查询词典 crystallization

During the process of peptization and hydrothermal crystallization, the aggregation behavior and the resulting morphology of nanocrystalline titania (TiO2) were studied by X-ray diffraction, scanning electron microscope, and dynamic light scattering techniques.

通过XRD、SEM和动态光散射粒度测定仪研究了胶溶及水热晶化过程中纳米TiO2晶粒聚集行为及形貌。实验结果表明，在胶溶无定形沉淀过程中所形成的大小为10-15nm的锐钛矿型胶粒或金红石型胶粒易定向聚集成更大的、具有(30-50)nm×(80-100)nm的次级晶粒。含有次级晶粒的溶胶前驱液在水热晶化过程中，次级晶粒发生崩裂并生长成结晶度更高的大小约为10-30nm球形和大小约为20-60nm棒状纳米TiO2

Especially, there exist polymorphism for poly s with para phenylene linkages, since the metastable crystals can be obtained under a certain of crystallization conditions.

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Additionally, the crystallization of activated phosphorite powder declined, and the surface area increased.

活化磷矿粉结晶度降低，比表面积增大，有利于磷素在土壤中的释放与吸附。

A new technology to produce phosphoric acid from low-grade phosphorite and its advantages are described, also the kinetics of decomposition and crystallization are briefly presented.

摘 要］研究利用低品位磷矿生产磷酸的新流程，分析这一流程的若干特点，探讨流程中的酸解动力学和结晶动力学的一些基础问题。

The background image is a photomicrograph of a protein crystallization experiment.

背景图像是一个蛋白质结晶化试验的显微照片。

The advances in the research of cold flow properties of diesel fuel based on the crystallization of wax in diesel fuel were reviewed, including the application of the technology of XRD, DSC, photomicrography, thermodynamics and molecular simulation.

从结晶角度出发对柴油低温性能方面的研究进展进行了综述，包括X射线衍射法、光学显微技术、热力学研究、热分析技术和分子模拟技术等测试技术的应用。

The crystallization temperature, pressure and depth of clinopyroxene phenocrysts from the picrite and basalt were calculated on the basis of the clinopyroxene-melt equilibrium principle.

根据单斜辉石-熔体平衡原理计算了苦橄岩中单斜辉石斑晶形成的温度和压力，其变化范围主要集中在1350～1387℃和16.6～21.3kPa，相应的深度为55～70km，大致代表了苦橄岩岩浆房的深度。

ABSTRACT The crystallization process is investigated on the basis of growth unit model of anion coordination polyhedron.

摘 要 在负离子配位多面体生长基元模型的基础上深入研究了晶粒的结晶过程。

Furthermore, the soluble proteins also controlled the polymorph and transformation in the CaCO〓 crystallization in vitro.

可溶性蛋白浓度的降低，在文石片层中出现许多微孔和微观缺陷，伴随着晶型转变的发生。

It is found that for polymorphous crystallization the lower bound of grain size is essentially dependent on melting entropy.

当金属玻璃在熔化温度的一半的晶化温度经历多晶型晶化时，晶粒尺寸的下限只是温度的弱依赖函数。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044