期刊
MATERIALS TRANSACTIONS
卷 45, 期 4, 页码 1255-1260出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.45.1255
关键词
quasicrystal; phason strain; phonion strain; decagonal phase; aluminum nickel cobalt alloy; synchrotron X-ray diffraction
Peak broadening and peak shifts of Bragg reflections were studied with the synchrotron single-crystal X-ray diffraction method for an Al72.7Ni8.5Co18.8 decagonal quasicrystal classified as the 5f state. From the Q(perpendicular to) and Q(parallel to) dependences of the full width of half maximum (FWHM) of the Bragg reflections along the longitudinal direction, the coexistence of random phason strains with phonon strains was observed. High-resolution synchrotron X-ray measurements Could present quantitative estimations of these strains. The value of the random phason strain component is 0.0054 similar to tau(-11). The asymmetrical broadening due to the phonon strain shows that the single crystal may be constructed with two kinds of grains that have A(5D) values of 0.6273 and 0.6265 nm.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据