查询词典 rare earth

Colour generation effect of rare-earth elements and the phase change process of group colourant zircon pigment have been investigated.

考察了稀土元素的呈色效果和组合着色锆英石型颜料的物相变化过程。

Because of the adulteration of rare earth ion and the lamellar structure of the calcium and titanium mine, the material has lower heat conductivity and higher coefficient of thermal expansion compared to the zirconium oxide which is stabilized by 7-8% yttrium oxide.

由于稀土离子的掺杂及其自身的层状钙钛矿结构，该材料与目前普遍使用的7～8％氧化钇稳定的氧化锆相比具有更低的热导率和更高的热膨胀系数。

Bastnaesite crystal about 12×20 mm in size collected from a pegmatitic aegirine augitebarite-bastnaesite vein of the Maoniuping rare earth deposit, Mianning County, Sichuan Province,has been analyzed for La, Ce, Pr and Nd by synchronous radiative X-ray fluorescence technics at the National BEPC Laboratory.

对采自四川省冕宁县牦牛坪稀土矿床中伟晶状霓辉石－重晶石－氟碳铈矿脉的一个氟碳铈矿晶体（约12×12mm）在BEPC国家实验室采用同步辐射X萤光技术分析了La、Ce、Pr和Nd。

Experimental results showed that the affixion of rare earth elements could strengthen the electrorheological effect greatly.

试验结果表明稀土元素的添加可以大大增强电流变效应。

The HEED, XRD, and XPS results confirmed the forming of intermetallic compounds between silver and rare earth. As far as silver and lanthanum be concerned, the format of intermetallic compound is AgLa.

由此，本文首次提出了稀土元素在稀土金属间化合物中的能量传递模型，认为稀土与银金属间化合物的4f能级位于费米能级附近下方，部分局域化且与导带部分耦合。4f能级与导带能级之间的电子跃迁是稀土元素在Ag-BaO薄膜中传递能量的方式，也是光电发射增强效应的来源，而4f电子的光吸收截面随入射光子能量的增加而增大的特点则是&蓝强&现象的原因。

The gold-bearing albitite has a lower content of rare-earth elements and its REE patternsare flat with negative Eu-anomalies- Th...

矿物组合及铁白云石碳、氧同位素组成特征与秦岭地区热水沉积钠长石岩的基本相同。

The effect of the rare earth oxide La 2O 3 on the characteristics of alite and its hydration properties are studied by using the measuring methods such as chemical analysis, XRD, SEM, DTA etc.

运用化学分析、XRD、SEM、DTA等测试手段，研究了稀土氧化物La2O3对A矿性质及其水化性能的影响。

Removal of high concentration of ammoniacal nitrogen discharged in rare earth production process by VMD is basically studied in this paper, and VMD can achieve the purpose of ammoniacal nitrogen removal and reuse of recovered ammonia at the same time.

进行了减压膜蒸馏法处理含高浓度氨氮的稀土冶金所排废水的基础研究，该法可达到脱除废水中高浓度氨氮及回收氨回用于生产过程的目的。

ABSTRACT In the process of rare earth production, large amount of sulfuric acid, hydrochloric acid and ammonia are consumed, However, there are large amount of sulfuric acid, hydrochloric acid or ammoniacal nitrogen in solutions or discharged waste water which need to be treated.

稀土冶炼过程中，一方面大量使用硫酸、盐酸及氨等化工原料，另一方面，在生产过程的某些中间环节或排放的废水当中，又含有大量的硫酸、盐酸或氨氮化合物需要处理。

The X-ray diffraction patterns were calculated analogically by using Rietveld method and the phase content in rare-earth two phase Nd2Fe14B/α-Fe magnet was determined based on standardless quantitative phase analysis.

稀土双相永磁合金是基于软磁相的高饱和磁化强度和硬磁相的高各向异性的特点，通过两相晶粒在纳米尺度上交换耦合而成的一种纳米晶复合永磁材料，它具有显著的剩磁增强效应，可望获得较高的综合磁性能[1~3]。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。