Amorphous Graphite Powder

Amorphous Graphite descriptions

Amorphous graphite is the least valuable but most abundant form of graphite and makes up around 60% of the graphite market. Amorphous graphite is a seam mineral and is typically higher in ash than other forms of natural graphite. As it is often associated with and formed within coal seams which are not graphitic, Amorphous graphite is difficult to separate from the coal and usually results in a lower quality and lower priced product. Amorphous graphite contains 70-90% carbon and is used in many lubricant products especially greases, forging lubricants, etc. In applications where higher ash content is acceptable or preferred, Amorphous graphite is a good choice.

Graphite is an important industrial mineral. Graphite is an excellent conductor of heat and electricity, and has the highest natural strength and stiffness of any material. At the same time, graphite is one of the lightest of all reinforcing agents and has high natural lubricity, making it especially valuable to the steel and automotive industries.

Graphite exhibits the properties of a metal and a nonmetal, which makes graphite suitable for many industrial applications. The metallic properties include thermal and electrical conductivity. The nonmetallic properties include inertness, high thermal resistance, and lubricity. The combination of conductivity and high thermal stability allows graphite to be used in many applications such as refractories, batteries, and fuel cells. Lubricity and thermal conductivity make graphite an excellent material for high-temperature applications, because it results in a material that provides effective lubrication at a friction interface while furnishing a thermally conductive matrix to remove heat from the same interface. Lubricity and electrical conductivity allow its use as the primary material in the manufacture of brushes for electric motors. A graphite carbon brush effectively transfers electric current to a rotating armature while the natural lubricity of the brush minimizes frictional wear.