with a density of 3.98g/cm3 and a melting point of 1700°C. Its beta variant is a colorless cubic crystal with a density of 4.102 g/cm3, which transforms to
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 the vision of &
閱讀更多