What is Needle Coke and Why is it Important ?
Needle coke is a high-performance carbon material with a metallic luster and silver-gray color. Its surface texture is fibrous or needle-like, with a slippery feel. It contains small, oval-shaped pores inside. Needle coke consists of large molecular polycyclic aromatic hydrocarbons with flat aromatic layers. It has a graphite-like microcrystalline structure with high unit orientation. The microscopic structure follows the Franklin model and is a typical graphitizable carbon. It is an ideal material for preparing porous carbon. When heated above 2000°C, it forms graphite-like layered structures. Due to its excellent electrical conductivity, thermal conductivity, low thermal expansion, and thermal shock resistance, needle coke is widely used in steelmaking graphite electrodes, aerospace, […]