晶体

The chemical bond properties of the magnetoplumbite type compound LaMAl11O19 have been studied by using the average band-gap model of the complex crystal chemical bond.

利用复杂晶体化学键的平均能带模型研究了LaMAl11O19晶体的化学键性质。

A comprehensive review has been given on the literature on the growth of the low temperature phase of barium metaborate.

本文首先对目前关于BBO晶体生长的文献作了一次回顾和总结，对各种晶体生长方法作了简单的归类。

The high temperature phase barium metaborate α-BaB2O4 single crystal with 25mm in diameter, 100mm in height was grown by the Bridgman method .

采用坩埚下降法生长出了新型双折射晶体高温相偏硼酸钡α-BaB2O4单晶，尺寸为φ25mm×100mm，在He-Ne激光照射下无散射颗粒和生长条纹，在可见光区用复式宝石折射仪粗略测得该晶体的双折射率△n=0。

CMTC crystal belongs to metallorganic complex compounds and growth units are in the form of complex anions. Therefore, there are probably some unsaturated electrovalent bonds on the growth face, which undergoes a "restruction" process by bond linkages until a stable state with least surface energy is reached.

2CMTC晶体是配合物型晶体，以配位阴离子基团形式向生长界面堆积生长，因此在界面上很可能会存在着一些不饱和的离子悬键，悬键之间可能相互连接进行&重构&以达到表面自由能最小的稳定状态。

H+2 ions were implanted into ilmenite at room temperature,and the microreaction mechanism during the reduction of ilmenite was investigated by transmission electron microscopy.

实验发现，注入H2+离子后，[1-10]方向的金属铁晶体在[1-43-1]方向的钛铁矿晶体上生成；在钛铁矿还原过程中，金属铁的(2-2-2-)或(222)晶面优先由钛铁矿的(426-4-)和(4-2-64)晶面转变而来，钛铁矿还原到铁的结构变化是一个渐变过程

FeOOH crystals in the process of formation, but also by different anion molysite the impact of its crystal structure and crystallization speed There is a big difference.

FeOOH晶体在形成过程中，还受铁盐中不同阴离子的影响，其结晶速度和晶体结构有很大区别。

In order to solve the experimental problem of tricrystal,elastic stress distribution of copper tricrystal under monotonical loading was analyzed by finite element method,the shear stress on slip system in each grain was analyzed.

采用有限单元法计算三晶体在单向拉伸载荷作用下弹性阶段的应力场，分析了三晶体中各晶粒主滑移系上的切应力分布，计算结果表明，当晶界平行于加载轴时，该晶界对其两侧晶粒有很明显的作用，较大程度的改变晶粒滑移系的形式，而且作用程度要超过三晶交点的作用，倾斜晶界则没有明显的作用。

Different growthing methods of lithium niobate single crystals and their respective characteristics are presented in this paper. Problems occuring in the growth process of ...

本文从晶体生长技术的角度综述了铌酸锂单晶体不同的生长方法以及各自的特点，并分析了在生长铌酸锂晶体时出现的一些问题。

With the development of photoelectron technology, the role of lithium niobate crystal is more and more important. The need of ultra-precision device, made with lithium niobate crystal, increased steadily.

随着光电子技术的发展，铌酸锂晶体在行业中的作用越来越重要，利用铌酸锂晶体制作超精密元器件的需求与日俱增。

The calculation takes into account the effects of grating period, noncollinear amplification geometry, crystal's length and pump intensity. The results show the grating period of PPLN and the noncollinear geometry has effects on the spectral bandwidth.

计算结果表明，参量带宽和增益带宽具有相似的特性，而且PPLN晶体的周期和非共线入射结构会对光参量放大的光谱带宽产生一定的影响，在同一波长处，通过调节晶体周期或非共线结构可以获得更大的带宽。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。