The microstructure of the film was characterized by X ray diffraction, transmission electron microscopy, and selected area diffraction. 电子显微探针分析仪用X射线衍射仪、射电镜及其选区衍射来分析薄膜的微结构。
The mechanism analysis for the backward diffraction on shadow area of equal-section fuselage having low radar cross section 低散射等剖面机身影区后向绕射机理分析
The powders were characterized by means of X-ray diffraction, scanning electron microscopy, specific surface area analysis and laser size analysis. 用X射线衍射、扫描电镜、比表面测试、激光粒度分析等手段对所制备粉体的性能进行了表征。
The overlapping of lateral wave and diffraction waves is avoided skillfully when receiving the diffraction signals after their reflected at the back wall first. The blind area has been curtailed to 0~ 2 mm under the surface. On-line detection is executable. 通过检测经过底面反射一次的衍射信号,避免了侧向波和衍射波的叠加,将盲区缩减到被测表面以下2mm,且可以实现在线检测。
Distributions of the diffraction intensities of the transition area are simulated by means of models with identical atomic planes but various packing spacings, the result agrees with the actual intensity distribution very well. 以相同原子面不同堆垛间距的模型模拟了过渡区衍射强度的分布,与实际强度符合得很好。
The article proposed the use dressing technology classification, after these mineral grouping, appraises, chemistry many analyses, X beam diffraction analysis, through the mirror under methods and so on electron probe micro area analysis carries on the mineral quota. 文章提出利用选矿技术选别,将这些矿物分组后,通过镜下鉴定、化学多项分析、X射线衍射分析、电子探针微区分析等手段进行矿物定量。
The structure of organo clays and mechanism for their adsorption were studied by X ray diffraction ( XRD) and BET area. 通过X-衍射分析等手段探讨了有机粘土的结构及其吸附机理。
The free space propagation property of broadband laser beam in Fresnel diffraction area is studied based on Huygens-Fresnel diffraction integral. The relationship between modulation depth, bandwidth Δλ and Fresnel number is obtained. 基于惠更斯-菲涅耳衍射积分公式,研究了宽带光束在菲涅耳衍射区的自由空间传输特性,得到宽带光束传输的调制深度与光束带宽Δλ及菲涅耳数F的变化关系。
A diffraction system based on X-ray area detector and its applications on pole figure measurement as well as corresponding computation of orientation distribution functions are described. 论文介绍了X射线面探测器系统及其在测量极图、计算取向分布函数中的应用。
Calibration of Integral Diffraction Efficiency for Large Area LiF Crystal 大面积LiF晶体积分衍射效率的标定
A new technique for X-ray stress measurement has been introduced. The formula of calculating stress are inferred according to the theory of X-ray diffraction and the geometry of back-reflection for X-ray area detector, called an imaging plate ( IP). 介绍了一种X射线应力测试新技术,基于X射线衍射原理与影像板平面探测器背反射几何,推导出应力测试基本公式,并列举了应用实例。
Finally, some suggestions are made on how to raise the diffraction efficiency and enlarge the ruling area of the grating in terms of experiment. 最后探讨了如何提高衍射效率,控制闪耀波长及增大刻划面积等问题。
The new method can solve the problems in residual stress measurement by conventional X-ray diffraction such as coarse-grained materials, textured materials, or weak diffraction intensity which attributed to virtual oscillation function of X-ray area detector. 该方法有效地利用X射线面探测器的虚拟摆动功能,在一定程度上解决了传统X射线衍射法较难处理的粗晶材料和有织构材料的残余应力测量问题。
The resulting nanorods were characterized by wide-angle X-ray diffraction ( WAXD), transmission electron microscopy ( TEM), selected area electron diffraction ( SAED) and X-ray photoelectron spectroscopy ( XPS). 对所得纳米棒进行了广角X射线衍射谱(WAXD)、透射电子显微学(TEM)、电子衍射谱(SAED)和X射线光电子能谱(XPS)的表征。
The X-ray diffraction ( XRD), high-resolution transmission electron microscopy ( HRTEM) and selected area electron diffraction ( SAED) results indicate that the sputtered film has an amorphous structure. X-射线衍射(XRD)、高分辨率透射电镜(HRTEM)和选区电子衍射(SAED)分析表明,该薄膜为非晶态。
