微观研究

The electrolysis corrosion rates in the cryolite molten salt under different current densities were measured and the corrosion mechanism was preliminarily discussed.

用X射线衍射和扫描电子显微镜对材料的组成和微观结构进行了研究，测量了样品在冰晶石熔盐中不同电流密度下的电解腐蚀速率，并对其腐蚀机理作了初步探讨。

The corrosion rate, corrosive wear rate and polarization curves of aluminium brass and cupronickel alloy were determined in 3.5%NaCl and 3.5%NaCl+NH3(NH4+)solutions, the wear tracks of copper alloys were observed by SEM, the specific energy of the surface layer after corrosion was also measured by single pendulum scratching test.

本文通过测定HA177－2，BFe30－1－1在3.5％NaCl和3.5％NaCl＋NH3（NH4+）溶液中的腐蚀速率、腐蚀磨损率和电化学行为以及观测腐蚀磨损后铜合金的微观形貌，研究了腐蚀后样品的表层性能。

The cuticle was observed with several methods of electron microscopy.

用几种电子显微镜研究了黄色颗粒的微观形态和发育过程。

The nano-scale Ni2 doped with Co was prepared by precipitate transformation method, and its structure and morphology were characterized by XRD and TEM. The electrochemical performances, especially high rate discharge performance, of the material were investigated by cyclic voltammetry and constant current technology.

摘 要：采用沉淀转化法制备掺杂Co的纳米Ni2，利用XRD和TEM分析材料的结构和微观形貌，利用循环伏安技术和恒流充放电技术研究材料的电化学性能尤其是高倍率放电性能。

The prior cycles with higher axial stress and larger strain range greatly restrains ratchetting strain of subsequent cycling with lower ones. Creep behavior plays an important role in the ratchetting strain and its influence on ratchetting behavior can not be neglected. Fracture morphology characteristics of two kinds of materials were investigated by scanning electron microscope. It shows that failure of material A is induced by cavitation and that of material B is induced by decohesion. For material A, with the decreasing strain amplitude the fracture surface shows more larger diameter globular particles under uniaxial loading and can be seen more obvious and deep crack under multiaxial loading. However for material B, with the decreasing strain amplitude fracture surface shows larger and larger scalelike shape and becomes more smooth under uniaxial loading, but fracture surface under multiaxial loading looks like more smooth than that of uniaxial loading, and shows gradually wave-like morphology.

通过扫描电子显微镜研究表明：材料A为空穴引起的失效，材料B为剥离导致疲劳破坏；随着载荷幅值的减小，材料A在单轴载荷下，断口表面浮出更多更大直径的球状颗粒，而多轴载荷下，可以看到很深的裂纹；随着载荷幅值的减小，材料B在单轴载荷下，断口表面鱼鳞片越来越大，表面越来越平整，而多轴载荷与单轴载荷相比，断口表面看上去更加平整，并且随着载荷幅值的减小，断口逐渐呈现波浪形貌；通过微观的傅立叶变换红外光谱分析，结果表明随着应变幅值的增加，无论载荷是单轴还是多轴状态下，橡胶材料吸光度比值随着幅值的增加而增加，这说明体系中的结晶含量也随之增加。

Objective To investigate the transformation of microhardness and microstructures of human dental flu-orosis after demineralization and remineralization in vitro.

目的 研究离体氟斑牙早期龋模型经再矿化处理后，釉质表面显微硬度及微观形貌的变化。

In the paper four aspects have been studied:(1) tree and distributing, belonging to the correlative contents of the dendrology,(2) the macroscopical character in virtue of magnifier and entitative microscope observing the three sections (cross section, radial section and tangential section );(3) the microcosmic character, in virtue of light microscope observing slices.

本文从以下四个方面进行了研究：(1)树木及分布，树木学方面相关的内容；(2)木材宏观特征，借助扩大镜和实体显微镜，在木材的三个标准切面，即横切面、径切面和弦切面上进行观察；(3)木材微观特征，借助光学显微镜观察切片。

Its crystal structure, and piezoelectric properties and depolarization temperature were investigated.

研究了该体系陶瓷微观结构、压电性能和退极化温度的变化规律。

The influence of chemical composition and microstructure of slag, welding parameters and physico and chemico—propertios of slag on detachability of slag was studied.

研究了熔渣化学成分及微观组织结构、焊接工艺参数和熔渣物理化学性质对脱渣性的影响。

It has long been known that the poor corrosion resistance of brass in certain environment is due to the phenomenon of dezincification.

采用显微组织分析和脱锌腐蚀实验方法，研究了不同铋含量对黄铜的微观组织以及黄铜脱锌腐蚀性能的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。