MANUFACTURING OF SILICON INGOT BY METALLURGIC CASTING
Manufacturing of the high-purity solar grade (SOG) silicon ingot was carried out with the method of metallurgic casting— vacuum induction melting and directional solidification technology. The purification efficiency and the distribution of various impurity elements were studied under different experimental conditions. Technological parameters were optimized to change the growth condition of crystalline, the morphology and growth rate of multi-crystalline silicon were well controlled. Inductively coupled plasma atomic emission spectrometry (ICP) and scanning electron microscope (SEM) were utilized to analyze the silicon ingots. The results indicate that the purity of specimen exceeds 5N and high-purity multi-crystalline silicon ingots were obtained.
metallurgic casting multi-crystalline silicon vacuum induction melting directional solidification
Jian ZHANG Xiaodong MA Zhongtao ZHANG Tingju LI
State Key Laboratory of Materials Modification & School of Materials Science and Engineering, Dalian University of Technology Linggong Road 2 Dalian, 116024, China
国际会议
大连
英文
629-633
2007-08-19（万方平台首次上网日期，不代表论文的发表时间）