非均匀形核

铌硅锰非均匀形核表面淀积掺杂PTC陶瓷

Barium titanate based PTC ceramics doped by Nb-Si-Mn heterogeneous nucleation surface deposition method

La掺杂BaTiO3陶瓷的制备与性质（Ⅰ）&非均匀形核表面淀积包覆法

Preparation and Properties of La-Doped BaTiO_3 Ceramics (ⅰ): By a Heterogeneous Nucleation Processing Technique

生成的Mg3Sb2相与α-Mg基体具有相同的密排六方结构，满足非均匀形核的基本条件，是良好的异质形核核心；

Mg_3Sb_2 had the same close-packed hexagonal structure as a-Mg , which conformed to the fundamental of heterogeneous nucleation , and was the favorable nucleating center .

利用非均匀形核法制备了铜包覆纳米SiC复合粉体，通过XRD、SEM、EDS、TEM等手段对复合粉体进行了微观测试和表征。

The nano SiC particles coated by Cu layer were prepared by the heterogeneous nucleation method . The microstructure and morphology of the composites were investigated by XRD , SEM , EDS and TEM .

纳米SiO2颗粒表面Cu包覆层的形成机制主要是非均匀形核作用，包覆的结构取决于Cu晶粒在纳米SiO2颗粒表面的沉积以及对复合颗粒的团聚控制。

The formation of coating structure mainly depends on heterogeneous nucleation mechanism , and the coating structure is determined by the deposition of Cu crystal grains on nano SiO2 particle and the control of agglomerated composite particles .

倾斜式冷却剪切流变制备半固态AlMg合金过程中，合金在冷却板表面非均匀形核，并受到重力的剪切作用，合金组织逐渐从粗大等轴晶网络演化为细小的球形晶；

During manufacturing semisolid Al-Mg based alloy by rheocasting of incline cooling and shearing , melt alloy heterogeneously nucleated on the incline-cooling plate surface and was sheared under the gravity force , and alloy microstructure gradually evolves from big net-work composed of equiaxed dendrites to small spherical grain .

采用非均匀形核法制备了Cu包覆纳米SiO2复合颗粒，利用X射线衍射仪、扫描电镜、能谱仪及透射电镜等分析手段对复合颗粒进行了表征，并探讨了包覆结构的形成机制。

The Cu coated nano SiO2 composite particles are produced by the method of heterogeneous nucleation . These composite particles are characterized through the analyzing means of XRD 、 SEM 、 EDS 、 TEM and ED , and the formation mechanism of coating structure is also discussed in this paper .

材料液滴非均匀形核时的热物理特性

Thermal Physical Properties of Materials with Non homogenous Nucleation of Liquid Drop

熔覆层组织晶粒形核的非均匀形核特征显著。

The grain nucleation has obvious feature of heterogeneous nucleation in microstructure cladding .

同时也可以通过改变这些参数来增加反应的驱动力，增大非均匀形核的成核率。

And the driving force of chemical reaction and the heterogeneous nucleation rate can also be increased by adjusting these parameters .

确定了区分均匀形核和非均匀形核的临界应变。

The critical strain which distinguishs the uniform nucleation and the non uniform nucleation has also been determined in this article .

就无机水合盐的过冷机理及非均匀形核的动力学机理进行了探讨，加入成核剂是降低过冷度的有效措施。

This paper discusses the nucleating mechanisms of the salt hydrates and comes to the conclusion that adding suitable nucleating agents reduces significantly the degree of supercooling .

在经典非均匀形核理论的基础上给出了形核动力学方程，并对影响形核动力学的诸因素进行了讨论。

The nucleation kinetics equation for ferrite under austenite deformation was de-rived based on the classical heterogeneous nucleation theory , and the factors affecting nucleation kinetics were also discussed .

另一方面，激光合金化的凝固形核机制主要为异质外延形核和非均匀形核。

On the other hand , the solidification structures of laser alloying have a series of specialities , and their nucleation mechanisms are mainly heteroepitaxial growth and heterogeneous nucleation growth .

氧化铝晶粒表面在CaO-Al2O3-SiO2系玻璃非均匀晶化形核时的作用研究

Effect of the Surface of Alumina Crystal Grain on the Heterogeneous Nucleation of CaO-Al_2O_3-SiO_ 2 System Glasses