grain boundary diffusion
英 [ɡreɪn ˈbaʊndri dɪˈfjuːʒən]
美 [ɡreɪn ˈbaʊndri dɪˈfjuʒən]
n. 晶粒间界扩散；晶界扩散
双语例句
- But the creep resistance of Y-TZP/ SiC is still poor due to the grain boundary diffusion process of Y-TZP.
但由于Y-TZP陶瓷的晶界扩散速率大，使Y-TZP/SiC的抗蠕变性能仍较差。 - The deformation percentages of GBS ( grain boundary sliding), DC ( diffusion creep) and DS ( dislocation sliding)& the three kinds of deformation mechanism under different deformation rate generally recognized at present are measured and calculated respectively.
对目前公认的晶界滑动（GBS）、扩散蠕变（DC）、位错滑移（DS）三种变形机理在不同应变速率下变形时各自所占的比例进行了测定和计算。 - The composite powders after MA are fine and flat. The formed defects such as free surface, grain boundary, sub grain boundary and dislocation decrease diffusion activity energy, which is the important reason for developing super saturated solid solution and promoting the second phase precipitation.
MA导致复合粉末细化与扁平化，自由表面、晶界、亚晶界以及位错等晶体缺陷的急剧增加而明显地降低了扩散激活能，它是形成过饱和固溶体和促进第二相析出的主要原因。 - The activated sintering kinetics of boron carbide with carbon as activator were also researched, the results showed that the main transport mechanism was grain boundary diffusion.
研究了掺碳碳化硼烧结动力学，得出其物质迁移机制主要为晶界扩散。 - In this paper, the contact reaction between Aluminum and Copper and its liquid phase behavior were studied by means of experiment simulation and analysis based on the theory of surface and grain boundary diffusion in metallurgy.
采用模拟的方法，系统研究了Al/Cu接触反应及其液相行为的特点，并运用金属学中表面扩散和晶界扩散等理论进行了理论探讨。 - The results show that the process of rare-earth catalytic penetration fines the grain for γ '-phase obviously, and increasing surface defects of the grain boundary is beneficial to the diffusion of the hydrogen atoms.
结果表明，稀土催渗使γ'-Fe4N晶粒显著细化，晶界面缺陷的增加有利于氮原子的扩散。 - A TEM study of grain boundary in diffusion nb_3sn film
扩散Nb3Sn薄膜中晶界的TEM研究 - Grain boundary diffusion is dominating for copper diffusion in polycrystalline Ta and TaN films. At high temperature, copper diffuses towards Si substrate through these fast diffusion paths and silicides of Ta and Cu are formed. Based on the grain boundary theory of J.
Cu在溅射生长的多晶Ta、TaN阻挡层中的扩散以晶界扩散为主，在高温退火条件下，Cu通过这种快速通道向Si衬底扩散，形成了Cu和Ta的硅化物以及硅的氧化物。 - It is deduced that the main sintering mechanisms shill be volume diffusion and grain boundary diffusion for pure boron carbide and grain boundary diffusion for carbon_doped boron carbide showing activated sintering.
纯B4C的烧结致密化机制为体扩散和晶界扩散，而掺碳B4C的烧结机制主要为晶界扩散，因此，掺碳对B4C起到了活化烧结的作用。 - The phenomena of grain boundary sliding ( GBS), diffusion creep, dislocation movements, and striated bands were observed.
试验中观察到晶界滑移和晶粒转动、扩散蠕变、位错及动态再结晶等现象。 - It is shown that grain boundary sliding is the dominate flow mechanism and is accommodated by intergranular dislocation slip and diffusion creep.
晶界滑动是超塑变形的主要机制，晶内位错滑移和扩散蠕变则对晶界滑动起着协调作用。 - According to the profiles and Hall formula the interdiffusion coefficients have been calculated and the relative grain boundary diffusion coefficients of the system have been determined by the Leclaire's formula.
根据银的浓度剖面分布及Hall公式算出Au-Ag系统的互扩散系数。由Leclaire公式计算出该系统的晶界扩散系数。 - Grain sliding controlled by grain boundary diffusion is the main mechanism for low temperature superplastic behavior.
晶界扩散控制晶界滑动是低温超塑行为的主要机理。 - The grains grow mainly by the grain boundary diffusion. The lattice parameter expansion is caused by an increase of the repulsive dipolar interactions at the surfaces of particles.
