论文信息 - Free volumes in the quasicrystalline decagonal Al-Cu-Co phase and in the adjacent crystalline phases studied by positron lifetime measurements

Free volumes in the quasicrystalline decagonal Al-Cu-Co phase and in the adjacent crystalline phases studied by positron lifetime measurements

Abstract Vacancy-type volumes have been studied in the Al-Cu-Co decagonal quasicrystalline phase as well as in the neighbouring crystalline compounds of CsCl, Al3Ni2, and Al13Co4 type by means of positron lifetime measurements. In the decagonal phase, larger free volumes appear than in the crystalline phases of adjacent compositions. The free volumes are discussed in terms of structural vacancies of the intermetallic compounds studied.

H. Schaefer | B. Grushko | K. Urban | Roland Würschum

[1] B. Grushko,et al. The structure of the (Al, Cu)13Co4 phase with different Cu content , 1994 .

[2] B. Grushko,et al. Investigation of the Al-Cu-Co decagonal phase with a low copper content , 1993 .

[3] H. Schaefer,et al. Preparation and positron lifetime spectroscopy of nanocrystalline metals , 1993 .

[4] B. Grushko. The composition of the decagonal quasicrystalline phase in the Al–Cu–Co alloy system , 1992 .

[5] Liu,et al. Positron-annihilation studies of a decagonal single quasicrystal of Al70Ni15Co15. , 1992, Physical review. B, Condensed matter.

[6] H. Schaefer,et al. Thermal Formation of Vacancies in Intermetallic Compounds , 1992 .

[7] B. Grushko,et al. An Al3Ni2-type phase in the AlCuCo system , 1991 .

[8] W. Steurer,et al. Five-dimensional structure analysis of decagonal Al65Cu20Co15 , 1990 .

[9] H. Schaefer. Investigation of Thermal Equilibrium Vacancies in Metals by Positron Annihilation , 1987 .

[10] R. Nieminen,et al. CORRIGENDUM: Defect spectroscopy with positrons: a general calculational method , 1983 .

[11] P. Hautojärvi,et al. Positrons in Solids , 1979 .

[12] R. Nieminen,et al. Positrons in Imperfect Solids: Theory , 1979 .