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形核     
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  nucleation
     Heterogeneous Nucleation of α-Mg, Mg_2Si in Mg Alloys and Development of Relevant Master Alloys
     镁合金中α-Mg、Mg_2Si相的异质形核机制与相关中间合金研究
短句来源
     VOID NUCLEATION IN TENSILE DEFORMATION PROCESSES OF C-Mn STRUCTURAL STEEL——Ductile Fracture Mechanisms in a Structural Steel (Ⅰ)
     C-Mn结构钢拉伸变形过程中空穴形核的研究——结构钢韧性断裂机理研究之一
短句来源
     THE EFFECT OF PRIOR AUSTENITIC GRAIN BOUNDARIES ON NUCLEATION OF(225)_γ MARTENSITE IN STEELS
     钢中原始奥氏体晶界对(225)_γ马氏体形核的影响
短句来源
     EFFECT OF AUSTENITE DEFORMATION AND COOLING RATE ON THE NUCLEATION OF γ→α TRANSFORMATION
     奥氏体形变及冷却速率对γ→α相变形核的影响
短句来源
     MECHANISM OF NUCLEATION OF PRO-EUTECTOID FERRITE IN γ→αTRANSFORMATION OF CONTROLLED ROLLING STEELS
     控轧钢的γ→α相变中先共析铁素体的形核机制
短句来源
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  nucleating
     Mg 17 Al 12 eutectie phase and Cu 5Zn 8 phase have been found nucleating and growing on the SiC. Their relationships are -01] SiC ‖-1] Mg 17 Al 12 , (011-1) Mg 17 Al 12 and Cu 5Zn 8 ‖-1-0] SiC ,(001) Cu 5Zn 8 ‖(0001) SiC .
     Mg17Al12相及Cu5Zn8相能在SiC颗粒表面形核长大,且它们之间的位向关系为:[11-01]SiC‖[11-1]Mg17Al12,(011-1)SiC‖(110)Mg17Al12和[100]Cu5Zn8‖[21-1-0]SiC,(001)Cu5Zn8‖(0001)SiC。
短句来源
     It has been found that magnesium promotes nucleating and growing of Al2O3 in Al2O3/Al composite by analysis of thermodynamics and kinetics. The properties of Al2O3/Al composite were improved by microstructure refining due to spinel (MgAl2O4) decomposing.
     热力学与动力学分析表明:镁促进了Al2O3的形核和长大,Al2O3/Al复合材料的性能改善是由于尖金石(MgAl2O4)的分解所导致的组织细化。
短句来源
     But too high or too low content of Mg in the alloy is disadvantageous for Al2O3 nucleating and growth.
     但在合金中,镁含量太高或太低都对Al2O3的形核和长大不利。
短句来源
     The thermal-fatigue cracks nucleate in the areas of maximum strain alongthe direction of the slip line field. The nucleating number of 4Cr5MoSiV1 steelis above ten times of the 3Cr2W8V steel.
     热疲劳裂纹沿滑移线场方向,在最大应变区形核,在形核数量上,4Cr5MoSiV1钢为3Cr2W8V钢的十几倍;
短句来源
     The results show that under the conditions of adding a small quantity of α-Al2O3 seeds, the nucleating temperature can be lowered, the transition rate enhanced effectivelly, the transition of Al2O3 from θ to α phase can be completed at a lower temperature, and the grain accumulation can also be influnced to a certain extent.
     结果表明,少量α-Al2O3籽晶的添加能降低形核温度,有效的提高相转变速率,在较低的温度下完成θ→α-Al2O3的相转变,同时对聚合生长也产生一定的影响.
短句来源
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  forming nucleus
     The result reveals that σ -phase predominates by forming nucleus and growing along the boundaries; There is an orientation relationship between σ -phase within austenitic grains and the austenitic matrix:(0 0 1) σ//(1 1 1) r [1 1 0] σ//[1 1 2] r; The forming of σ -phase fits the equation of Johnson-Mehl;
     结果表明 ,σ相首先在焊缝奥氏体晶界形核长大 ,奥氏体内σ相与基体存在( 0 0 1 ) σ∥ ( 1 1 1 ) γ、[1 1 0 ]σ∥ [1 1 2 ]γ 位向关系 ,σ相的形成符合 Johnson- Meh1方程 ;
短句来源
     Forming Nucleus Rule of Liquidus Casting Aluminum Alloy A356
     A356铝合金液相线铸造形核规律
短句来源
     ② Forming nucleus and growth of {111} orientation grains were more precedent than that of other orientation grains at finished recrystallization stage because of its relatively high storage energy in cold-rolled deformation microstructure;
     由于具有较高的冷轧变形储能,{111}取向的晶粒优先形核、长大;
短句来源
     Stacking fault energy plays an important role in the decompounds of dislocation and the martensitic transformation behavior of shape mechanism as forming nucleus with stacking fault.
     在位错的分解以及以层错形核为变形机制的马氏体相变中层错能扮演了重要的角色。
短句来源
     The cause of high coercivity is that the Al addition can fine the grains and the forming nucleus of antimagnetized domain is difficult.
     使磁体获得高矫顽力的原因是添加元素Al可以细化晶粒,还能使反磁化畴难以形核
更多       
  a nucleation
     The hydrogen absorption and desorption temperatures of pure Mg film are 593 K and 653 K, respectively and its hydriding reaction follows a nucleation and growth mechanism.
     纯Mg膜的吸放氢温度分别为593和653 K,其吸氢过程遵循形核长大机制。
短句来源
     The microstructure evolution is a nucleation dominated process, in which the interchange between <001>nd <111>exture appeared.
     在这种以形核为主的过程中出现了<111>和<001>两种织构的交替变化.
短句来源
     DIFT is a nucleation dominant process, i. e. theу→α transformation is mainly accomplished by continuous nucleation, whereas the CCT of deforming austenite is a grain growth dominant process.
     DIFT是一个形核主导的过程,而变形奥氏体的连续冷却相变是一个晶核生长主导的过程。 DIFT由于相变伴随形变进行,奥氏体内位错密度可以保持较高水平,从而可以获得较高的形核率;
     A Nucleation Mechanism on Bainitic Transformation in 9SiCr Steel
     硅钢中贝氏体的形核机制
短句来源
     The increase in recrystallizing temperature is caused by the nail-up effect of highly dispersed ScAl3 precipitates on dislocation,and the recrystallization process presents itself a nucleation mechanism involving not only the subgrain but the subgrain growth.
     细小,弥散的ScAl_3对位错的钉扎作用是合金再结晶温度高的原因; 再结晶过程为亚晶聚合及亚晶长大形核机制的双重作用。
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  nucleation
Based on discussions on the nucleation mechanism of particles in the polymerization system, the influences of monomer weight added dropwise, and amounts of initiator and emulsifier on the size and distribution of PS particles were investigated.
      
