Pauling L
Linus Pauling Institute of Science and Medicine, Palo Alto, CA 94306, USA.
Proc Natl Acad Sci U S A. 1990 Oct;87(20):7849-50. doi: 10.1073/pnas.87.20.7849.
An analysis of electron micrographs of Al5Mn quasicrystals obtained by rapidly cooling a molten alloy with composition Al17Mn and removing the Al matrix by electrosolution, revealing aggregates of 20 microcrystals at the corners of a pentagonal dodecahedron, supports the proposal that these microcrystals are cubic crystals twinned about an icosahedral seed, with each cubic microcrystal sharing a threefold axis and three symmetry planes with the seed.
通过快速冷却成分Al17Mn的熔融合金并用电解法去除铝基体获得的Al5Mn准晶体的电子显微镜照片分析显示，在五角十二面体的角上有20个微晶的聚集体，这支持了这样的提议，即这些微晶是围绕二十面体晶核孪晶的立方晶体，每个立方微晶与晶核共享一个三重轴和三个对称面。
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