Lattice Parameters and Effects Factors of Single Crystal Nickel-base Superalloy 单晶镍基合金中γ,γ′两相的晶格常数及影响因素
A new method to measure lattice parameters is presented. 提出了精测点阵参数的一种新方法。
New Methods on the Determination of Martensitic Transformation Shear Angle and Lattice Parameters; 马氏体相变切变角和点阵常数测定的新方法◆剪切角可调,减少板料扭曲变形。
Crystal structure and lattice parameters as a function of Sr-concentration x was precisely determined by power X-ray Rietveld analysis. 通过粉末X射线衍射分析准确地确定了其结构和晶格常数随Sr掺杂量的变化。
The lattice parameters, Mn O bond length and ( Mn O Mn) bond angle of both systems vary with different La-vacancy concentration, which indicates there exists Jahn-Teller effect in the system. La(1-x)2/3Ca1/3MnO3系统和(La(0.7-x)Y0.3)2/3Ca1/3MnO3系统的晶格参数以及MnO键长和MnOMn键角随La空位浓度不同而改变,说明在室温系统中存在Jahn-Teller效应。
The metastable extension of solid solubility of certain simple metals or metalloids in Ag has been studied by means of the lattice parameters measurement when the aUoy specimens quenched from melts. 用点阵参数法研究了在熔体淬火条件下若干简单金属与类金属在Ag中固溶度的亚稳扩展。
The lattice parameters, the bulk modulus, the pressure derivation of bulk modulus and the elastic constants of superconducting MgB_2 are calculated using the full-potential linearized muffin-tin orbital ( FP-LMTO) scheme within the generalized gradient approximation correction ( GGA) in the frame of density functional theory. 利用全势线性Muffintin轨道(FP-LMTO)方法,结合在密度泛函理论框架下的广义梯度近似,研究了六角密堆积结构超导体MgB2的晶格参数,弹性常数,以及体积模量及其对压强的微分。
With the content of F~-increasing, the lattice parameters increased. 随着F~-含量的增加,晶胞参数增大;
The lattice parameters solved from the indexing program, have been refined by the least squares method. 由指标化程序得到的晶胞参数,最后用最小二乘法进行精化。
The phase equilibrium and transition in the pseudo-binary system Ba_2CaWO_ ( 6~-) Sr2CaWO_6 have been investigated by means of DTA, X-ray powder diffraction, precise measurement of lattice parameters and other methods. 用差热分析、X射线物相分析和点阵常数的精确测定,研究了Ba2CaWO6-Sr2CaWO6赝二元系的相平衡和相变。
A method for solving the normal state equations to obtain the lattice parameters by using of the inverse matrix to discriminate the stability of the pair line least square equations is given in this paper. 本研究提出一种用逆矩阵范数数值对线对法最小二乘方程组的稳定性进行判别,选择常态方程而求解晶胞参数的方法。
The influence of valence state of Ti ions on the lattice parameters is discussed. 讨论了Ti离子价态的变化对晶格参数的影响。
It is shown that calculated crystal lattice parameters are in accord with the values of experiment. 计算得到的晶格参数与实验值吻合较好。
Based on the generalized gradient approximation ( GGA) of density functional theory ( DFT) and the full-potential linearized augmented plane wave ( FLAPW) at the level including all electrons, the lattice parameters of graphite are calculated and optimized. 在全电子水平上,基于广义梯度近似(GGA)的密度泛函理论和全势能线性缀加平面波方法(FLAPW)计算了石墨的晶体参数和弹性波速;
The growth morphology, the lattice parameters, the main dielectric and pyroelectric and ferroelectric parameters of these crystals has been systematically studied. 系统地研究了有机双取代基TGS系列晶体的生长形态、晶胞参数、主要的介电、热释电和铁电性能参数等,发现这几种双有机取代基TGS晶体的品质因子有不同程度地提高。
In this paper, we have described the X-ray divergent beam technique, i. e. the production of Kossel lines and their applications to the deter-mination of the orientation of single crystals and to the precision measure-ment of lattice parameters. 本文介绍了X射线发散束Kossel线的产生及其在单晶定向和点阵参数测定方面的应用。
Bond length-electron number equation for solids and characteristic lattice parameters 晶体的键距-电子数方程组及特征晶格参量
Based on the equation of states at zero pressure, the lattice parameters, elastic constants and bulk modulus of anatase are obtained. 基于常压下的状态方程作者得到了锐钛矿的晶格常数、弹性常量和体变模量。
The experiment results indicate that the crystal structure of the samples is fcc structure, the lattice parameters are expanded. 试验结果表明:约束弧等离子体法制备的铝纳米粉晶体结构为fcc结构的晶态,与体材料相比晶格常数发生膨胀。
That the little change of lattice parameters will bring obvious effect to properties of the pigments; 晶胞参数的微小变化对铬绿颜料性能有明显影响;
With the increase of Ag-doped, lattice parameters decrease. 计算掺Ag的La0.67Ca0.33MnO3多晶样品的晶格常数发现,随着掺Ag量的增加,晶格常数减小。
The crystal lattice parameters, refractive index and the optical damage threshold were tested. 测定了晶体的晶胞参数、折射率和激光损伤阈值。
Lattice parameters are the important crystal structural parameters of polycrystalline materials. 晶胞参数是多晶材料晶体结构的重要参数。
A new method dealing with the determination of crystal lattice parameters is presented in this paper and its application to that of aluminum plate is also discussed. 介绍了晶胞点阵参数精确测定的方法,并精确测定了铝板的精胞点阵参数。
Relationship between lattice parameters and compositions of molecular beam epitaxial Hg_ ( 1-x) Cd_xTe films Hg(1-x)CdxTe分子束外延薄膜晶格参数与组分关系的研究
The crystal lattice parameters and specific surface area of precipitated particles have changed obviously. 通过计算,不同条件下得到的产物的晶格参数及比表面有明显变化。
The effects of composition x on the structure, lattice parameters and UV-Vis absorption properties were investigated. 我们调查了组成x对产物结构,晶胞常数和紫外-可见吸收性能的影响。
The lattice parameters increased along with the increase of Zr content. 随着Zr含量的增加,点阵参数逐渐变大。
The reason for the disappearance and generation of the impurity phases in co-doped samples was discussed according to the change rules of the variation of lattice parameters caused by Ni doped and K, Na doped, respectively. 利用Ni掺杂和K、Na掺杂引起的SrCuO2晶格常数的变化规律,分析了共掺杂中杂相消失和生成的原因。