In addition , it concentrates on structure - function relationships , and in particular how grain size , interstitial and substitutional solid solutions , and second - phase particles impact mechanical and other properties 此外，课程内容主要锁定在结构与功能性的关连性，尤其是晶粒大小、插入和取代式固态混合物以及第二位相之粒子，对于机械和其他性质的冲击。
The microstructure of lamellae pearlite has evolved ultrafine cementite particles throughout the ferrite matrix uniformly after five passes . the ferrite matrix is homogeneous grains , average grain size is - 0 . 3 m . 2 变形五道次后，片层状的珠光体组织演变成了超细的渗碳体颗粒均匀分布于铁素体基体的组织，铁素体基体为均匀的等轴晶，平均晶粒大小为0 . 3 m 。
The grain size and microdistortion of some nanomaterials synthesized by different methods , from different materials and treated under different disposal conditions were studied by means of wide angel x - ray diffraction ( waxd ) and single line fourier line shape refine analysis 摘要利用广角x射线衍射仪，采用单线傅氏线形精炼分析法，研究不同制备方法及不同处理条件的纳米晶体的晶粒大小和微观畸变。
Then , according to the calculation , a simplified mathematic model of nano material grain size growth in laser sintering is put forward which could be used in the optimization of sintering parameters , the forecasting of grain size and its control . 2 对不同加工参数变化下的晶粒直径尺寸进行了数值计算，提出了晶粒长大简化数学模型，对生产或实验中参数的优化或选择，晶粒大小的预测与控制具有实际意义。
Results show that zro2 - ni cermet has clear crystalline interface and uniform distribution . its crystal size is 0 . 3 p m . through analyzing the data of specific heat of zro2 - ni cermet , it reveals that adulterating cobalt can enhance the wetting quality of ni and zro2 用xrd 、 sem研究了zro _ 2 - ni - co金属陶瓷的相结构和形貌，确定了合适的烧结温度，结果表明，材料的晶粒大小和分布十分均匀，晶界清晰，粒度在0 . 3 m左右。
With frame gather card and ccd , metallographic image which can be processed by computer is acquired after a serials of the applications of digital image technique such as gray level transformation , dichotomy , noise eliminating , dilation and erosion , image enhancement , boundary detection , etc . an automatic quantitative metallographic analysis system is developed with visual c + + 6 . 0 to realize the measuring of the size of the metal crystalline grain , evaluation the proportion of the second tissue of the metal , micro hardness . with three - level browser / server mode and active server technology , the system gives the remote user the applying service through network to communicate and analyze the image information 利用数字图像处理技术，对图像采集卡或ccd摄像头采集到的金相图像进行灰度转换、二值化、噪音消除、图像增强、边缘提取等一系列图像预处理，获得计算机可以处理的数字图像；并利用visualc + + 6 . 0开发定量金相分析系统，以实现对晶粒大小、金相组织第二相相对含量、显微硬度等参量的自动测量；采用基于browser server的三层体系结构，通过网络访问，并利用activeserver技术给远程用户提供应用服务，以便于根据图像分析结果，给出专家分析意见，实现异地分析及交流。
Components , structure and surface morphology of the resulted films were identified by fourier transform infrared ( ftir ) spectroscopy , x - ray diffraction ( xrd ) and scanning electronic microscopy ( sem ) . the analyses showed the content of cubic boron nitride in the resultant films on substrates was rather high and crystal particles of c - bn with uniform size , smooth crystal plane and regular shapes ( quadrangle and hexagon ) densely arrayed on the substrate 傅里叶转换红外吸收( ftir )光谱仪、 x射线衍射( xrd )仪和扫描电镜( stm )的测量结果显示，基底上的bn膜中立方相含量很高，且晶粒大小均匀、排列致密，晶形呈规则的四角和六角形。
The analyses of their microstructure showed that comparing with zl101 that contained no titanium , the trace amounts of titanium in alloys caused grain refining of al - l % si in zl101a prepared from electrolytic low content titanium aluminum alloy ( i . e . alti101a ) and zl101a prepared from electrolytic al - si - ti alloy ( i . e . ast101a ) , and the grain size distribution became more even , whereas the trace amounts of titanium have little influence on the size and shape of si particles in these alloys 微观组织分析结果表明，相对于不含钛的zl101 ，微量的钛可以使电解低钛铝合金制备的zl101a ( alti101a )和电解铝硅钛合金制备的zl101a ( ast101a )的( al )相的晶粒细化，晶粒大小分布均匀，但对它们的si粒子尺寸和形貌影响不大。
Although the resistance to oxidation increases with the increase of tungsten , the netlike carbides distributed along the crystal boundary including m2c , m6c and complex carbides manifold by means of the analysis of optical microstructure , xrd and reckoning the volume fraction of carbides by lattice 1变质时；晶粒大小在扣100pm之问，而网状碳化物明显细化，网状碳化物处在10 30um之间；用1 4 re1i mg复合变质后，晶粒大小在10 50um之间，网状碳化物处在10 20um之间，组织细小而均匀，绝大部分晶界碳化物呈断网状分布。
The precursor 00304 with nano - crystalline was prepared at 50 ~ 90 and ph = 9 - 11 using [ co ( nh3 ) 6 ] 3 + and co2 + ions . effects of the temperature on crystallites , including the crystallite sizes and their distributions , the shape and the crystallinity were investigated . the mechanism for nucleation and growth of the crystallites were also discussed 13 ‘和co ， ‘在温度50一90oc ， ph = 9一11条件下希， }备的纳米晶，讨论了制备条件对反应产物组成和结构的影响，研究了反应温度对其晶粒大小和分布、形貌、结晶度等微观结构的影响，并初步探讨了反应机理和晶化机制。
