It is believed that the fining of alumina and the crystalline defects introduced by the milling are the main reason for the promotion to the carbothermal reduction.

• 研究了机械力活化促进氧化铝碳热还原反应的原因，认为球磨促进碳热还原反应的主要原因是晶粒细化和球磨引入的缺陷，而颗粒细化及氧化铝与碳粉的均匀混合不是主要原因。