Three methods ( TEM, X-ray diffraction and specific surface area) of measuring SiO_2 nano-particles size were compared. 本文以纳米SiO2粉末为研究对象,首次比较了三种常用的纳米颗粒粒径检测方法(透射电镜法、X射线衍射法、比表面积法)的检测结果。
According to the wave factor of deep waters, utilize the mathematics model of the shallow water wave refraction, diffraction and transformation to calculate the wave elements in the planned engineering area. 根据确定的深水波要素,利用波浪浅水折射、绕射变形数学模型,计算拟建工程地点的波浪要素。
The crystallinity of PET in heat treatment process was calculated using the average X-ray diffraction intensity collected by an area detector. The result of calculation reveals that crystallinity decreases drastically during cold rolling and increases gradually during heat treatment. X射线平均衍射强度法计算PET结晶度的结果表明,结晶度在轧制形变后大幅下降,然后随加热温度升高和加热时间延长逐渐上升。
Then geometrical theory of diffraction method is used to analyze and compute diffractive field of the area except for offset paraboloidal antenna's front axis, and it is the difficulty of the paper. 接下来,本文运用几何绕射理论方法,对偏焦抛物反射面天线前轴向区以外区域的绕射场进行了分析和计算,这一部分是本文的难点。
The backward diffraction on the shadow area of aircraft and its components having low radar-cross-section ( RCS) is one of the main contributions of their RCS. 阴影区的后向绕射是低散射截面飞行器和部件RCS的主要贡献之一,有效地抑制它可以进一步地减缩RCS。
Diffraction pattern capturing and data processing are completed through Area Scan CCD camera, frame grabber and computer. 采用面阵CCD获取准直激光束通过位相板形成的衍射图像、经采集卡数字化,由计算机完成数据处理。
X-ray diffraction determination of stress relax in laser melted area of stainless steel 激光熔区中应力缓解的X射线衍射法测定
Structural changes of hemp fiber with liquid ammonia treatment have been researched by scanning electron microscopy, X-ray diffraction, surface area analyzer and Infrared spectroscopy. 本文通过扫描电镜、X-ray衍射、比表面积测试及红外光谱测试等手段,研究了液氨处理前后大麻纤维的结构变化。
A study on the microstructure of zeolite materials of the three metal zeolite antibacterial agent has been finished under the methods of X-ray diffraction, scanning electron microscopy, BET surface area analysis, particle size analysis. 对三金属抗菌沸石和沸石原料进行气体吸附法、扫描电镜、X射线衍射仪、粒径分析仪等结构分析。
The diffraction grating of large area and high precision is the core optical device of large observational instruments which are applied to various fields. Because of the characteristics of large size and high precision, the grating can only be manufactured by mechanical characterization. 大面积高精度衍射光栅是大型空天地观测仪器的核心光学器件,由于其大尺寸高精度的要求,机械式刻划是其唯一的制造方式。
Then, the modified waste FCC catalysts were characterized by X-ray powder diffraction and specific surface area test. 用不同浓度盐酸对废FCC催化剂进行改性处理,并对其作了X-射线衍射和比表面分析。
And their physical and chemical properties were characterized by FT-IR spectrum, X-ray diffraction, scanning electron microscope ( SEM), thermo gravimetric analyzer, surface area and pore size distribution analyzer and contact angle apparatus. 应用傅立叶红外光谱仪、X-射线衍射仪、扫描电子显微镜、热重分析仪、比表面积及孔径分析仪、接触角测定仪表征了其理化性能。
Currently, the main experimental methods used in Micro-area residual stress measure are X-ray diffraction and neutron diffraction, but both the methods are often measure the average stress within the measured area of the material. 目前,对微区残余应力的实验测量应用较多的是X射线衍射法和中子衍射法,但这两种方法测量的往往是材料内所测量区的平均应力。
With the developing of various large-scale astrophysics projects, the diffraction grating of large area and high precision needs higher manufacturing precision. 随着各项大型天文物理项目的不断开展,对大面积高精度的衍射光栅制造精度提出了更高的要求。