Isothermal crystallization kinetics of poly(trimethylene terephthalate) under the influence of self-seeding nucleation
      
The effect of self-seeding nucleation on the crystallization behavior of poly(trimethylene terephthalate) (PTT) was studied.
      
Differential scanning calorimetry (DSC) indicated that the crystallization temperature of PTT notably increased after self-seeding nucleation.
      
Self-seeding nucleation, leading to a decrease in active energy for crystallization and chain folding work, promotes the overall crystallization process of PTT.
      
更多          
  nucleating
The DSC results suggest that the mPE component shows a nucleating effect, and could increase the overall degree and rate of PTT crystallization, while the addition of a compatibilizer might slightly diminish these effects.
      
Restriction endonucleases from various bacterial strains displaying an ice-nucleating activity
      
Six strains containing site-specific endonucleases II were selected from a collection of 45 ice-nucleating bacterial strains isolated from rhizosphere of plants growing in various geographical regions.
      
The centrosome keeps nucleating microtubules but looses the ability to anchor them after the inhibition of dynein-dynactin compl
      
Asymptotic behavior of thermodynamic characteristics of nucleation on small macroscopic nuclei of soluble surfactants at their complete dissolution in a nucleating droplet is studied.
      
更多          
  forming nucleus
Random freezing temperatures observed for one ice-forming nucleus in three different physical conditions.
      
  a nucleation
In the English-language literature, this phenomenon is commonly referred to as a nucleation burst.
      
In first-order wetting transitions the decay of metastable states starts with a nucleation process on the wall of the system.
      
A nucleation pathway occurs through a stepwise process including the formation of extrinsic (pretreatment) or intrinsic (in situ) nucleation sites, followed by formation of carbon-based precursors.
      
The Kolmogorov-Johnson-Mehl-Avrami model, which is a nucleation and growth Poissonian process in space, has been implemented by taking into account spatial correlation among nuclei.
      
Condensation of nano-droplets in a supersaturating vapor decomposes in two steps: the formation of a nucleation center, also called critical nuclei or nucleation seed, and the growth sequence, by accretion of further atoms on the nucleation center.
      
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