Hits:

Date of Publication:2013-01-01

Journal:材料工程

Affiliation of Author(s):材料科学与工程学院

Issue:3

Page Number:90-96

ISSN No.:1001-4381

Abstract:Purification polycrystalline silicon by metallurgical method is the only way for our country to escape the dependency of silicon feedstock, and to develop low-cast and environmental friendly process for SOG-Si. Since its emergence, metallurgical method has undergone three research surges. The third development is under the leading and promotion of our country's research and industry workers, obtaining considerable useful scientific theory and practical experience. In this paper, from the definition of metallurgical method, the basic theories of metallurgical method, including saturated vapor pressure principle, segregation mechanism and differences in mechanism of oxidation, are analyzed in detail; moreover, technologies and their progress derived from the mechanisms are presented. At the end, the trend of metallurgical method is forecasted.

Note:新增回溯数据