准晶体

MB25镁合金中的准晶体与晶体相的研究

Study of the Quasicrystal and Crystal Phases in the MB 25 Magnesium Alloy

准晶体结构的分数维特征

Fractal characteristics of quasicrystal structures

准晶共轭结构模型可以很好地解释Al-Mn准晶体的电子显微镜高分辨结构图以及Penrose拼图与准晶体的电子显微镜高分辨结构图的密切关系。

The conjugate structure model well explains not only the high resolution structure image of Al - Mn quasicrystal , but also the close relationship between the Penrose pattern and the latter .

根据强化偶极子模型推导出一个新的混合体有效介电常数的计算公式，并和Maxwell-Garnett，迭代技术模型，以及具有相干势的准晶体近似模型的计算结果作了比较。

This paper presents a kind of dipole-enhanced model for calculating the effective permittivity of a dielectric mixture . The effective permittivities calculated with this formula are compared with those obtained with Maxwell-Garnett model , iterative model , and the coherent potential-quasicrystalline approximation .

准晶体分数维结构的键取向序和径向分布函数

Bond Orientation and Radial Distribution Function of Fractional Quasicrystal Structure

长程跳跃对一维准晶体电子性质的影响

The Long-Range-Hopping Effect to the Electronic Properties of 1-D Quasicrystals

孢粉壁准晶体结构研究进展

The research advances of the quasi crystal structure in sporoderm

讨论了准晶体及无公度相的对称特点。

The symmetry characters of quasiperiodic crystals and incommensurable phases were discussed .

准晶体的对称型（点群）和单形

Point gro up s and single forms of quasicrystal

硬脂酸铅薄膜准晶体的生长与性能

Growth and Properties of Lead Stearate Paracrystalline Films

具有8次旋转对称性的二维新准晶体

A New 2D Quasicrystal with Eightfold Rotational Symmetry

准晶体的基本性质

Main characteristics of crystal and quasi crystal

准晶体分数维结构的发现及其在自然观方面的意义

The discovery of fractal-dimension structure in quasicrystal and its significance in the outlook on nature

具此研究了立方准晶体内部存在无限长裂纹的情况。

In the case of cubic quasicrystal with a infinity crack because of the solution before-mentioned .

广义晶体群及其在准晶体电镜研究结果分析中的应用

Generalized Crystal Group and Its Applications in the Analysis of Research Result of Electron Microscopy of Quasicrystal

这个相的选区电子衍射花样显示出准晶体结构的五次对称性。

The selected area diffraction patterns from the phase show a fivefold symmetry of a qua-sierystalline structure .

推导了当考虑热效应时十次对称二维准晶体平面应变问题的通解表示。

The general solution for plane strain problems in decagonal quasicrystals accounting for thermal effect is derived .

1984年准晶体的发现是近年来凝聚态物理的一个重大突破。

The discovery of quasicrystal around 1984 is a significant breakthrough for condensed matter physics in recent years .

舍特曼博士意识到他所发现的是一种新材料，将之取名为准晶体。

What Dr Shechtman had discovered , he realised , was a new sort of material called a quasicrystal .

准晶体（Quasicyrstal）是具有与晶体相似的长程有序的原子排列，但不具备晶体的平移对称性的一种结构。

The quasi-crystals is similar to the crystal long-range ordered atomic arrangement , but do not have the translational symmetry of a crystal structure .

准晶体是1984年在实验中发现的。这种新型的物质引起了科学工作者极大的兴趣，并得到了广泛的研究。

Since the experimental discovery of quasicrystals in 1984 , this new kind of materials has attracted much attention and has been extensively studied .

分形已成功地应用于准晶体微粒结构、断层系统和地质构造分布、多孔介质、地质体表面粗糙度和其他问题研究。

Fractal has been used successfully in the study of impalpable structure of metacrystals , fault systems and geological structure distribution , porous medium , surface roughness of geological bodies and other problems .

准晶体所具有的高硬度、低摩擦系数、低热导率、低电导率、抗氧化、耐腐蚀及特殊的光学性能等，已引起了材料工作者的广泛关注。

Quasicrystal material have aroused many material scientists ' interests because of its remarkable high hardness , low friction coefficient , low thermal conductivity , low electric conductivity , oxidation-resistance , erosion-resistance and special optical property .

这些词代表了准晶体的最简单的族，在诸如数学上有数不清的应用，例如符号动力，连分数展示，物理上的一些领域和计算机科学。这样对Sturmian词的研究就具有重大的意义。

These words , which represent the simplest family of quasicrystals , have numerous applications in various fields of mathematics , such as symbolic dynamics , the study of continued fraction expansion , and also in some domains of physics and computer science .

当她开始起草关于准晶体的论文时，自称漫画迷的她很快意识到她可以通过绘图的方式更好的讲解这些古怪的化合物。准晶体是一种从普通晶体分化出来的子晶体。

The self-described comic book fan said she began drafting her thesis on quasicrystals & a subset of crystals that diverge from the usual structural characteristics of crystals . Berns quickly concluded that she would be best able to describe the oddball compounds with illustrations .

考虑一维准晶体制备的杆的纵向波动问题，对声子场和相位子场相耦合的控制方程进行数学变换，得出2个标准的波动方程和4种波速。

A wave problem in the longitudinal direction of a bar made of quasi-crystals is studied . By applying a mathematical transform to the coupling control equations about the phonon field and phason field , two standard wave equations and four speeds of wave are founded .

准一维晶体中S3方程的两类解析解

New solutions to the s_3 equation in a quasi-one-dimensional crystal

包层空气孔渐变的准光子晶体光纤的色散特性研究

Dispersion Properties of Photonic Quasicrystal Fibers with an Air Hole Varying Cladding

改进的八重准光子晶体光纤的色散特性研究

Dispersion Properties of Modified Octagon Photonic Quasicrystal Fibers

但是准晶所独有的准周期晶体结构，决定了准晶具有高硬度、高耐热性和低表面能等性质。从而，使其可以用作韧性材料中的增强相。

Whereas , some unique properties of quasicrystal , such as high hardness , heat-resistant and low surface energy due to its unusual quasi-periodic lattice structure , which quite favors for its application as a strengthening phase in toughness matrix materials .