1) polycrystal
[,pɔli'kristəl]
多晶体
1.
A dynamic explicit finite element code and rate-dependent elastic-viacoplasticity polycrystalline model were used to simulate the simple tension test of annealing FCC polycrystal and 6111-T4 aluminum alloy sheet metal.
采用动力显式有限元方法和速率相关的多晶体弹性-粘塑性有限元分析模型模拟退火FCC多晶体和6111-T4铝板的单向拉伸过程。
2.
A polycrystalline material is an aggregate of tiny crystallites separated by grain boundaries.
多晶体材料的宏观力学性质与晶粒的化学成分和多晶体的微结构(晶粒的尺寸、取向分布、边界结构)有关,研究多晶体微结构与材料宏观力学性质的关系具有重要的理论意义和工程应用背景。
3.
With the KBW self-consistent model and the single crystal hardening law, previously proposed by Sun and Hwang, the cyclic stress-strain response of polycrystalline copper over both high and low-cycle fatigue ranges has been obtained.
采用ＫＢＷ自洽理论和以前提出的单晶硬化律，对铜多晶体的循环应力－应变曲线进行了理论模拟，其范围包括高周疲劳阶段和低周疲劳阶段。
2) polycrystalline
[,pɔli'kristəlain]
多晶体
1.
Geometrical analysis on plastic deformation charateristics of polycrystallineaggregates proved that the total length of dislocation lines that cat through a unit volume is ininverse proportion to the grain size under given deformation strains, while the total length ofdislocstion lines emitted per unit area of grain boundary is independent of grain size.
通过对金属多晶体塑性变形几何分析表明，塑性应变量一定时，扫过单位体积晶体的位错线长度与晶粒尺寸成反比，从理论上证明了单位面积晶界所发射的位错线长度与晶粒尺寸无关，而晶粒间协调变形时晶界凸起或凹陷的畸变量与晶粒尺寸成正比。
2.
The solution was saturated by carbon from the inner wall of high pure graphite crucible in which Si was melted at about 1550℃, the polycrystalline SiC lamella was formed in the crucible underside.
实验结果表明所制备样品为 3C- Si C多晶体。
3) polycrystals
多晶体
1.
Meso-deformation and Constitutive Relations of Sliding Polycrystals;
本文选择考虑晶界滑错的多晶体(简称为多晶滑错体)作为研究对象,力图从显微实验力学和细观力学分析的结合上研究它的细观变形过程和总体本构关系。
4) polysynthetically twinning crystal
多孪晶晶体
1.
Effect of α_2 lamellars slip systems on yield stress ofpolysynthetically twinning crystals for γ-TiAl;
α_2相滑移系对γ-TiAl基多孪晶晶体屈服强度的影响
5) Multisublattice compound
多晶格晶体
6) multi-crystal system
多晶体系
补充资料：多晶体
分子式：
分子量：
CAS号：
性质：不为同一个点阵所贯穿，而是由很多取向不同而机遇的单晶颗粒拼凑而成的固体样品。例如化学合成中得到的粉末状样品。
分子量：
CAS号：
性质：不为同一个点阵所贯穿，而是由很多取向不同而机遇的单晶颗粒拼凑而成的固体样品。例如化学合成中得到的粉末状样品。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条