晶粒

The decay rates were different for different magnetic fields and it was larger for magnetic field closer to coercive force.

通过拟和得到体系的涨落场和激活体积，发现离矫顽力越近涨落场越大，得到的激活体积大于晶粒的体积，这是因为强的相互作用场使得晶粒的磁矩趋向一致排列，在体系中形成磁化方向一致的晶粒团。

The results showed that SiO2 induces the abnormal grain growth and increases the eddy current loss,also increases power loss.

结果显示晶粒随SiO2含量增加而变大，而且有局部的晶粒成长，晶粒变大进一步会影响晶界电阻，使的涡流损失增加，导致功率损失也跟著变大。

The invention provides a preparation method of small crystal SAPO-43 molecular sieve, which is characterized in that: the stepwise procedures are adopted to synthetize SAPO-43 molecular sieve, temperature-rising rate in different temperature phase during crystallization is controlled, so that the synthetized SAPO-43 molecular sieve has small particles, even crystal particles, short crystallization time, and reduce the amount of templates greatly, thereby reducing environmental pollution.

本发明的目的是提供一种小晶粒SAPO-43分子筛的制备方法。本发明的特点在于它是采用分阶段程序升温来快速合成小晶粒SAPO-43分子筛。通过对晶化过程中不同温度段内升温速率的控制，从而实现了合成的SAPO-43分子筛晶粒小，晶粒尺寸分布均匀，晶化时间短，且大大的降低了模板剂的用量，从而减少了对环境的污染。

Presents the microstructure evolution in aluminum a nd copper after deformation by cold rolling in the strain range of 10 to 50%red uction using TEM and points out three types of dislocation structures are typica l and two of them are common for both materials and these two common types are f ound in non-cube grains and can be distinguished by crystallographic orientatio n of dislocation boundaries in the grains and the third type of structure is obs erved in cube grains, and concludes that grain orientation is important in deter mining the structure type but some other metallurgical parameters also have a ro le to play.

采用TEM对冷轧多晶铜与多晶铝的形变显微组织演变进行了对比研究。结果发现：多晶铜及多晶铝形变显微组织中均含有三类典型的位错结构类型，其中的两种结构特征在两种材料中是相似的，这两种类型结构存在于非立方取向晶粒，可通过晶粒中位错边界的晶体学取向加以区别，另一类型结构存在于立方取向晶粒；晶粒的晶体学取向决定了其形变显微组织类型，但其它冶金学因素对显微组织也有影响。

In annealing course the size change of crystal grain is unapparent. With annealing temperature go up the size of crystal grain of each phase has an increase tendency, the increase tendency will decelerate when reaching the determinate size of crystal grain.

退火过程中晶粒尺寸变化不大，颗粒中各组成相随着退火温度的升高晶粒尺寸有增大的趋势，在达到一定晶粒尺寸时晶粒长大的趋势变缓。

The grain characteristic of static recrystallization for the hot deformed austenites is studied in this work by using the Gleeble-1500 heat/mechanics moulding experimental set-up.

采用Gleeble－1500热／力学模拟实验机研究了中碳Cr－Ni－Mo－V钢热变形奥氏体静态再结晶晶粒特征，获得了最大晶粒平均直径和平均晶粒直径、混晶因子Z等与等温停留时间的关系曲线，以及等温停留时间对晶粒特征的影响。

E〓 is not only correlative with the H content in the films, but also related to the distribution of H located at grain boundary, the grain size and the free carrier absorption.(5) The Si films with tips on the surface were growth by ICP-CVD.

实验发现，由于样品中存在晶粒与晶粒间界，其光学带隙不但与薄膜中H含量大小有关，而且与H在晶粒间界处的分布情况、晶粒尺寸以及自由载流子吸收等效应相关。

In this paper a computation model of corrosion rate versus grain size of nanocrystalline zircaloy -4 has been presented.

结果表明：与普通晶粒相比，纳米晶粒尺寸下锆合金的速率低于普通晶粒锆-4合金的腐蚀速率，随着纳米晶粒尺寸的减小，锆-4合金的腐蚀速率也降低；同时，纳米化组织处理推迟了锆-4合金氧化转折时间，使其抗氧化性能得到了提高。

Fracture behavior study showed that, reinforced of SiC or Si〓N〓 nanoparticles, or SiC whiskers is due to cracks deflection, or twist, or diverse, or stop during propagating, and bridging and pulling-out of whiskers, and accompanied by fracture of a few SiC nanoparticles and whiskers.

断裂机理研究表明：裂纹扩展过程中遇到纳米SiC晶粒、纳米Si〓N〓晶粒和SiC晶须时，将发生偏转、扭曲、分叉、终止及晶须的桥接、拔出，并有少量SiC晶粒、Si〓N〓晶粒和SiC晶须断裂。

The results show that with the increase of strain rate, the grain sizes of thermal simulation AZ31B alloys with different deformation all decrease; however, when other conditions are the same, the higher deformation will lead to the formation of the smaller grain size, and as the cooling intensity decreases, typical cast structure of AZ31B will appear. With the decrease of roll casting temperature, the dendritic size of roll casting AZ31B alloy sheet prepared by the same strain rate is also reduced, but with the increase of strain rate, the dendritic size of the alloy sheet prepared by the same initial roll casting temperature is decreased, and the tendency of dendritic streamline is strengthened. During the roll casting process of AZ31B alloy, rolling force should not be large, otherwise it will cause heat cracking.

研究结果表明：在不同应变量下，热模拟样品的晶粒粒度均随应变速率的增加而减小，而当其他条件相同时，变形量越大晶粒粒度越小，冷却强度降低，合金呈典型铸态组织；利用铸轧技术生产的AZ31B合金，当应变速率一定时，随着初始铸轧温度的降低，铸轧态板材的树枝晶粒度逐渐减小；而在初始铸轧温度一定时，随着应变速率的增大，铸轧态合金板材的树枝晶粒度也逐渐减小；而随着应变速率的提高，树枝晶沿轧向呈流线状排列的趋势增强；在AZ31B合金铸轧过程中，轧制力不能太大，否则容易引起热裂。

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。