论文部分内容阅读
印度B habha原子能研究中心的Tapatee K unduR oy等人用含氧量为1.09w%的铌粉对铌的高温真空自耗脱氧和碳脱氧进行了研究。实验用纯度为99%的石墨作为碳添加剂,按C/O(摩尔比,下同)分别为0,0.25,0.5,0.75,1.0和1.1进行配料。试样放入钨坩埚,在2×10-3Pa真空度下以20K/m in的升温
Tapatee K unduR oy et al. At B habha Atomic Energy Research Center in India studied the high-temperature vacuum deoxidation and carbon deoxidation of niobium with niobium powder containing 1.09 w% oxygen. Experimental 99% purity graphite as a carbon additive, according to C / O (molar ratio, the same below) were 0,0.25,0.5,0.75,1.0 and 1.1 ingredients. The sample was placed in a tungsten crucible and heated at 20 K / min in a vacuum of 2 × 10 -3 Pa