Theoretical derivation of the crystallographic parameters of polytypes of long-period stacking ordered structures with the period of 13 and 14 in hexagonal close-packed system

• 来源期刊: 中国物理B（英文版）
• 关键词: magnesium alloy LPSO phase theoretical derivation
• 年，卷（期）: 2018,（9）
• 页码范围: 465-475
• 页数: 11页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/9/096102

摘要

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.