Atomic Simulation of Two-dimentional Mechanical Behavior for Nano-single Crystal and Nano-bicrystal Copper under Static Tensile Loading;
纳米铜单晶及双晶静拉伸二维力学行为的原子模拟
Breaking Behavior of a Bicrystal Copper Nanowire Studied Using a Fourier Transformation Method
利用傅立叶变换研究铜双晶纳米线的断裂行为
Previous investigations were mainly performed with polycrystals, but recently we have studied the internal friction of a single boundary by using bicrystals with different misorientations, and some new results have been obtained.
最近作者用不同取向差的双晶试样研究了单个晶界的内耗,取得了一些新的结果。
This paper introduces briefly the points of similarity between mineral crystals and buildings,and explicates mainly the use of crystal forms in design of external forms of buildings, such as mountain crystal-form building,beryl-form building,tourmaline-form building,twin-crystal-form building,overgrowth-form building, parallel intergrowth-form building,and inlay-form building.
简述了矿物晶体与建筑的相似性,重点地阐述了晶体形态在建筑物外部体形设计中的应用,如水晶式建筑、绿柱石式建筑、电气石式建筑、晶簇式建筑、双晶式建筑、浮生式建筑、平行连生式建筑和镶嵌式建筑。
The twin structure of Na5[B2P3O13] crystal was observed by the synchrotro.
晶体定向中发现(100)和(001)晶面的一级衍射出现双峰;正交偏光显微镜下观察晶体的(010)切片,看到清晰的明暗条纹;当一束激光正入射(010)切片时,产生衍射现象;用同步辐射白光X射线形貌术拍摄了(100)、(010)和(001)切片的Laue像,观察到了晶体的孪晶结构,再借助(010)切片的化学腐蚀研究,推出该晶体为规则的聚片双晶,其结合面为(001)。
Based on the various twin forms and the crystal structure models of arsenopyrite, it is analysed the structure feature of the crystal boundaries in the twins, inferred the genetic models of these twins, discussed the symmetrical combination of the crystal boundaries.
本文以毒砂的各种双晶现象和结构模型为基础，分析了双晶中各晶界的结构特点，推测各双晶的形成模式，并讨论了晶界对称组合特
Pure aluminum bicrystals with symmetric tilt grain boundaries were grown by Bridgeman method.
采用Ｂｒｉｄｇｅｍａｎ－Ｓｔｏｃｋｂａｒｇｅｒ法制取了一系列具有不同晶界结构参数的纯Ａｌ双晶试样，分别测定它们在不同加热温度和保温条件下的晶界迁移距离和晶界迁移速率。
The crack growth rate of the bicrystals is measured.
对晶界平行裂纹和晶界垂直裂纹的双晶体进行三点弯曲疲劳实验,研究了双晶材料的疲劳裂纹扩展规律,测定了双晶的疲劳扩展速率,揭示了晶界对晶粒疲劳裂纹扩展的屏蔽效应:当裂纹距晶界某一特定长度时,裂纹扩展速率最快;而裂纹顶端交于晶界时,裂纹扩展速率最慢。
The fracture behavior for Ni base bicrystals was studied by experiments.
对单晶体以及晶界平行晶粒裂纹和晶界垂直晶粒裂纹的双晶体的断裂韧性进行了实验研究 。
double crystal X-ray goniometer
双晶体x射线测角仪
double crystal X-ray spectrometer
双晶体x射线光谱计
Isomorphism between crystalline forms of two dimorphic substances.
同二晶现象两种双晶物质的晶体形式的同形性
Study on Semiconductor by X-Ray Double Crystal Diffraction;
半导体超晶格的X射线双晶衍射研究
Analysis of the first crystal Attitude error in a double-crystal monochromator
双晶单色仪第一晶体初安装姿态误差分析
Crystal Plastic Theory and Its Application on Nickel-based Single and Bicrystal Superalloys;
晶体塑性理论及其在镍基单晶和双晶合金中的应用
ETCHING FIGURE OF α-QUARTZ TWINNING ON DIFFERENT CRYSTALLOGRAPHIC FACES AND CRYSTAL SYMMETRY
α-石英双晶的腐蚀像在各不同结晶学面上的特征及晶体对称研究
N-P-N two junction transistor
NPN双结晶体管n-p-n双结晶体管
bipolar power transistor physics
双极功率晶体管物理学
caprinid biosparite
双壳类生物亮晶灰岩
switching time of bipolar transistor
双极晶体管开关时间
double crucible crystal growing apparatus
双坩埚晶体生长装置
double-emitter chopper transistor
双发射极斩波晶体管
double epitaxial IC transistor
双外延集成电路晶体管
double-diffused phototransistor
双扩散型光电晶体管
equivalent circuit of bipolar transistor
双极晶体管等效电路
heterojunction bipolar transistor
异质结双极型晶体管
Crystals having this property are said to be doubly refracting, or birefringent.
具有这种性质的晶体叫做双折射晶体。