查询词典 submicron

This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.

中文摘要：本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究，取得了如下主要结果：1）在前期研究中，探讨了基体的梯度分布对孔洞长大和聚合的影响；2）基于含孔洞的无限大体模型，探讨了孔洞形状和孔洞尺寸对其长大的耦合作用，结果表明：可能存在一个与材料特征长度相关的临界孔洞尺寸，当椭球孔洞的等效半径小于临界孔洞半径时，孔洞的长大受到明显抑制；3）通过引入基体/夹杂界面能的概念，分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响，结果表明：颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状，因此，孔洞的形核机理是尺寸相关的；4）采用一种特殊的正交曲线坐标系和引入"核函数"的概念，"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势，它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围；5）基于含椭球和球形夹杂的体胞模型，初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。

It is specially suited to be used in micromanipulation system with micron to submicron.

微操作手是微操作系统关键的组成部分。

Through the direct gas reaction, In〓O〓 regular octahedron particles with size of micron or submicron and nanowires were fabricated.

用金属铟与氧气反应制备了氧化铟晶粒及纳米线。

As a result, metal silicide has been developed used in deep submicron application for reducing the parasitic resistance and to improve device performance.

因此，为了降低寄生阻抗和改善元件的性能，金属矽化物的技术被发展在深次微米的应用上。

The research shows that the stage has submicron accuracy and good dynamic characteristics.

实验结果表明，平台具有亚微米级的定位精度以及良好的动态特性。

Such as new typed air classifier can meet the requirements of submicron classification.

新设计的气流分级机可达到对颗粒进行亚微米分级的要求。

Apparently, flat DRC is not able to fit the demand of today's submicron chip design.

IC版图的设计规则检查是保证芯片设计最终成功的重要手段。

With the development of deep submicron technology,Network on Chip has already become a hot topic.

随着深亚微米技术的发展，片上网络（Network on Chip，NOC）已成为芯片设计的热点。

The most pressing bottleneck they need to overcome are semiconductor intellectual properties and advanced deep submicron design skills.

他们所要突破的最紧要的瓶颈是半导体知识产权和先进的深亚微米设计技术。

The morphology and particle size of gelatin submicron particles were observed by scanning electron microscopy.

用扫描电子显微镜观察了明胶亚微米粒子的形貌和粒径。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。