1) heterogeneous nucleation
非均质形核
1.
The effect of solid compounds promoting heterogeneous nucleation can be interpreted as an electrostatic effect between substrates and nucleated phases,with heterogeneous nucleation being considered as caused by the free energy change due to the redistribution of free electrons at the interface of substrate and nucleated phase.
对钢液中各种固态化合物基底与形核相(δ-Fe和γ-Fe)的价电子结构进行了计算,基于静电作用理论和经验电子理论提出了基底和形核相之间的特征参量△ρ,并对△ρ与钢液非均质形核触媒作用的关系进行了分析和讨论。
2.
The results showed that Ti and Zr was compatible,grain structures of weld were coarse columnar grains with a little Ti or Zr in filler wires,Al3Ti and Al3Zr were formed in the welding pool with additions of a little Ti and Zr in filler wires,which provided the heterogeneous nucleation sites for α(Al).
焊丝中复合添加少量的孕育剂Ti和Zr元素时,Ti和Zr元素在熔池中分别形成Al3Ti和Al3Zr,促进了α(Al)非均质形核。
3.
There were much titanium precipitates in the bottom and side surface of crucible whereas less in inside and surface layer of hot metal by SEM analysis of experimental iron samples,which show that titanium compounds were precipitated by heterogeneous nucleation crystals and that graphitic refractory were more in favor of heterogeneous nucleation than other materials.
对实验铁样进行电镜分析发现,Ti沉积物在坩埚底部和侧面较多,而铁液表层和中心部位较少,表明Ti化合物是以非均质形核晶体析出,相比较石墨质耐火材料更有利于Ti化合物的非均质形核。
2) heterogeneous nuclei
非均质形核核心
1.
The calculation according to the theory of planar lattice disregistry shows that as the heterogeneous nuclei of primary austenite in medium high carbon steel during surfacing, the Ce 2O 3, La 2O 3 and Ce 2O 2S are effective, and the SiO 2.
采用二维点阵错配度理论 ,对不同稀土夹杂物和中高碳钢堆焊时常见氧化物在熔敷金属中成为初生奥氏体非均质形核核心的有效性进行了分析和计算。
2.
The calculation according to the theory of planar latticedisregistry shows that a mong the inclusions ,the Ce2 O3is the most effective , while Ce2 O2 Sis medium effec tive and Ce Sis the m ostineffective as the heterogeneous nuclei of primary austenite in Fe C alloys .
以铈为例采用二维点阵错配度理论对其氧化物、硫化物和硫氧化物在不同凝固温度下成为 Ｆｅ Ｃ合金中初生奥氏体非均质形核核心的有效性进行了分析和计算。
3.
The experimental results indicate that BN is the heterogeneous nuclei of graphite stimulate formation of graphite,which in tested sample,and the graphitization of medium carbon is realized.
结果表明,正是钢中具有与石墨结构(简单六方)相同的BN成为了石墨的非均质形核核心,才有效促进了钢的石墨化过程,实现了中碳钢的石墨化。
3) homogeneous nucleation
均质形核
1.
The dependence of the probability of the supercooled water freezing from homogeneous nucleation on the volume, time and temperature was deduced based on the “continuum” model of water structure put forward by Stanley and Teixeira.
从Stanley和Teixeira提出的水的微观结构连续模型出发推导了过冷水均质形核结冰概率与过冷水体积、时间和温度的关系 ,计算了过冷水均质形核率 。
4) Heterogeneous nucleation
非均质成核
5) heterogeneous nucleation
非均匀形核
1.
Barium titanate based PTC ceramics doped by Nb-Si-Mn heterogeneous nucleation surface deposition method;
铌硅锰非均匀形核表面淀积掺杂PTC陶瓷
2.
Study on the heterogeneous nucleationof CaO/Al2O3/SiO2 system glasses;
CaO/Al_2O_3/SiO_2 系玻璃非均匀形核的研究
3.
For the homogeneous mixing of BaTiO_3(BT) powders with dopants and the exact control of the microstructures,phases and electrical properties of materials,a heterogeneous nucleation method was used to coat dopant Y(OH)_3 on the surface of nano-crystallized hydrothermal BT powders.
为实现改性杂质与钛酸钡粉体的均匀混合,达到对材料微结构、相结构和电学特性的准确控制,对水热纳米晶钛酸钡粉体进行了改性杂质的非均匀形核表面淀积包覆。
6) heterogeneous nucleation
非均相形核
1.
Preparation of Cu-coated MoSi_2 composite powder particles by using heterogeneous nucleation;
用非均相形核法制备Cu包裹MoSi_2复合粉体
2.
Cu coated MoSi_2 composite particles were prepared by heterogeneous nucleation method.
采用非均相形核法制备了铜包裹MoSi_2复合粉体,采用X射线衍射仪分析了复合粉体的物相组成,用热分析仪分析了复合粉体在加热过程中的物理、化学变化。
补充资料：质形
1.犹形体。
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