晶核形成

The engineering practice of spray pyrolysis in the field of preparing lithium-ion battery cathode material were implemented firstly.

研究表明，在前驱溶液中添加一定量的尿素，经热分解过程在液滴内分解成的OH-和NH4+有利于生成成核晶种，从而有利于实心粒子的形成。

Results of XRD,SEM,and UV-Vis indicated that ZnS nanocrystals can grow in and fill in the void of opal template,and SiO2 microspheres of templates are dissolved so as to form some three dimensional ordered porous structure and to form the inverse opal ZnS photonic crystals. Compared with opal templates,ZnS-opal and inverse opal ZnS photonic crystals assembled with SiO2 spheres in the same diameter show good optical properties and exhibited photonic band gap. The photonic band gap position of inverse opal ZnS moves towards UV area compared with opal and ZnS-opal.

结果表明：溶剂热法多次充填可使ZnS纳米晶在模板密堆积形成的空隙中均匀成核；经过酸处理的ZnS-opal中SiO2微球溶解、坍塌，形成蜂窝状三维有序介孔和反opal结构ZnS基光子晶体；相同粒径SiO2微球组装的opal模板、ZnS-opal以及反opal结构ZnS光子晶体均表现出光子带隙特性，但反opal结构ZnS光子晶体带隙位置相比前两者发生了蓝移。

Formation of augen ...

长石眼球构造的形成主要是由长石与石英的韧性差决定的，塑性变形首先从斑晶的周围部分开始，逐渐向斑晶发展，脆性残斑核不断减小，这与剪切带内糜棱岩化强度分带相一致。

The analyzed results about the forming mechanism of TiC indicate that the dendritical TiC is the primary TiC which freely grows in a continuous growth way in supercooling liquid metal before the peritectic reaction, and the short bar-like TiC nucleates and grows in β—Ti after peritectic reaction.

在对TiC形成机制的分析中认为，树枝状TiC是包晶反应之前过冷熔体中，以连续生长方式自由生长而成的初生TiC，而短棒状TiC则是包晶反应后在β-Ti的内部生核并长大而成。

The effects of continue aging process such as concentration, flow, temperature and aging time for hydrotalcite lattice on operating condition is analyzed.

利用神经网络建立的模型，分析了成核料液的浓度、流量以及晶化温度、晶化时间对形成的水滑石晶体的影响，并由此建立了关联方程。

Secondary growth of silicalite-1-seeded industrial CuO-ZnO-Al2O3 in alkaline solution with silica and alumina source produced intergrown ZSM-5 zeolite shells. After the shells were changed into HZSM-5, we compared the catalytical performance of the core/shell composite catalyst with a non-core/shell structured composite catalyst with the same component.

铜锌铝催化剂（CuO-ZnO-Al2O3）是工业上制备二甲醚的良好催化剂，我们将其表面预先包覆纳米沸石silicalite-1晶种，水热环境下二次生长后吸收硅源、铝源后形成ZSM-5膜，转换成氢型后形成CuO-ZnO-Al2O3/HZSM-5的核/壳结构复合催化剂。

When OMMT content was below the percolation threshold, at small shear strain conditions, shear flow could enhance the crystallization of iPP, and the crystallizing entity was spherulitic.

OMMT在复合材料中的组分含量较低时，剪切场的施加能够明显地促进聚丙烯的成核与结晶生长，随着剪切应变的增加，由于剪切诱导作用，样品中形成串晶及取向的球晶结构。

Through cyclic hydrogen bonding with motif formed by coordinated water molecules and coordinated hydroxyl groups of dhbd from adjacent tetranuclear units, these adjacent neighbors are connected to afford a 1D supramolecular chain along axis a, which is further extended via aromatic intercalations and other crystallization water molecules into a 3D structure with channels.

毗邻的四核单元通过配位H2O分子和配位羟基O原子形成的 R 22(8)型环形氢键桥的连接，沿a轴方向构建了四核单元交替相连的一维超分子链；链间籍苯环的π-π堆积作用和晶格水分子氢键链的连接进一步扩展为具有隧道的三维结构。

The millimetersized tubular crystal selenium was first prepared. By studying the process of treating selenium in ethylenediamine, we proposed the mechanism of the preparation of selenides under solvothermal condition. The selenides came into being from the reaction of metal ions with Se〓, which was obtained by the amine attacking selenium. Moreover, a new precursor to prepare nanocrystalline selenides at room temperature was obtained. From this precursor, we have prepared nanocrystalline silver selenides, copper selenides, lead selenides and cadmium selenides nanorods.

首次报道了采用溶剂热处理的方法制备出厘米尺度的管状结构硒晶体；通过对硒粉在乙二胺中的溶剂热研究，初步探讨了以单质硒为硒源的溶剂热合成硒化物的反应机理应是硒受胺类的亲核进攻变成Se〓而进一步形成相应的硒化物；获得了合成硒化物纳米晶的前驱物，并在室温条件下合成了硒化银、硒化铜、硒化铅纳米晶和硒化镉纳米棒等。

The gas-to-powder conversion is carried out following the route: DMS pyrolyzes and forms product molecule and molecular clusters, the product molecular clusters that grow to and above the critical size by random collisions with molecules and other clusters become elementary particles, the elementary particles grow further by collisions and fusion with molecules, clusters and other elementary particles to form resulted SiC particle.

论文采用TEM、HREM、XRD、IR、NMR、中子衍射、Raman光谱和定量化学分析、光透沉降粒度分析等手段，对制备得到的纳米SiC粉体进行了系统表征研究，并研究了SiC纳米粉体的成核、生长、晶化过程和机制，指出化学气相反应法制备SiC纳米粉体的过程是一个均匀成核→核子生长形成初始颗粒→初始颗粒熔融碰撞→产物粉体的过程。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。