特种石墨用针状焦的研究进展

Research progress of needle coke for special graphite

高强度、高密度、高纯度石墨制品是特种石墨的重要特性,其含碳量高于99%。具有耐高温、耐辐射、润滑性强和易加工等优势,因此特种石墨对原料要求较高。针状焦具有高结晶度、高强度、高石墨化、低热膨胀、低烧蚀等特性,其经石墨化后具有较低的热膨胀系数,在特种石墨领域具有光明的发展前景。

The essential features of special graphite include exceptional strength,remarkable density,and unparalleled purity,which contains more than 99%carbon.The original sentence has been polished to enhance its professionalism:"It possesses the advantages of exceptional heat resistance,outstanding radiation resistance,remarkable lubricity,and effortless processing.",so the special graphite has higher requirements for raw materials.Needle coke possesses high crystallinity,strength,and graphitization as well as low thermal expansion and ablation.Following graphitization,it exhibits a low thermal expansion coefficient,making it highly promising in the realm of special graphite.