AlSi12 Powder

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AlSi12 Powder

Product AlSi12 Powder
CAS No. 11145-27-0
Appearance Silvery-Gray Powder
Purity ≥99%,  ≥99.9%,  ≥95%(Other purities are also available)
APS 1-5 µM, 10-53 µM  (Can be customized),  Ask for other available size range.
Ingredient Al88Si12
Density 2.7g/cm3
Molecular Weight N/A
Product Codes NCZ-DCY-193/25

AlSi12 Description:

AlSi12 Powder is one of the numerous advanced ceramic materials manufactured by Nanochemazone. Nanochemazone produces too many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information are available. Please request a quote above for more information on lead time and pricing

AlSi12 Powder Related Information :

Storage Conditions:

Airtight sealed, avoid light and keep dry at room temperature.

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.

AlSi12 Powder

AlSi12 powder is a fine-grained aluminum-silicon alloy powder commonly used in additive manufacturing processes. It is produced by atomization, which involves melting the alloy and rapidly cooling it to form small powder particles. The resulting powder exhibits excellent flowability and can be easily processed using various additive manufacturing techniques such as selective laser melting (SLM) and electron beam melting (EBM)

Overview of AlSi12 Powder

AlSi12 or A413 is an aluminum casting alloy with relatively high silicon content. The addition of 12% silicon results in good wear resistance, low coefficient of thermal expansion, and high thermal conductivity.

Key properties of AlSi12 powder include:

Good strength and hardness

Excellent wear resistance

Good dimensional stability

High thermal conductivity

Good machinability and polishability

Low specific gravity

Available in various particle size distributions

AlSi12 is used for producing cylinder liners, piston rings, rocker arms, connecting rods, parts requiring heat and wear resistance. The powder metallurgy approach enables complex geometries.

Composition of AlSi12 Powder

The typical composition of AlSi12 powder is:

Element Weight %
Aluminum (Al) Balance
Silicon (Si) 11-13%
Copper (Cu) <1%
Magnesium (Mg) <1%
Iron (Fe) <1%
Manganese (Mn) <1%
Zinc (Zn) <1%
Nickel (Ni) <0.5%

Properties of AlSi12 Powder

AlSi12 powder possesses the following properties:

Property Value
Density 2.7 g/cc
Melting Point 560°C
Thermal Conductivity 150-180 W/mK
Electrical Resistivity 4-6 μΩ.cm
Young’s Modulus 80-90 GPa
Poisson’s Ratio 0.33
Tensile Strength 240-300 MPa
Compressive Strength 600-650 MPa
Elongation 3-5%
Hardness 80-90 Brinell

The silicon additions result in higher strength, hardness, wear resistance, and thermal conductivity compared to unalloyed aluminum. The material retains good ductility and machinability.

Production Method for AlSi12 Powder

AlSi12 powder is manufactured by:

Gas Atomization – High pressure inert gas jets atomize molten AlSi12 alloy to form spherical powders. This produces powder with smooth morphology and narrow size distribution suitable for AM.

Water Atomization – High velocity water jets hit the molten metal stream to produce fine irregular AlSi12 particles. Lower cost but higher oxygen pickup.

Mechanical Milling – Ball milling of aluminum and silicon powders followed by blending, compacting and sintering. Leads to wide size distribution.

Gas atomization is preferred when spherical powder with controlled characteristics is required such as for additive manufacturing or MIM. Mechanical milling route is lower cost.

Applications of AlSi12 Powder

Key applications of AlSi12 alloy powder include:

Additive Manufacturing – Used to fabricate complex metal parts by selective laser melting, direct metal laser sintering, binder jetting etc.

Powder Metallurgy – Compacting and sintering to create high performance parts like piston rings, pump components, rocker arms.

Metal Injection Molding – Produces intricate components with excellent properties and surface finish.

Wear Resistant Coatings – Applied via thermal spray methods on cylinder bores, piston skirts, engine blocks.

Brazing Filler – For joining aluminum and steel components in automotive, aerospace applications.

Friction Materials – High silicon content improves friction performance. Used in brake pads, clutch discs.

