| 准晶的晶体学特征 |
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| 引用本文： | 郭可信.准晶的晶体学特征[J].化学进展,1994,6(4):266-279. |
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| 作者姓名： | 郭可信 |
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| 作者单位： | （中国科学院北京电子显微镜实验室 北京 100080） |
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| 摘 要： | 10年前，具有五次旋转对称而无平移周期序的准晶问世，在与晶体及晶体学有关的学科领域里引起强烈反响。10年来的系统研究澄清了准晶晶体学中的一些问题，如(1)准晶还是五重孪晶? (2)为什么要有五次旋转对称? (3)为什么会有准周期性? (4)稳定的准晶存在吗? (5)准晶与近似晶体相有什么异同?
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| 关 键 词： | 准晶 五重孪晶 准周期性 近似晶体相 五次旋转对称 |
Crystallographic Features of Quasicrystals |
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| Guo Kexin.Crystallographic Features of Quasicrystals[J].Progress in Chemistry,1994,6(4):266-279. |
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| Authors: | Guo Kexin |
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| Institution: | (Beijing Laboratory of Electron Microscopy, Academia Sinica, Beijing 100080) |
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| Abstract: | The sensational discovery of quasicrystals with fivefold rotational symmetry and no periodic translation order ten years ago made a strong impact to all solid state sciences based on crystals and crystallography, comprising metallurgy, materials science,chemistry,physics, mineralogy,etc. After a decennium of intensive study,many important aspects of this new class of materials and a new kind of ordered state with the so-called "forbidden" symmetry and quasiperiodicity have been made clear. Time is perhaps ripen to review the main advances of quasicrystal research made in the past ten years. The topics discussed in the present review arc:(1)quasicrystal or five-fold twins? (2)why fivefold symmetry? (3)why quasiperiodicity?(9 ) stable quasicrystals;(5)crystalline approximants. |
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| Keywords: | quasicrystal fivefold twins quasiperiodicity crystalline approximants fivefoldsymmetry |
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