Properties and classification of graphite


Crystalline graphite ore can also be divided into flake and dense. Flaky graphite ore is well crystallized, with a crystal particle size greater than one μ m. Generally, it is 0.05~1.5mm, and the large one can reach 5~10mm, mainly in an aggregate. High-quality, large-scale Graphite is essential for producing graphene and expanded Graphite. It plays a significant role in the future development of the emerging graphite industry (or the result of products made). Large-scale Graphite is distributed in Heilongjiang, Inner Mongolia, Shandong, Hubei, and other places in China. Dense crystalline Graphite, also known as block graphite, has a high grade, typically containing 60% to 65% carbon and sometimes 80% to 98% carbon. However, its plasticity and lubricity are not as good as flake graphite. Amorphous Graphite, also known as amorphous Graphite, is characterized by its earthy surface, lack of gloss, and slightly worse lubricity than flake graphite. Its grade is relatively high, generally 60% to 80%, with a few reaching over 90%; The ash content is 15% to 22%; the Volatile content is 1% to 2%; The moisture content is 2% to 7%. With the continuous progress of science and technology, the purification technology of Graphite will improve, and the application of aphanitic Graphite will become more and more widespread. Graphite has a wide range of uses, which is significantly related to the internal structure of Graphite. Graphite is a crystalline carbon with a layered hexagonal structure. The force between layers is small, and the spacing is large, which is prone to slippage. Therefore, Graphite has a low hardness, lubricity, and plasticity. In addition, in the graphite structure, each C atom forms only three covalent bonds with other C atoms, while each primary C atom still retains one free electron to transport electric charges. Therefore, Graphite has electrical conductivity. Thermal conductivity depends on the intensity of free electron motion. If you are looking for high quality, high purity and cost-effective graphite, or if you require the latest price of graphite, please feel free to email contact mis-asia.


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