polycrystal materials

Calculation of X-ray elastic constants of polycrystal materials using geometrical average model

用几何平均模型计算多晶材料的X射线弹性常数

Influence of microstructure on electrical properties and its dispersion of polycrystal materials

显微结构对多晶材料的电学性能及其色散的影响

The effects on of the ion of large octahedral site preference energy an synthesis of perovskite-Type PZN polycrystal materials were investigated by XRD .

用XRD法研究了八面体择位能大的离子对合成钙钛矿型Pb（Zn（1/3）Nb（2/3））03[PZN]多晶材料的影响。

Therefore , research on the cyclic plastic behaviors of polycrystal materials under micro-scale and its underlying mechanism is not only of great significance in mechanic theory but also of important material value in real engineering projects .

因此，对微尺度下多晶材料的循环塑性行为及其内在机理进行研究，不但具有重要的理论意义而且具有实际工程价值。

The dispersion curves of resistivity and dielectric constant will flatten ( or the dispersion regions broaden ), and the dielectric loss factor will decrease due to the nonhomogeneity of microstructure of polycrystal materials .

显微结构的不均匀性使介电常数和电阻率的色散曲线平化（或色散区域宽化）与介电损耗因子的峰值减小。

The nonuniqueness of spontaneous deformations and of directions in spontaneous polarization , and the inevitable existence of various singular surfaces in polycrystal materials cause the spontaneous configuration of ferroelectric ferroelastic materials to have intricate structures .

铁电材料在自极化过程中自变形和自极化方向的不唯一性，以及多晶材料中存在各种不同方向晶界的不可避免性，使得其自极化稳定构形具有极其复杂的结构。

Infrared polycrystal optical materials ZnS were manufactured using chemical vapor deposition ( CVD ) method in this paper .

采用化学气相沉积方法成功地生长出硫化锌多晶红外光学材料。

The relationship between strength and the grain size of traditional polycrystal metal materials conforms to the H-P relationship .

传统多晶金属材料的强度与晶粒尺寸的关系符合H-P关系，然而，对于纳米金属材料，随着晶粒尺寸的减小，强度与晶粒尺寸的关系不符合H-P关系。

This paper analyzes the important positions of stealth materials in stealth technology , and introduces the study of application status of chiral material , nano metrical , electro-conduction polymer , polycrystal femur materials in detail .

分析了隐身材料在隐身技术中的重要地位，较详细地介绍了手性材料、纳米材料、导电高聚物材料、多晶铁纤维材料的研究和应用现状。

Tb-Dy-Fe twin crystal or polycrystal magnetostrictive materials are normally employed as driving unit in magnetostrictive actuator , yet the crystal boundary and twin crystal structure in the Tb-Dy-Fe materials hinder the movement of domain walls so that the displacement output under low magnetic field is rather small .

磁致伸缩型微位移致动器通常采用多晶或孪晶结构材料作为驱动单元，由于晶界和孪晶界对畴壁的移动具有阻碍作用，其低场下的位移输出较小，调控精度受到较大影响。