Carbide powder

Aluminum Carbide Al4C3 Powder CAS 1299-86-1

Item No.: Tr-Al4C3
Aluminum carbide is a green-gray powder with a molecular formula of Al4C3, which is used in metallurgy and catalysts.
Particle Size: -325mesh
Purity: 99%
Aluminum Carbide Properties
 About Aluminum Carbide Al4C3 Powder: 
Aluminum carbide is an inorganic compound. Aluminum carbide formula is Al4C3. Yellow or green-gray crystal block or powder, hygroscopic. It decomposes at high temperatures and decomposes into methane and aluminum hydroxide in cold water. Al4C3 has a hexagonal crystal structure.
Aluminum carbide with the chemical formula Al4C3 is a carbide of aluminum. It has the appearance of light yellow to brown crystals. Stable at temperatures up to 1400°C. It decomposes in water to produce methane.
Aluminum carbide has an unusual crystal structure composed of alternating Al2C and Al2C2 layers. Each aluminum atom is coordinated into 4 carbon atoms to form a tetrahedral arrangement. Carbon atoms exist in two different binding environments. One is a deformed octahedron with 6 Al atoms at 217 pm. The other is a twisted triangular bipyramid structure with 4 Al atoms at 190-194 pm and a fifth Al atom at 221 pm.
A small amount of aluminum carbide is a common impurity in industrial calcium carbide. In the electrolytic manufacture of aluminum, aluminum carbide is formed as a corrosion product of graphite electrodes.
In metal matrix composites based on an aluminum matrix reinforced with non-metal carbides (silicon carbide, boron carbide, etc.) or carbon fibers, aluminum carbide is usually formed as an undesirable product. For carbon fiber, it will react with the aluminum matrix at a temperature higher than 500°C; better fiber wettability and chemical reaction inhibition can be achieved by coating the fiber with calcium carbonate, for example.
Aluminum carbide is usually available immediately in most quantities. Carbides are compounds in which the anion is one or more carbon atoms. Although not all, most metals form carbides: for example, indium and gallium do not. Like diamonds (a pure carbon substance), carbides tend to be very hard, fire-resistant and resistant to abrasion, corrosion, and heat resistance, making them excellent candidates for coatings on drill bits and other tools. They usually combine toughness with other valuable properties such as electrical conductivity, low thermal expansion and wear resistance.

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How is Aluminum Carbide Al4C3 Powder produced?
Aluminum carbide is prepared by the direct reaction of aluminum and carbon in an electric arc furnace.
4 Al + 3 C→Al4C3
The other reaction starts with alumina, but it is not very advantageous due to the production of carbon monoxide.
2 Al2O3 + 9 C→Al4C3 + 6 CO
Silicon carbide also reacts with aluminum to form Al4C3. This conversion limits the mechanical applications of SiC because Al4C3 is more brittle than SiC.
4 Al + 3 SiC→Al4C3 + 3 Si
In aluminum matrix composites reinforced with silicon carbide, the chemical reaction between silicon carbide and molten aluminum creates a layer of aluminum carbide on the silicon carbide particles, which reduces the strength of the material, although it increases the wettability of the SiC particles. This tendency can be reduced by coating silicon carbide particles with a suitable oxide or nitride, pre-oxidizing the particles to form a silicon dioxide coating, or using a sacrificial metal layer.
Aluminum-aluminum carbide composite materials can be made by mechanical alloying and mixing aluminum powder and graphite particles.

Technical Parameter of Aluminum Carbide Al4C3 Powder :
    Code             Chemical Composition
    Al     C    Si       P     S      Fe       Mg   
Al4C3 79-81 19-21 0.20 0.03 0.03 0.20 0.5
Particle Size -60 mesh, -325 mesh or as customers' requirment

Application of Aluminum Carbide Al4C3 Powder :
Aluminum carbide is used in metallurgy, catalyst and methane production. In addition, typical applications of aluminum carbide include:
1. The finely dispersed aluminum carbide particles in the aluminum matrix reduce the tendency of the material to creep, especially when combined with silicon carbide particles.
2. Aluminum-aluminum carbide composite materials can be made by mechanical alloying, grinding aluminum powder and graphite particles together.
3. Aluminum carbide can be used as an abrasive in high-speed cutting tools. Its hardness is almost the same as that of topaz.
4. Aluminum carbide is also used in fireworks, for example, to achieve the effect of fireflies.

Storage Condition of Aluminum Carbide Al4C3 Powder :
Aluminum Carbide Al4C3 Powder dispersion performance and using effects, therefore, titanium tin carbide Ti2SnC powder should be sealed in vacuum packing and stored in cool and dry room, the titanium tin carbide can not be exposure to air. In addition, the Ti2SnC powder should be avoided under stress.

Packing & Shipping of Aluminum Carbide Al4C3 Powder :
We have many different kinds of packing which depends on the titanium tin carbide Ti2SnC powder quantity.
Aluminum Carbide Al4C3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Aluminum Carbide Al4C3 Powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

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Aluminum Carbide Properties

Other Names aluminum carbide, Al4C3 powder, cas 1299-86-1
CAS No. 1299-86-1
Compound Formula Al4C3
Molecular Weight 143.96
Appearance Gray Black Powder
Melting Point 2200 °C
Boiling Point 1400 °C
Density 2.36 g/cm3
Solubility in H2O Decomposes
Specific Heat 116.8 J/mol·K
Exact Mass 143.926154

Aluminum Carbide Health & Safety Information

Signal Word Danger
Hazard Statements H261-H315-H319-H335
Hazard Codes F, Xi
Risk Codes 15-36/37/38
Safety Statements 26-43
Transport Information N/A
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