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 aluminum, silicon and metals. 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-polluting and harmless to humans. 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 coefficient of thermal contraction (CTE) of aluminum alloys high in silicon 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, high stiffness and specific strength, excellent plating performance for gold, silver and copper, weldable substrates, precision machining, and easy precision machining. This material is ideal for Electronic Packaging, particularly in high-tech areas such as aerospace and space technology. We are the leading Silicon Al Alloy Powder supplier in the world. 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 preforms of silicon powders. This will promote penetration, wetting and recombination. It is usual to first prepare the prefabricated reinforcements of silicon particles and then to cast the permeable materials.
(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
This is also known as rapid cooling. By increasing the cooling rate of solidification, you can increase the solidification degree, and speed.

Application for Silicon Aluminum Alloy Powder Si-Al:
1) High power integrated circuit packaging : high silicon aluminum alloy for 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 variety of advantages, such as low specific weight, lightness, thermal conductivity, low thermal coefficient, volume stability, wear resistance, corrosion resistance and more. They are widely used for cylinder sleeves 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. 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, 1kg/bag and 25kg/barrel.
Once payment has been received, the powder can be shipped by air, by sea or by express.