STRUCTURE OF STABLE INTERMETALLIC COMPOUNDS OF THE Al-Li-Cu-(Mg) AND Al-Li-Zn-(Cu) SYSTEMS
نویسندگان
چکیده
The results of a thorough structural study of crystalline intermetallic compounds within the Al-Li-(Cu,Mg,Zn) system are given. Characteristic morphologies of these ternary or quaternary phases are exhibited by concentrated alloys or large single crystals. Typical X-ray powder diffraction data, selected area electron diffraction patterns and high resolution electron microscopy images are shown, allowing unambiguous structure identification of two new intermetallic compounds designated Z and z stable respectively in the Al-Li-Cu-Mg and Al-Li-Zn-(Cu) systems. The latter are found to have common structural features with the R-AJsCuLi3 and T-(AI,Zn)2Li isomorphous phases.
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