1) mechanical twin
机械孪晶
1.
Many twins identified as mechanical twins appear at the bottom of the as grown crystal.
在用掺钾的助熔剂提拉法生长近化学计量比LiNbO3 晶体时,长出的晶体尾部很容易出现孪晶裂纹现象,这种孪晶被认为是机械孪晶。
2.
The results showed that microstructure after CSR consists of a large number of mechanical twins.
结果表明:异步轧制后显微组织中出现大量机械孪晶;样品表面粗糙度显著降低,硬度明显提高。
2) Praw texturing
机械孪生
3) twins
[英][twinz] [美][twɪnz]
孪晶
1.
Macro-texture and Micro-twins in Free-standing Diamond Films;
CVD自支撑金刚石薄膜中的宏观织构与微观孪晶
2.
The study of bainite appearance and twins sub-structure in 34CrNi3MoV;
34CrNi3MoV钢贝氏体的形貌及孪晶亚结构
3.
Formation Mechanism of Twins in AZ61 Magnesium Alloy during Aging
时效处理AZ61铸造镁合金中孪晶的形成机理
4) twin
[英][twɪn] [美][twɪn]
孪晶
1.
Simpleness of Indexing F.C.C Twin Diffraction Patterns;
f.c.c孪晶衍射花样指标化的简化
2.
Analysis of the Twin Phenomenon in LEC-InP Crystal;
LEC─InP晶体中孪晶现象的分析
3.
A Modified Approach to the Calculation of the Relative Rotation Matrix for Twin Region in the Crystallographhy of Martensitic Phase Transition;
马氏体相变晶体学中孪晶区域相对转动矩阵计算方法的改进
5) twinning
[英]['twiniŋ] [美]['twɪnɪŋ]
孪晶
1.
The result show that twinning take place in all the grains in AZ31 magnesium alloy rolled at 300 ℃.
实验结果表明,300℃轧制后的AZ31镁合金薄板材的组织中存在大量的孪晶。
2.
The twinning process in a magnesium AZ31 alloy with initial texture is quantitatively analyzed during plane-strain compression by means of orientation mapping based on EBSD technique.
随形变量的加大及孪晶的增多,86。
3.
However,the current crystal plasticity theory mainly based on that slip accounted for plastic deformation,thus it was limited one applying to predict something responded to plastic deformation caused by both slip and twinning for a material.
现有的晶体塑性理论框架核心主要基于由滑移引起的塑性变形机制,在预测由滑移和孪晶引起塑性变形的材料力学响应方面还不够完善。
6) twin crystal
孪晶
1.
The defects includ twin crystal and hole.
用ＳＥＭ方法观察分析了ＣＶＤ金刚石薄膜表面的缺陷形貌和结构，直观的两种缺陷为孪晶和孔洞。
2.
Flocculation and coalescence of crystal nuclei lead to twin crystals and further to form T-grains.
晶核的絮凝和聚结导致了AgBr孪晶的产生,从而进一步形成T颗粒,本文综述了最近在这方面的研究结果,并讨论了T颗粒形成的机理;同时还就物理成熟条件对T颗粒尺寸和形状的影响进行了讨论。
3.
The results show that solid solubility was inereased and twin crystal was found in heat effect area.
基体与熔覆层间的热影响区内，基体元素的固溶度明显增加，位错能降低，在热影响区还发现了孪晶产生。
补充资料：孪晶界
孪晶界
dary twin bour
孪晶界twin boundary一种特殊的晶界。孪上的原子正好座落在相邻两晶粒的晶格位置上。由界上没有显著的原子错排，这种晶界是共格晶界，界能要比一般晶界的低得多。 最常见的共格晶界即为共格孪晶界，界面两侧的位向满足反映对称关系，反映面即称为孪生面。给出不同晶体结构的孪生面。 晶体的孪生面界晶晶曰拍于其昆体友中四一仪晶体结构孪生面面心立方 {111}体心立方 {112}密集六角{1’0I2}LBC么△‘BC昆体 面心立方晶体中的{111}面是按ABC ABCZ的次序堆垛起来的，应用堆垛符号表示，即△△△△△△。如果从某一层起堆垛层序颠倒过来变成;ABA CBA CB或△△△△甲甲甲甲，上下两部分就形成了孪晶关系(见图)。可以看出，所有原子“孪生面上)的第一近邻的数目和距离都和完整晶体相有改变的只是孪晶界面上的第二近邻的关系，它们2心立方的ABC型转化为密积六角的BAB型。 如果孪生的第一个丈括水面扮同师面心立方晶体的孪生关系面没有穿过整个晶体，少就是一个肖克利不全位相当于共格孪晶界的一，阶，称为孪生位错。 孪晶可以在形变过才产生，称为机械孪晶;注能在晶体生长过程或退止程中产生，称为生长孪健退火孪晶。(吴希俊猎得栋治冲呵挝域)
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