What is aluminum carbide powder?

Aluminum is the most abundant metal element in the earth's crust. Because of its lightweight and good formability, it is widely used in the industry. However, aluminum and its alloys are faced with the development problems of low strength, poor wear resistance, and high-temperature performance. Aluminum carbide (AlC) is an ionic compound with a rhomboid hexahedron structure. Its high hardness, shear strength, and melting point make it an ideal second-phase strengthening material for aluminum-based materials. Aluminum carbide hexagonal sheet crystal.Relative density 2.36, stable at 1400℃, decomposition above 2200℃.Decompose methane in water, stored in dry and cool place, insoluble in acetone, dilute acid decomposition. It is made of pure aluminum powder and pure carbon. At present, the preparation methods of aluminum carbide mainly include the direct metal carbonization method, carbothermal reduction method, sol-gel method, microwave synthesis method, and high energy mechanical ball grinding method. Among them, direct metal carbonization and carbothermal reduction are the earliest synthetic methods, and some of them have been used in industrial production. However, the disadvantages of these two methods are that the synthesis temperature is high, the reaction time is long, and the powder particle size is large. In the known high-energy ball running-in method, the focus is mainly on the in-situ synthesis of a small amount of AlC to enhance the aluminum base material, rather than the high purity synthesis of AlC. At the same time, high energy ball mill itself has the ball grinding time is too long, high energy consumption, powder particles are not uniform and other shortcomings.

Aluminum Carbide Al4C3 Powder CAS 1299-86-1
The preparation methods
By alumina and coke in the electric furnace heating.
Aluminum carbide Al4C3 is prepared by a direct combination of two elemental materials at high temperatures.
A mixture of one part heavy smoke black and six parts heavy aluminum powder was prepared, moistened with pine essential oil, placed in a tight layer in a clay crucible, and covered with toner. The cauldron should be covered and all gaps covered with refractory soil mixed with asbestos fibers. Then, the crucible containing the mixture was placed in an oven for pre-drying, and the mixture was burned at a temperature of not less than 1200℃ for 30 minutes. The reaction proceeds better at a higher temperature. After cooling, the product is treated with dilute hydrochloric acid (or an alkaline solution) while it is cool to remove excess aluminum. The aluminum carbide prepared as a fine crystalline powder is washed with water to remove aluminum chloride, then quickly washed with alcohol, and the product is placed in a drying oven at 80 ~ 90℃ for drying. The product contains a large amount of aluminum nitride.
Pure aluminum carbide is colorless, but products made by this process often have different colors due to impurities in the raw material.
When calcined in hydrogen with a mixture of calculated amounts of aluminum and smoke black, pure products without aluminum nitride can be obtained. This calcination takes place at 1800 ~ 1900℃ for 2 ~ 3 hours. The prepared product is ground and calcined again at the above temperature.
Aluminum carbide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Aluminum carbide produced by our company has high purity, fine particle size, and impurity content. Send us an email or click on the needed products to send an inquiry.

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