Casting – Added to aluminum melts to improve castability and wear resistance.

Specifications of AlSi12 Powder

AlSi12 powder is available in different size ranges, grades and purity levels:

Particle Size: From 10 – 150 microns for AM, under 45 microns for MIM feedstock.

Morphology: Spherical, irregular and mixed shapes. Spherical improves flow and packing.

Purity: From commercial to high purity grades based on elemental analysis.

Oxygen Content: Levels range from 300 – 1000 ppm for gas atomized, higher for water atomized.

Grades: Customized composition and powder characteristics based on application.

Surface Area: For nanoscale powder surface area reaches up to 10 m2/g.

Handling and Storage of AlSi12 Powder

AlSi12 powder should be stored and handled carefully to avoid:

Contact with moisture – leads to oxidation. Store in sealed containers with desiccant bags.

Agglomeration – prevents flow. Store cool, dry powder and consider addition of flow agents.

Fire hazards – do not store near ignition sources due to flammability of finely divided metals.

Inhalation – use masks to prevent inhaling fine powders during handling.

Safety data sheet precautions from supplier should be followed.

Proper inert gas glove box techniques recommended when handling reactive aluminum powders.

Testing and Characterization Methods

Key test methods for AlSi12 powder include:

Chemical analysis – ICP and XRF techniques determine composition, purity levels.

Particle size analysis – Carried out as per ASTM B822 using laser diffraction.

Morphology – Scanning electron microscopy reveals shape, surface structure.

Powder flow – Measured by Hall flowmeter as per ASTM B213 standard.

Density – Measured by gas pycnometry or apparent density method.

Microstructure – X-ray diffraction analysis for phases present.

Thorough testing and inspection ensures AlSi12 powder meets application requirements.

Comparison of AlSi12 and AlSi10Mg Powders

AlSi12 and AlSi10Mg are two aluminum alloy powders compared:

Parameter AlSi12 Powder AlSi10Mg Powder
Alloy type Cast alloy Wrought alloy
Si content 11-13% 9-11%
Mg content <1% 0.2-0.5%
Strength Higher Lower
Wear resistance Excellent Good
Corrosion resistance Moderate Excellent
Machineability Very good Moderate
Applications Wear parts, thermal management Aerospace, marine parts
Cost Lower Higher

AlSi12 provides the best combination of wear properties, machinability and low cost whereas AlSi10Mg offers higher strength and corrosion resistance required for critical structural parts.

AlSi12 Powder FAQs

Q: How is AlSi12 powder produced?

A: AlSi12 powder is commercially produced by gas atomization and water atomization of the molten alloy. Mechanical milling is also used to make this powder.

Q: What is AlSi12 powder used for?

A: AlSi12 finds use in additive manufacturing, powder metallurgy parts production, thermal spray coatings, metal injection molding, and other applications needing a lightweight alloy with good wear properties and machinability.

Q: What is the typical particle size for AlSi12 powder in AM?

A: For most binder jet and powder bed fusion AM processes, the ideal particle size range for AlSi12 powder is 20-65 microns with good powder flow characteristics.

Q: Does AlSi12 powder require special handling precautions?

A: Yes, it is recommended to handle aluminum powders under inert conditions and avoid accumulation of fine powder to minimize fire and explosion hazards. Proper ventilation and PPE should be used.

Q: Where can I purchase AlSi12 powder for making wear-resistant coatings?

A: Specialty AlSi12 grades suitable for thermal spray coatings can be purchased from leading supplier

Description

Description
Note: For pricing & ordering information, please get in touch with us at sales@nanochemazone.com
Please contact us for quotes on Larger Quantities and customization. E-mail: contact@nanochemazone.com

Customization:
If you are planning to order large quantities for your industrial and academic needs, please note that customization of parameters (such as size, length, purity, functionalities, etc.) is available upon request.

NOTE:
Images, pictures, colors, particle sizes, purity, packing, descriptions, and specifications for the real and actual goods may differ. These are only used on the website for the purposes of reference, advertising, and portrayal. Please contact us via email at sales@nanochemazone.com or by phone at (+1 780 612 4177) if you have any questions.

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