论文部分内容阅读
Based on crystallographic theory,there are 63 kinds of polytypes of 13H long-period stacking order(LPSO)structure,126 kinds of polytypes of 14H LPSO structure,120 kinds of polytypes of 39R LPSO structure,and 223 kinds of polytypes of 42R LPSO structure in a hexagonal close-packed(HCP)system,and their stacking sequences and space groups have been derived in detail.The result provides a theoretical explanation for the various polytypes of the LPSO structure.