Advanced Nano Material

  Overview of Aluminum Nitride Aluminum nitride (AlN)  is hexagonal, and pure AlN is blue-white, usually gray or off-white. Aluminum nitride ceramics have a series of excellent characteristics such as excellent thermal conductivity, reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic, and thermal expansion coefficient matching with silicon. It is a new ceramic material with excellent comprehensive performance. Aluminum nitride characteristics 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. (1) Aluminum nitride has high thermal conductivity (about 320W/m·K), which is close to BeO and SiC, and is more than 5 times that of Al2O3; (2) The thermal expansion coefficient of aluminum nitride (4.5×10-6°C) matches that of Si (3.5-4×10-6°C) and GaAs (6×10-6°C); (3) Various electrical properties (dielectric constant,

  Overview of  graphite powder lubricants Graphite  has a flaky crystal structure with good lubricating properties. It also has good electrical conductivity, thermal conductivity, wear resistance, pressure resistance, temperature resistance (temperature up to 450 ℃), and chemical stability, so graphite is widely used in the machinery industry to make various lubricants. The carbon atoms are held together firmly in the flakes. Since the bond between the thin plates is weak, graphite exhibits lower shear strength under frictional force. Therefore, it can be used as a solid lubricant and has become one of the traditional and main solid lubricating materials. Application of graphite lubricant Used as a lubricant, mainly to distribute fine graphite particles evenly in water, oil, or other media to form a stable colloid. It can be directly applied to parts that need lubrication by spin coating, dip coating, or spraying. Can be added to various lubricants and used together. Contact with the m

  Overview of Few-layer Graphene as Anode Material for  Lithium Battery The few graphene layers consist of ultra-thin layers of carbon atoms arranged in a hexagonal honeycomb lattice. Graphene films produced by chemical vapor deposition (CVD) are polycrystalline in nature, with multiple small graphene domains growing and merging into a continuous film. Compared with single-layer graphene, by inserting different substances into its layered structure, fewer layers are likely to develop into materials or heterostructures. Low-layer graphene inherits the original crystal structure and properties of natural flake graphite. It has a very large aspect ratio (diameter/thickness ratio), and has excellent electrical, thermal and mechanical properties. Has excellent electrical conductivity, lubricity, corrosion resistance, high temperature resistance, etc. The specific surface area of the small layer graphene is 400~700㎡/g, and the thickness is 0.55~3.74nm. Graphene has a high specific surface ar

  Aluminum nitride is an atomic crystal, belonging to diamond-like nitride, hexagonal crystal system, wurtzite crystal structure, non-toxic, aluminum nitride is white or off-white powder. What are the properties of aluminum nitride? AlN can be stabilized up to 2200℃, with high room temperature strength, and the strength increases and decreases slowly with temperature. Aluminum nitride has good thermal conductivity and low thermal expansion coefficient, making it a good thermal shock material. It has strong corrosion resistance to molten metal and is an ideal crucible material for casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties, and it is also very promising as an electrical component. The aluminum nitride coating on the gallium arsenide surface can protect it from ion implantation during the annealing process. Aluminum nitride is also a catalyst for the transformation of hexagonal boron nitride to cubic bor

  Overview of  TR-40 Foam Concrete Machine Product performance of  TR-40 foam concrete machine 1. The outer shell is made of high-strength precision thickened steel plate, painted twice, and is durable. 2. The slurry is uniform and stable, the density of the foam concrete finished product is uniform, and the quality is stable. 3. The remote control operation is simple and convenient, realizing one-key start and stop. 4. Brand-new cylinder head design, enlarged lower cylinder body, effectively prevent cement slurry from clogging. Upper cylinder ball seat Independent processing, more convenient for disassembly and inspection. 5. The cylinder head has a reserved cleaning port, which can be cleaned without disassembly and assembly. 6. The cylinder head has built-in retaining ribs to make the appearance more beautiful. 7. The use of advanced double-cylinder hydraulic propulsion overcomes the defect of internal leakage of the hydraulic cylinder: outlet pressure High, in high-rise buildings,

  Overview of CLC concrete foam generator The foam generator, also known as the foam machine, is a foaming device that enables the foaming agent to reach a certain concentration in the aqueous solution. Foaming agent itself cannot automatically become a foam, it must undergo the mechanical action of the foaming machine to become a foam. Parameters of TR15 foam generator Model TR15 Maximum foam output （ m3/h ） 8 Motor voltage （ V ） 220 Work rate （ W ） 1500 Pressure （ Mpa ） 0.8 Pump suction （ m ） 1-3 Dimensions （ cm ） 75*49*65 Weight （ kg ） 90 Application of CLC concrete foam generator TR15 foam generator is specially produced for the use of new products developed and tested by universities, research institutes and other scientific research institutions. It is also suitable for small on-site construction projects of decoration companies, such as bathroom backfilling, ground buffering projects, etc. TR15 foam generator can also be used for small-scale factory production. Foam concrete pro

  Overview of superplasticizer Water reducer  is a concrete admixture, which can improve the workability of concrete, reduce construction energy consumption, and improve construction efficiency. Adding a water-reducing agent to the concrete can disperse the mixed cement particles and optimize the working performance of the cement. While keeping the concrete slump unchanged, the admixture can greatly reduce the unit water consumption of the concrete mixture, reduce the water-cement ratio of the concrete, and improve the strength and stability of the reinforced concrete. Or when the workability and strength of the concrete are the same, adding a water-reducing agent can reduce the unit of cement, thereby saving cement. The superplasticizer  can significantly improve the fluidity of the mixing slurry so that the foam mud can reach self-leveling in the mold and reduce or even no bread. It can greatly reduce water consumption while maintaining the slump of concrete. Water reducer is also kn

  What is autoclaved aerated concrete block? Autoclaved aerated concrete block is made of fly ash, lime, cement, gypsum, slag, etc. as the main raw materials, adding appropriate amount of gas generating agent, regulator, bubble stabilizer, mixing, pouring, static stop, cutting and high pressure. A porous concrete product made by steam curing and other processes. Features   of  Autoclaved aerated concrete blocks The unit volume weight of autoclaved aerated concrete block is one third of that of clay bricks, its thermal insulation performance is 3-4 times that of clay bricks, its sound insulation performance is twice that of clay bricks, and its impermeability is more than twice that of clay bricks. , The fire resistance is 6-8 times that of reinforced concrete. The masonry strength of the block is about 80% of the strength of the block itself (30% for the red brick). Product advantages The construction characteristics of autoclaved aerated concrete blocks are also very good. It can not