查询词典 grain crystal

The structures and orientation texture evolution of UFG-Copper during AARB were studied and the results were as follows:(1)Whenεis lower or equal to 1.6,the slips happen on grain boundaries and crystal planes owing to the shearing force.There occur many sub-grains possessing small angle boundaries and 5μm grains sizes within the big grains.

研究了大变形异步叠轧制备超细晶铜材过程的组织和取向织构变化情况，结果表明：(1)变形等效应变ε≤1.6时，剪切应力的作用使晶粒与晶粒之间发生滑动，部分晶粒内部晶面发生滑移，大晶粒内部转变为许多具有小角度晶界、大小为5个微米的亚晶。

The properties of thin films have been investigated with modern analysis technique, such as AFM, SEM, XRD (X-ray diffraction) and Rocking curve. And the properties of YBCO thin film and its substrate and deposition temperature have been analysed, comparing with LAO substrates crystallization quality, YBCO thin film properties, such as morphology and degree of grain alignment, was concluded to correlate with the crystal orientation uniform of LAO substrate as revealed by XRD.

本文结合AFM、SEM研究YBCO薄膜的表面形貌，XRD、FWHM分析薄膜的结晶情况，并结合成膜温度和基片的质量进行一系列结构与性能的对比研究，发现LaAlO3基片的质量对YBCO薄膜的结构完整性有很大影响，不仅影响了薄膜的c轴取向性，而且影响了YBCO的超导性能。

Several crystal grain in the glaze were identified as diopside、α-Fe2O3、β-wollastonite and Tricalcium phosphate.

同时在釉中的还发现有透辉石、α-Fe2O3 、硅酸钙、磷酸钙等结晶物。

The results show that a large number of fine crystal grain are formed on the surface of a crystal nucleus eradiation equipment with cooling system while the vibrating bar of the equipment is inserted into 30% NH4Cl aqueous solution.

结果发现：当一种带有冷却结构和高频振动的晶核发射器棒体插入氯化铵溶液时，在棒体表面将迅速形成大量的细小晶粒。

School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China）Abstract: By analyzing the crystal growth habit of gibbsite theoretically using Morphology program, the morphology character of crystal grain and the theoretic habit of gibbsite were studied.

摘 要：对氢氧化铝晶体生长习性进行Morphology理论研究，明确氢氧化铝晶粒长大后的晶粒形态特征及氢氧化铝的理论晶体生长习性。

Meanwhile, the surface layer gets fine crystal grain with dispersive and homogeneous distribution of WC grains and Co binder from rapid melting and resolidification during HIPIB irradiation. Minimizing the mean free path in Co binder by decreasing the WC grain size leads to an increase in resistance to plastic deformation in the binder.

HIPIB强烈非平衡作用下的重熔和再结晶使WC晶粒细化且分布更均匀，同时，表层析出弥散分布的Co_3w_9C_4相，使Co粘结相产生强化，导致Co粘结相的平均自由程降低，从而增强了Co粘结相抵抗塑性变形的能力，提高了辐照硬质合金的耐磨性能。

The preparation of the composite grain lays the foundation for research of moving behavior of grain under electromagnetic field and preparation of photon crystal by means of electromagnetic rheometric technology.

该复合颗粒的制备为研究电磁场作用下颗粒的运动行为以及用电磁流变技术制备光子晶体提供基础。

The results show that the crystal grain of nanometer ZrO2 loading CuO and ZnO which are prepared by fractional precipitation method are less than 20 nm as a shape of sphericity or ellipsoidal, and the nanometer ZnO/ZrO2 grain glomerates intensively.

结果表明，分步沉淀法制得的担载CuO和ZnO的ZrO2基纳米粉体的晶粒小于20mm，形貌多为球形或椭球形状，其中ZnO／ZrO2纳米粉体晶粒间有较大的团聚现象。

For thinner films, stacking faults are preferred in the scratch process, which increase storage capacity of plastic deformation in the film, and further inhibit the stick slip amplitude in the friction oscillation process. For thicker films, dislocation loops, which glide along slip plane downward to the grain boundary, dominate over the stacking faults, and finally dissipate on the grain boundaries. Since the intergrain stacking faults are inactive in thicker films, the stick slip phenomenon is similar to that in single crystal.

摩擦过程中易在较薄的薄膜表面和薄膜晶界之间产生穿晶层错，穿晶层错的产生增加了薄膜蓄积塑性变形的能力，从而抑制材料表面摩擦力在黏滑过程中的振荡幅度；在比较厚的薄膜中不易生成穿晶层错，在摩擦过程中位错环依次向体材料发射，并与晶界反应，湮灭于晶界，黏滑动摩擦响应与单晶相似。

Its electric conduction model is: Crystal-grain-grain-boundary of model. This model is used to analyze the resistance-temperature characteristic curve of the CTR sample.

利用该模型对V-P-Fe系CTR样品的实测阻温特性曲线进行分析。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。