2) SEW-EDAX
扫描电子显微镜-能谱仪
3) scanning electron microscopy
扫描电子显微镜
1.
Field emission scanning electron microscopy(FESEM) and energy dispersive X-ray spectrometry(EDX) were used to obtain the morphology,number-size distribution and chemical compositions of individual mineral particles collected during the two dust storm episodes in April 2005 in Beijing.
应用场发射扫描电子显微镜和X射线能谱仪,研究了2005年4月北京市区2次典型沙尘天气PM10样品中矿物单颗粒的形貌、数量-粒度分布和化学组成。
2.
The crystals from the experiment were measured by scanning electron microscopy (SEM) to confirm the influence of these factors.
利用扫描电子显微镜对所得到的晶体进行了测定,从而确定了溶剂、过饱和度和杂质对愈创木酚甘油醚晶习的影响。
3.
The structure was characterized with scanning electron microscopy, high resolution transmission electron microscopy, and electron diffraction pattern.
采用扫描电子显微镜(SEM)、高分辨透射电子显微镜(HRTEM)、电子衍射对新材料结构进行了表征。
4) scanning electron microscope
扫描电子显微镜
1.
Obsevation for Surface Structure of Nostoc sphaeroides Kutzing under Scanning Electron Microscope
葛仙米表层结构的扫描电子显微镜观察
2.
S_2-4 were prepared, and their microenvironmental changes in the process of COD- removing from contaminated surface water were studied by scanning electron microscope (SEM).
利用扫描电子显微镜(SEM)分析了在去除污染地表水COD过程中固定化球形颗粒的微环境变化,指出物理阻隔、吸附和种群排斥联合作用是固定化微环境对不利外界环境的主要屏蔽机理;同时还指出了通过该方法制备得到的固定化颗粒存在的结构缺陷。
3.
Scanning electron microscope investigated the morphology of support,supported catalysts and polyethylene particles.
扫描电子显微镜 (SEM)是研究材料形态、形貌的强有力工具 ,并广泛用于载体催化剂的研究[1~ 4 ] 。
5) scanning electronic microscope
扫描电子显微镜
1.
The paper introduces principle of scanning electronic microscope briefly; illust rates its applications of structure, nano size and ferroelectric domain taking e xample for ferroelectric ceramic materials; and explains its developmental tende ncy in combined functions with other instruments and several general questions i n scanning electronic microscope analysis of ceramic materials.
简要介绍了扫描电子显微镜的工作原理;以铁电陶瓷为例阐述了这种检测仪器在新型陶瓷材料的显微结构分析、纳米尺寸研究及铁电畴的观测领域中的用途,说明了扫描电子显微镜与其他设备的组合以实现多种分析功能的发展趋势和陶瓷材料在扫描电镜分析时的几个常见问题。
2.
Briefly introduces the observation of the formation process of scraps of easy cutting steel by scanning electronic microscope,and analyzes effect of metal impurity on crackle when the scraps are formed.
主要介绍了在扫描电子显微镜下观察易切钢切削形成过程,同时分析金属夹杂物在切屑形成时对裂纹形成的影响,收到了满意的效果,为国内金属易切钢切削机理研究探索了一种新方法。
3.
With the help of an optical microscope and a scanning electronic microscope conducted are the detailed observations of the microscopic state change relationship of a Jiafu pulverized coal combustion process.
应用光学显微镜和扫描电子显微镜对加福煤粉燃烧过程中微观形态的变化规律进行了详细的观察。
6) Scanning electron microscope(SEM)
扫描电子显微镜
1.
The micromorphology and crystallization of the electrospun non-woven membranes were studied by a scanning electron microscope(SEM) and X-ray diffraction(XRD),respectively.
采用高压静电纺丝法制备了EVOH-g-SO3H离子聚合物无纺布膜,并采用扫描电子显微镜(SEM)及X射线衍射仪(XRD)对该无纺布膜的微观形貌及结晶行为进行了表征。
2.
Chip behaviors were analyzed using scanning electron microscope(SEM),to study the effects of applied load,scan cycles and scanning direction on nanomachining of Al and Cu samples.
切屑形态通过扫描电子显微镜(SEM)进行观察,分析了不同垂直载荷、循环次数和针尖加工方向下铝铜被加工表面的切屑形成过程。
补充资料:电子显微镜
电子显微镜 electron microscope 用电子束代替光学显微镜的光束来放大样品图像的显微镜。高速电子束波长比光波波长短几个数量级,因而电子束具有更高分辨率。1931年第一台透射电子显微镜问世。经过发展,电子显微镜已能观察原子在晶体中的排列和看到单个重原子在载膜上的迁移 。电子显微镜由电子枪、电子透镜、试样台、图像显示和真空系统等组成,可分为4类:① 透射电子显微镜。其加速电压为几万至十万伏,成像方式与光学显微镜相似,放大后的电子图像在荧光屏上显示,也可用照相方法记录,放大倍数可达100 万倍,用于放大图像和进行元素和晶体结构分析。②扫描电子显微镜。利用偏转器使电子束斑在样品表面上进行光栅扫描,收集被扫描表面上发出的次级电子,用次级电子流强度来调制同步扫描的显像管的亮度,以直接观察固体表面形貌。其分辨本领达 30~60埃。③扫描透射电子显微镜。其成像方式与扫描电子显微镜相似,但接收的不是次级电子而是透过极薄样品的透射电子。分辨本领达3埃。④超高压电子显微镜。采用300万伏的加速电压。分辨本领达 1.5 埃。用于观察金属、矿物和其他晶体样品中的原子排列。
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