查询词典 electron diffraction

Nanoscale zero valent iron particles were synthesized by reductive method in aqueous phase. The crystal structure, morphology and size of the particles were characterized using X-ray diffraction and transmission electron microscopy. The influence of temperature, initial acid fuchsine concentration, nanoscale zero valent iron dosage and pH on the removal of acid fuchsine by the particles was studied, and the removal mechanism of acid fuchsine was discussed.

摘 要：采用液相还原法制备零价纳米铁粒子；用X射线衍射和透射电镜表征该样品的晶体结构、颗粒形貌与尺寸；研究温度、酸性品红初始浓度、纳米零价铁加入量及溶液pH值对零价纳米铁粒子脱除酸性品红的影响，并对酸性品红的脱除机理进行讨论。

The cross-section morphology and microstructure of the coatings were studied by field emission scanning electron microscopy and glancing angle X-ray diffraction respectively,and the nano-hardness and friction behavior of the coatings were also characterized.

分别采用场发射扫描电子显微镜和小掠射角X射线衍射方法研究了涂层横截面的形貌和晶体结构，并对涂层的纳米硬度和摩擦性能进行了表征。

Surface modified nano-sized mgnesium hydroxide was prepared by direct precipitation method with magnesium nitrate hexahydrate and sodium hydroxide as raw materials,and sodium fatty alcohol polyoxyethylene ether carboxylate as modifying agent.The optimum dosage of modifying agent was 0.2% of the mass of magnesium hydroxide,which was confirmed by sediment volume experiment.Modified and unmodified samples were characterized by fourier transform infrared spectroscopy,X-ray diffraction,transmission electron microscope,and tap density test.

以六水硝酸镁、氢氧化钠为原料，脂肪醇聚氧乙烯醚羧酸钠为改性剂，采用直接沉淀法一步合成改性纳米氢氧化镁，用沉降体积实验确定改性剂的最佳用量为氢氧化镁质量的0.2%，通过红外光谱、X射线衍射、透射电镜、表观密度对改性前后的样品进行表征。

The intercalate, exfoliate and dispersing status action of montmorillonite in PET phase were investigated by X-ray diffraction, transmission electron microscope and scanning probe microscope.

利用扫描探针显微镜研究了复合材料的微观结构，首次直观地观察到层状蒙脱土在聚合物中的形态结构。

The composites were tested by X-Ray Diffraction, Scanning Electron Microscopy, Thermal Expansion Coefficient and flexural strength. In these ways, the synthesization of leucite crystal and the preparation of Zro2-KAlSi2O6 Ceramic powder are systemically investigated.

本研究以钾长石、纳米氧化锆和碳酸钾为原料，采用固相反应合成氧化锆-白榴石基烤瓷粉，借助XRD、SEM、TEC和弯曲强度等分析测试方法，对白榴石晶体的合成及氧化锆-白榴石基烤瓷粉的制备进行了较为系统的研究。

Using of optical microscopy, X-ray diffraction, transmission electron microscopy, hardness and tensile testing, the effect of thermal exposure at high temperatures on the microstructures and of high-temperature tensile properties of rapidly solidified AlCrYZr have been studied. The results show that there are two main phases,Al20Cr2Y(cubic, a=1.437 nm) and DO23Al3Zr(terganal, a=0.4 013 nm , c= 1.732 nm), in the as-solidified alloy. The Al20Cr2Y phase can maintain its cubic structure at 500℃, but the particles coarsen remarkably and even become lumpish. In coarse lumpish Al20Cr2Y phase the plane faults and twin structures exist.

摘 要：采用金相、 X射线衍射、透射电镜、硬度测定和拉伸试验研究了高温热暴露对快速凝固AlCrYZr合金显微组织影响和高温下力学性能的热稳定性，结果表明，快速凝固AlCrYZr合金主要第二相为Al20Cr2Y(立方，a=1.437nm)和DO23Al3Zr(正方，a=0.401 3nm， c=1.732nm)，Al20Cr2Y在500℃热暴露尚能保持其立方结构，但质点明显粗化，甚至块状化，在粗大的Al20Cr2Y相中存在有层错和孪晶结构。

The produced Fe-Ni alloy nanoparticles were characterized by X-ray diffraction, transmission electron microscope and vibrating sample magnetometer.

通过XRD和TEM研究了产物的微观结构，并对产物的磁学性质进行了表征。

The structure and magnetic properties of the sample were studied by scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer.

采用扫描电子显微镜、X射线衍射仪和振动样品磁强计对样品的形貌、晶体结构和磁性进行了研究。

The as-prepared materials were characterized by a variety of techniques such as N2 adsorption, scanning electron microscopy, X-ray diffraction and vibrating-sample magnetometry.

实验通过氮气吸附、扫描电镜、X射线衍射、磁性测试等手段对Fe/OMCs进行了系统的表征。

The nanocomposite particles were characterized by X-ray diffraction, field-emission-scanning electron microscopy, differential thermal analysis, vibrating sample magnetometry and HL-5 hall effect testing.

用X射线衍射、场发射扫描电镜、差热分析、振动样品磁强计和Hall效应测试系统对样品进行了表征。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。