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Bookmark or Share- What Are Quasicrystals and Why They Are so Important?Unlike the soft crystalline metals, quasicrystal alloys are exceedingly hard and have a high degree of surface slipperiness, motivating the first commercial application of quasicrystals as a cookware coating alternative to Teflon (Gibbons and Kelton 1998).
- 准晶体（介于晶体和非晶体之间的固体）_百度百科准晶体，亦称为“准晶”或“拟晶”，是一种介于 晶体 和 非晶体 之间的固体结构。 在准晶的原子排列中，其结构是长程有序的，这一点和晶体相似；但是准晶不具备平移对称性，这一点又和晶体不同。 普通晶体具有的是二次、三次、四次或六次旋转对称性，但是准晶的布拉格衍射图具有其他的对称性，例如五次对称性或者更高的六次以上对称性。 [1] 物质的构成由其原子排列特点而定。 原子呈周期性排列的固体物质叫做晶体，原子呈无序排列的叫做非晶体，介于这两者之间的叫做准晶体。 准晶体的发现，是20世纪80年代 晶体学 研究中的一次突破。 1982年4月8日，谢赫特曼首次在 电子显微镜 下观察到一种“反常”现象： 铝锰合金 的原子采用一种不重复、非周期性但对称有序的方式排列。
- Quasicrystal - WikipediaPotential energy surface for silver depositing on an aluminium–palladium–manganese (Al–Pd–Mn) quasicrystal surface. Similar to Fig. 6 in Ref. [1] A quasiperiodic crystal, or quasicrystal, is a structure that is ordered but not periodic.A quasicrystalline pattern can continuously fill all available space, but it lacks translational symmetry. [2] ...
- Quasicrystal | Structure, Properties & Applications | BritannicaQuasicrystal, matter formed atomically in a manner somewhere between the amorphous solids of glasses (special forms of metals and other minerals, as well as common glass) and the precise pattern of crystals. Like crystals, quasicrystals contain an ordered structure, but the patterns are subtle and
- Quasicrystals: A New Class of Structurally Complex Intermetallics ...Quasicrystals are considered as a new class of intermetallics with the long-range quasiperiodic ordering, and have attracted research interest over the last 3 decades due to their interesting structural complexities, unique physical/mechanical properties, and potentials for applications.
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