About Iron Silicon Alloy Fe-Si Powder:
High-purity iron silicon alloy powder is a binary alloy composed of Iron and Silicon and is a metal-based thermal management material. The high-purity iron silicon alloy material can maintain the excellent performance of Iron and Silicon, and the content of Iron and Silicon is quite rich. The preparation technology of silicon powder is mature, and the cost is low. At the same time, this material does not pollute the environment and is harmless to the human body.
Why is Silicon added to Iron?
When added to Iron, the Silicon makes the metal alloy more fluid without breaking it down at high temperatures. The Silicon lowers the Iron's melting point. The Iron will not experience hot tearing as there is no brittleness.
The density of high-purity iron silicon alloy is between 2.4~2.7 g/cm³, and the coefficient of thermal expansion (CTE) is between 7-20ppm/℃. Increasing the silicon content can significantly reduce the alloy material's density and thermal expansion coefficient. At the same time, the high-purity iron silicon alloy also has good thermal conductivity, high specific strength and stiffness, good plating performance with gold, silver, copper, and nickel, weldable with the substrate, easy precision machining, and other superior performance, is an Electronic packaging material with broad application prospects, especially in high-tech fields such as aerospace, space technology, and portable electronic devices. TRUNNANO is a trusted global Iron Silicon Alloy Fe-Si Powder supplier. Feel free to inquire about the latest price of Iron Silicon Alloy at any time.
How is Iron Silicon Alloy Fe-Si Powder Produced?
Preparation method of iron and silicon alloy:
(1) no pressure infiltration method
The role of carbon steel permeability aids in the air, making the aluminum alloy melt into the Silicon particle prefabricated parts to prepare a composite material method;
(2) pressure infiltration method
By applying an external force, liquid iron metal penetrates the preform of silicon particles to promote the penetration, wetting, and recombination of silicon particles and liquid aluminum metal. The usual steps are to prepare the prefabricated silicon particle reinforcements and cast the absorbent composites.
(3) vacuum hot pressing method
A sintering process in which pressure forming and pressure sintering are carried out simultaneously under vacuum conditions;
(4) powder metallurgy method
A method of making a certain proportion of iron powder, silicon powder, and binder by dry pressing, injection, and other methods to make powder mixing molding, and sintering in a protective atmosphere to obtain a dense material;
(5) Rapid solidification method
Also known as rapid solidification, the solidification degree and solidification speed can be increased by increasing the solidification cooling rate to refine the alloy's microstructure.
Application of Iron Silicon Alloy Fe-Si Powder:
1) High-power integrated circuit packaging: high-purity iron silicon alloy provides effective heat dissipation;
2) Carrier: It can be used as a local heat sink to make the components more closely arranged;
3) Optical frame: high purity iron silicon alloy provides low thermal expansion coefficient, high rigidity, and machinability;
4) Heat sink parts: iron silicon alloy provides effective heat dissipation and structural support.
Application of Iron Silicon Alloy Fe-Si Powder in auto parts:
Iron silicon alloy material (with a silicon content of 20%-35%) has excellent tribological properties. It can be used as an advanced lightweight wear-resistant material in various vehicles, and various types of power machinery, machine tools, special fasteners, And tools have been widely used.
Iron silicon alloy has several advantages, such as small specific weight, lightweight, good thermal conductivity, low thermal expansion coefficient, volume stability, good wear resistance, good corrosion resistance, etc. It is widely used as cylinder sleeves, pistons, rotors of automobile engines, Brake discs, and other materials.
