Stable Ti-based quasicrystal

被引：184

作者：

Kelton, KF ^{[1
]}

Kim, WJ ^{[1
]}

Stroud, RM ^{[1
]}

机构：

[1] WASHINGTON UNIV,DEPT PHYS,ST LOUIS,MO 63130

来源：

APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 24期

关键词：

D O I：

10.1063/1.119133

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The thermal stability of the icosahedral phase (i phase) in Ti45Zr38Ni17 alloys is demonstrated. As-cast alloys containing initially only the C14 hexagonal Laves and alpha-solid-solution phases transformed primarily to the icosahedral phase upon annealing in vacuum for 64 h at 570 degrees C. This confirms previous evidence for i-phase stability and firmly establishes this quasicrystal as the first nonaluminum stable icosahedral phase. Diffraction data show that this stable i phase is primitive; energy dispersive x-ray spectroscopy measurements place its composition near Ti41.5Zr41.5Ni17 These and other results suggest that the structure of this i phase is similar to that of i(AlLiCu). (C) 1997 American Institute of Physics.

引用

页码：3230 / 3232

页数：3

共 11 条

[1]

[Anonymous], 1995, INTERMETALLIC COMPOU

[2] ON THE VARIETY OF ELECTRON-DIFFRACTION PATTERNS FROM QUASICRYSTALS [J].