查询词典 rare earth

In addition to complex anion crowd carried by organic functional group, there were many kinds of mass point like aluminum, silicon, zinc and rare earth elements et al in composite elastic material, and there were replaceable cation as well as anion; besides, all cation kept rather distant each other. It was not easy to crystalize in composite elastomer because of the block of organic molecule.

在复合弹性体材料中，除了存在有机官能团所带有的络阴离子群之外，还同时存在铝、硅、锌和稀土元素等多种质点；存在可以置换的阳离子和阴离子，并且各种阳离子都保持相当远距离；由于有机分子的阻挡，复合弹性体内不易析晶。

The influence of the content of rare-earth La on microhardness and erosion corrosion-wear resistance of hot-dipped aluminizing layer was studied in this paper.

研究了稀土La及其加入量对热浸镀渗稀土铝合金渗层显微硬度及抗冲蚀腐蚀磨损性能的影响。

Rare earth metal seed Tb was employed for the growth of GaN nanorods. GaN nanorods were synthesized successfully through ammoniating Ga2O3/Tb films sputtered on Si(111) substrates. X-ray diffraction results indicated that the nanorods were hexagonal GaN.

使用稀土元素Tb作催化剂，通过氨化溅射在Si(111)衬底上的Ga2O3/Tb薄膜，成功制备出GaN纳米棒。X射线衍射测试显示，GaN纳米棒具有六方结构。

Using doped method low rare earth concentration and chelates matrix luminescence was successful in the chelates systems.

稀土荧光络合物研究中借用无机稀土掺杂的办法也可以实现以络合物为基质的低浓度的稀土发光。

The density, electrical contact resistance and hardness of these two alloys were tested. The results show that Ag and rare earth oxide appear in Ag-Y and Ag-Ce alloy after internal oxidation. The distribution of oxide particles is inhomogeneous and seriously conglomerated in Ag-Y2O3 and Ag-CeO2 sintered bulk, but they are dispersed and uniform in Ag matrix after severe plastic deformation. The relative densities of wire materials are larger than 99% and the electrical contact resistances are low (＜2.2 μΩcm).

结果表明：Ag-Y和Ag-Ce合金粉末经内氧化处理后生成Ag和稀土氧化物2种物相；Ag-Y2O3和Ag-CeO2材料烧结坯中氧化物颗粒分布不均匀且团聚严重，但材料经过大变形加工后，氧化物颗粒细小，均匀地弥散分布在银基体上；最终产品丝材的相对密度均达到99%以上，电阻率较低(＜2.2 μΩcm)。

At the same time,the effect of rare earth on the crystallizing behavior of Mg2Si phase and mechanical properties were discussed.

采用扫描电镜观察了不同稀土Pr加入量变质处理过共晶Al-18%Si-Mg合金的组织变化，并分析了稀土Pr对 Mg2Si 相结晶行为及合金性能的影响。

In order to increase the use value of lycoramine, it was dehydrogenated selectively in the presence of 9% rare earth metal hydride at 240 ℃, affording galanthamine with 45.9% yield and 97% optical purity by semi-synthesis.

加兰他敏提取工艺中的主要副产品——力可拉敏的药用价值明显低于加兰他敏，为提高力可拉敏的利用价值，在催化剂存在下脱氢制取加兰他敏。

In order to increase the use value of lycoramine,it was dehydrogenated selectively in the pres- ence of 9% rare earth metal hydride at 240℃,affording galanthamine with 45.9% yield and 97% optical purity by semi-synthesis.

加兰他敏提取工艺中的主要副产品--力可拉敏的药用价值明显低于加兰他敏，为提高力可拉敏的利用价值，在催化剂存在下脱氢制取加兰他敏。

The electroplating of NdFeB rare earth material in aqueous solution has the disadvantage of plating delaminating and blistering.

在钕铁硼稀土材料表面直接进行水溶液电镀时，存在镀层分层、易起泡等缺陷。

The effects of rare earth on Zn-Fe alloy electrodepositing in sulfate bath have been studied.

实验研究了稀土在硫酸盐体系中电沉积锌铁合金的作用。

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。