陆跃华
,
刘纯鹏
金属学报
在1150—1250℃的范围内研究了Cu_2S与Cu_20交互反应的动力学,反应速率随Cu_2O颗粒表面积的增加而增加,温度的影响不明显。假设氧通过反应边界层液膜中的扩散是交互反应速率的控制步骤,最终动力学方程为 α=6.69×10~(-2)At (0<α<0.74) In(1-α)=-A(9.83×10~(-2)t+1.76)(0.74<α<1)
关键词:
Cu_2O
,
Cu_2S
,
interaction
,
kinetics
,
null
项利
,
岳尔斌
,
仇圣桃
,
赵沛
钢铁
研究了Cu_2S抑制剂在薄板坯连铸连轧流程生产取向硅钢全流程中的析出特点.结果表明:典型成分取向硅钢主抑制剂Cu_2S在全工序进程中析出粒子呈不断长大的趋势,粒子分布密度与体积分数在高温退火前也不断增加,高温退火净化后,剩余粒子变大,分布密度大大降低,对应体积分数也降低.
关键词:
取向硅钢
,
薄板坯连铸连轧
,
抑制剂
,
Cu_2S
,
析出
LU Yuehua Kunming Institute of Precious Metals
,
Kunming
,
ChinaLIU Chunpeng Kunming Institute of Technology
,
Kunming
,
China Research Assistant
,
Laboratory No.1
,
Kunming Institute of Precious Metals
,
Kunming 650031
,
China
金属学报(英文版)
Reaction between Cu_2S and Cu_2O was investigated at 1150 to 1250℃.The reaction rate in- creases with the increase of surface area of Cu_2O grains and depends unobviously on temper- ature.At the suggestion of controlling step of reaction rate being oxygen diffusion through the liquid layer along reaction boundaries,two final kinetical equations would be made as follows: x=6.69×10~(-2)At for 0<α<0.74 and ln(l-α)=-A(9.83×10~(-2)t+1.76)for 0.74<α<1,where α is SO_2 evolved in time t and A is surface area of Cu_2O particles.
关键词:
Cu_2O
,
null
,
null
