查询词典 cerium dioxide

Cerium dioxide is very important in the applications of rare earth fluorescent materials.

高纯度氧化铈在稀土发光材料中有重要应用。

The chlorinating mechanism of cerium dioxide was investigated by chlorinating CeO2 with NH4Cl and thermal analysis, which is meaningful for chlorinating RE minerals such as bastnasite by NH4Cl and preparing anhydrous RE chloride.

通过考察反应温度、时间及NH4Cl用量对CeO2氯化的影响以及CeCl3*7H2O的热分解行为的研究，对CeO2的氯化机制进行了探讨。

Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode,cerous nitrate and ammonium nitrate as electrolyte.

以钛基钌-钇-铑涂层电极作为阳极，硝酸铈和硝酸铵作为电解液，电化学法制备二氧化铈超细粉体，用X射线衍射和透射电镜进行了表征，制备条件用正交实验设计进行优化；通过极化曲线，计算了电极过程动力学参数

Therefore chlorinating cerium dioxide with NH4Cl should strictly control the temperature and time, and over-dose NH4Cl should be applied as well.

因此采用NH4Cl氯化CeO2时，一方面应控制反应温度及反应时间，同时，过量的NH4Cl有利于CeCl3形成。关键词：稀土；铈；氯化；热分解

Based on the chlorinating ratio of cerium dioxide reaching about 80% at 300 ℃ and decreasing at higher temperature, it is must be owing to thermal decomposition of CeCl3.7H2O.

同时CeO2的氯化并不是NH4Cl产生HCl发生氯化，而是NH4Cl直接参与反应，生成中间化合物CeOCl，然后转化为CeCl3。

Cerium dioxide has high refractive index and dielectric constant and ultraviolet absorption which may be useful for various optical and electronic applications.

二氧化铈具有高折射率、介电常数和紫外吸收率，因此它广泛地应用于各种光学和电子器件。

Cerium dioxide was added to improve the heat-resistance of the hyper-hard silicone rubber materials and the effects of the particle size were studied and the results showed only when the cerium dioxide particles were well dispersed in the rubber matrix, can the heat-resist effect be achieved.

通过溶胶-凝胶工艺制备了气相法白碳黑担载的氧化铈，以其为填料获得的高硬度硅橡胶与以纯气相法白碳黑为填料获得的高硬度硅橡胶相比，耐热老化性能显著提高。

A kind of silica loaded cerium dioxide particles was prepared by the sol-gel method and the heat-resist performance of the silica loaded cerium dioxide particle added silicon rubber materials improved evidently as compared with that of the purely silica added materials.

研究了两种硅烷偶联剂——乙烯基三乙氧基硅烷(A-151)和乙烯基三特丁基过氧硅烷对高硬度硅橡胶性能的影响，比较发现A-151不但可以显著改善高硬度硅橡胶的回弹性，而且使用方便、成本较低。

Cerium dioxide ultrafine powders were prepared by electrochemical method using composite coating of Ru, Ir and Rh as anode, and Cerium nitrate and ammonium nitrate as electrolyte.

采用钛基钌铱铑复合涂层作为阳极，以硝酸铈和硝酸铵作为电解液，电化学法制备二氧化铈超细粉体。

In this paper, silica was selected to improve the hardness of silicone rubber, cerium dioxide was selected to improve the thermal stability, we also investigated the effect of different size and different dosage of cerium dioxide to the thermal stability of high hardness silicone rubber, and analysed elasticity especially.

通过添加气相法白炭黑增加硅橡胶硬度，添加金属氧化物改善硅橡胶热稳定性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。