High Purity Silicon Aluminum Alloy Si-Al Powder

About Silicon-Aluminum Alloy SiAl Powder The high-silicon-aluminum alloy powder is an alloy binary composed of silicon-based and aluminum-based metals and is used as a thermal management product. The high-silicon aluminium alloy material is able to maintain the excellent performance and content of aluminum and silicon. Silicon powder can be prepared with a mature technology at a low price. The material is non-toxic to humans and the environment. What is the purpose of adding silicon to aluminum?
Addition of silicon to aluminum results in a more fluid metal alloy, without the metal breaking down at high temperature. The silicon lowers the melting point of aluminum. As there is no brittleness, the aluminum will not suffer from hot tearing.
The density of aluminum alloys with high silicon content is between 2.42.7g/cm3, while the coefficient thermal expansion (CTE), is between 7-20ppm. The alloy density and thermal coefficient can be significantly reduced by increasing silicon content. High-silicon Aluminum Alloy has many other advantages, including good thermal conductivity, good specific strength and stiffness. It can also be plated with gold or silver, copper or nickel. is a global Silicon Al Alloy Powder supplier. Please feel free to contact us at any time for the latest Silicon Aluminum Alloy price.

What is Silicon Aluminum Alloy Si Al powder ?
Preparation of silicon and aluminium alloy
(1) no pressure infiltration method
To prepare composite materials, melt the aluminum alloy into the silicon prefabricated part to help with the permeability of carbon steel in the air.
(2) pressure-infiltration method
Applying an external force causes liquid aluminum to penetrate into the silicon preform. This will promote penetration, wetting, recombination, and the recombined of liquid aluminum and the silicon particles. The normal procedure is to first prepare the prefabricated reinforcements of silicon particles and then cast the composites permeable.
(3) vacuum hot pressing method
Pressure forming and pressure silting are carried out simultaneously in vacuum conditions.
(4) Method of powder metallurgy
The method for making a mixture of silicon powder, aluminum powder and binder using injection, dry pressing and other methods, then sintering it in a protected atmosphere to get a dense product;
(5) Rapid solidification method
By increasing the solidification cooling speed, you can improve the microstructure and increase the solidification rate.

Application for Silicon Aluminum Alloy Powder Si-Al:
High-power packaging for integrated circuits: aluminum alloy with high-silicon provides efficient heat dissipation.
2) Carrier : It can act as a localized heat sink, allowing the components to be arranged more closely.
3) Optical Frame: Aluminum alloy high-silicon provides low thermal coefficient, high rigidity, and machinability.
Heat sink parts: the high-silicon aluminum alloy is effective at dissipating heat and providing structural support.
Silicon Aluminum Alloy Si Al powder in automotive parts
This high-silicon aluminum alloy (with a silica content of 20-35%) has excellent tribological characteristics and can be widely used as a lightweight, wear-resistant advanced material for various transportation vehicles, machines, tools, fasteners, and tools.
High-silicon aluminium alloys have a number of advantages including small specific weights, lightness, good thermal conductivity with low thermal expansion coefficients, volume stability, wear resistance and corrosion resistance. They are widely used for cylinder sleeves, brake discs, and pistons in automobile engines.

Storage condition of Silicon Aluminium Alloy Powder Si-Al:
Si-Al powder will not perform well if it is exposed to damp air. Therefore, you should store the silicon aluminum powder in a dry and cool room. It is also important to avoid putting the silicon alloy powder under pressure.

Packing & Shipping Silicon Aluminium Alloy Powder Si-Al Powder :
The packing we use depends on the amount of Si-Al alloy powder.
Silicon Aluminum Alloy Si-Al Powder Packing: Vacuum packing, 100g/bag, 500g/bag, or 1kg/bag. 25kg/barrel.
Once payment has been received, the powder can be shipped by air, sea, or express.