High-silicon Aluminum Alloy is a binary alloy composed of silicon, aluminum, and other elements. It is an alloy that is used primarily in space technology, aerospace and portable electronics.

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 material. High-silicon aluminum material is able to maintain excellent performance and has a high 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 alloy high in silicon is between 7-20ppm/. By increasing the silicon percentage, the density of the material and its thermal expansion coefficient will be significantly reduced. High-silicon Aluminum Alloy has excellent properties such as high thermal conductivity, good specific strength and stiffness and good plating performances with gold and silver. Also, it is weldable and can be used with substrates. 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 and recombination. 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 specific proportion of silicon powder, aluminum powder and binders by dry pressing or injection.
(5) Rapid solidification method
Increasing the cooling rate of solidification can increase the solidification speed and the degree of solidification. This will improve the microstructure of an alloy.

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.
4) Heat sinks : 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 qualities and is widely used for various vehicles, machines, tools, fasteners, and other 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, pistons of automobiles and other materials.

Storage condition of Silicon Aluminium Alloy Powder Si-Al:
Si-Al powder will not perform well if it is exposed to damp conditions. Therefore, the silicon aluminium alloy powder must be packed in vacuum bags and kept 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, sea, or express.

Silicon Alumium Alloy Powder Properties
Alternative Names	AlSi, SiAl, Si:Al, silicon aluminum, Si-Al Powder
CAS Number	11145-27-0
Compound Formula	Si-Al
Molecular Mass	N/A
Appearance	Gray to Black Powder
Melting Point	600-760
Boiling Point	N/A
Density	2.7 g/cm3
Solubility In H2O	Insoluble
Monoisotopic Mash	54.958 g/mol
Safety and health information about Silicon Alumium Alloy Poudre
Sign Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Statements	N/A
Transport Information	NONH for All Transport Modes

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