晶粒主要以晶界扩散形式进行生长，晶格参数膨胀是由晶粒表面的排斥偶极距所造成的。 - And the energies of interdiffusion and grain boundary diffusion have been figured out by the Arrhenius equation.
从Arrhenius方程得出互扩散及晶界扩散激活能。 - The formation, growth of the sintering necks and the spheroidization of the pores, which are mainly controlled by surface diffusion and grain boundary diffusion during the sintering of Mo powder, were simulated respectively by using both four-ball and five-ball model.
采用相场法模拟了表面扩散和晶界扩散机制共同作用下的四球模型和五球模型中Mo粉末压坯微粒间烧结颈长大以及孔隙的演化过程。 - This seems due to the grain boundary sliding and diffusion hindered by precipitation of intergranular carbides, so the nucleation and growth rate of crack or cavity are reduced.
结果表明，晶界碳化物大大提高了合金断裂寿命与延性、这是由于晶界碳化物的析出阻碍了晶界滑移与扩散，从而降低了裂纹或空洞形核与生长速率。 - The effects of phosphorus on mechanical performance of steel are analyzed on the basis of the influence mechanism of phosphorus on grain boundary cohesive force, grain boundary diffusion and grain boundary energy. The factors influencing phosphorus segregation on steel grain boundaries are also stated.
以磷对晶界结合力、晶界扩散和晶界能的影响机理为基础，分析了磷元素对钢力学性能的影响和磷在钢中发生晶界偏聚的原因。 - The creep behavior of Ti alloys is complicated and can usually be divided into low temperature creep, grain boundary slip creep, diffusion creep and dislocation creep, so on.
钛合金的蠕变行为是非常复杂的。通常蠕变行为可以分为低温蠕变、晶界滑移蠕变、扩散蠕变和位错蠕变等。 - It may also promote the spheroidization of the grain boundary carbide, decrease the diffusion coefficient of grain boundary and increase the activation energy for creep.
并降低晶界扩散系数，提高其蠕变激活能； - It was shown that the mechanism under superplastic deformation for these two alloys is mainly due to the grain boundary sliding together with the coordination of diffusion creep and dislocation slip.
结果表明，在超塑性变形条件下，两种合金都显示以晶界滑动为主的，由扩散蠕变和位错滑移所协调的复合变形机制。 - ZrO_2 reacts with CaO and forms CaZrO_3, and CaZrO_3 exists in the main grain boundary. CaZrO_3 provides a new migratory approach in diffusion, which promotes sintering.
加入的ZrO2与CaO反应生成了CaZrO3，存在于主晶相的晶界中，为离子扩散提供了迁移的途径，从而促进了烧结。 - Decreasing the grain size to~ 0.1 μ m further, the region for power-law creep might be replaced by diffusion creep controlled by grain boundary diffusion.
当晶粒尺寸减小到0.1μm时，幂律蠕变区几乎由晶界扩散控制的扩散蠕变区所代替。 - The kinetic equation revealed that both the sintering mechanism and the grain growth of YAG ceramic were dominated by grain boundary diffusion.
动力学方程结果表明：YAG的烧结和晶粒生长动力学受晶界扩散控制。 - Rare earth elements which segregated in the grain boundary can slow down the rate of grain growth and hinder the diffusion of nitrogen and carbon atoms. Therefore, the thermo-stability performance of the coating with addition the rare earth element is greater than that of without added.
稀土在晶界的偏聚能减缓晶粒长大的速度并阻碍氮碳的扩散，所以添加稀土后覆层的热稳定性比不添加稀土的覆层热稳定性高。 - The Oxygen molecules and copper ions exchanged rapidly through the defects in oxide film. The oxidation reaction was completed in the form of grain boundary diffusion.
氧气分子和铜离子通过缺陷进行快速离子交换，以晶界扩散的形式完成氧化反应。 - The sintering mechanisms include grain boundary migration, surface diffusion, vacancy creation and annihilation.
烧结机制考虑了表面扩散，晶界迁移，空位的产生和湮灭。 - The strain rate sensitivity of Mg-Zn-Ca alloy was increased with increasing deformation temperature or decreasing grain size during the compression at elevated temperatures, the main deformation mechanism was dislocation creep controlled by grain boundary diffusion.
随着变形温度的升高和晶粒尺寸的减小，Mg-Zn-Ca合金在高温压缩变形过程中的应变速率敏感性增加，主要的变形机理为晶界扩散控制的位错蠕变机制。