A method to prepare nanometer luminescent powders of yttrium oxide, gadolinium oxide and europium oxide through the microemulsion method relates to a preparation method for a chemical industrial raw material, wherein oxide of highly purified rare earth is adopted as the raw material, cyclohexane is adopted as the oil phase and cetyltrimethylammonium bromide is adopted as the surfactant, and butanol is an adjuvant surfactant, all of which is used to produce a nanometer luminescent powder 2O3: Eu with excellent dispersibility, and the figure in approximate sphere and the size between 10-20nm through the reversed micromulsion method.
一种微乳液法制备氧化钇、钆、铕纳米发光粉体的方法，涉及一种化工原料的制备方法，该方法采用高纯稀土氧化物为原料，环己烷为油相，十六烷基三甲基溴化铵为表面活性剂，正丁醇为助表面活性剂采用反向微乳液法制备了分散性良好、近似球形、尺寸在10～20nm范围内的 2 O 3 ：Eu纳米发光粉体。
The invention discloses a preparing method of sphere-like zirconium phosphate with grain size between 10 and 100um, which comprises the following steps: adopting reflux method to synthesize layered raw material of zirconium phosphate; stripping the layer of the zirconium phosphate powder sample; obtaining mono-layered zirconium phosphate colloid; using rotary spray drier to mould; obtaining the product under peculiar condition, simple operation and mild synthetic condition; using the moulded zirconium phosphate material as catalyst, catalyst carrier, adsorbent and ion exchange agent.
本发明涉及一种类球形磷酸锆材料的制备方法。具体涉及一种颗粒尺寸在10至100μm之间可调的类球形磷酸锆及其制备方法。首先采用回流法合成片层状磷酸锆原粉，然后通过有机胺剥层的方法，将层状磷酸锆粉体样品进行剥层处理，得到单层磷酸锆胶体，最后使用旋转式喷雾干燥器进行成型，制得类球形磷酸锆样品。本方法工艺条件独特，操作简单，合成条件温和。成型磷酸锆材料能够作为催化剂、催化剂载体、吸附剂、离子交换剂等得到使用。
Lead-free solder paste T-800 series are made by the low oxidation degree sphere solder powder, with excellent environmental benefits, favorable dry resistance and thixotropy, it is fit for the fine-pitch of the component`s Surface mount technology.
T-800系列无铅锡膏采用无铅锡低氧化度的球形焊料粉末制成，具有优越的环保特性，耐干性能优良，触变性能良好，适用于细间距器件的贴装。
It belongs to cubic lattic, in sphere shape, white, stable in air. The diameter of powder is about 25-35 nm and homogenous.
结果表明所制得的纳米氧化镁微粒呈立方晶格，形貌为椭球体，分散性好，粒径在25~35nm之间。
The polishing efficiency of the calcined high pure cerium oxide polishing powder, which matches with the polyurethane polishing die, in quasi-sphere centre arc line swing high-speed polishing and the function of additive and its recovery processing are described.
本文阐述了准球心弧线摆动高速抛光中与聚氨基甲酸乙酯抛光模相匹配的高纯氧化铈抛光粉经烧制处理后的抛光效率，添加剂的作用以及回收处理。
Hydromechanics Calculation for Micro Sphere UO_2 Fuel Producted by Sol-Gelation Method Experiment shows that with the increment of substituted spontaneous combustion gangue powder for cement, the water demand of gelled material system is increased gradually.
溶胶凝胶法制造UO2燃料微球的流体力学计算试验结果表明，随着自燃煤矸石粉取代水泥量的增加，胶凝材料体系需水量逐渐增大。
In this paper, the preparing technique and application of Ti6Al4V powder and its powder metallurgy are intro duced, as well as the traditional and several new powder metallurgy technologies of producing Ti6Al4V and their applied outlooks. It is signed that gas atomization is the main industrial method to produce low oxygen content sphere titanium alloy powders.
综述了国内外Ti6Al4V粉末及其粉末冶金制品的制备技术及应用概况，指出低氧球形高质量粉末的制备是钛合金粉末的发展方向，气体雾化是制备优质钛合金粉末的主要工业化生产方法，介绍了传统的粉末冶金方法及近年来新开发的粉末冶金新技术的应用情况。
A Research on the Application of Hollow Sphere-Shaped Zirconium Oxide Powder in Aero-Engine
空心球形氧化锆粉末在航空发动机上的应用研究
In order to get the damage mode and resist character of spacecraft shield structure by the high-velocity impact of space debris, a two-stage light gas gun with non-powder projection was used to launch Al-sphere projectiles impacting on aluminum alloy Whipple shield.
为了掌握航天器防护结构受空间碎片高速撞击的损伤破坏模式及其防护性能，采用二级轻气炮发射球形弹丸，对铝合金Whipple防护结构进行高速撞击实验研究。
The grain size distribution is relatively wide. The morphology of nanocrystalline WC Co composite powder displays approximately sphere shape and the mean particle size of the powder is about 50 nm.
球磨得到的WCCo纳米复合粉末颗粒形貌基本为球形，粒径分布较宽，颗粒中存在着一些团聚体，平均颗粒尺寸约为50nm；
The results indicate that the rare earth La changes the shape of doped tungsten powder from quasi-sphere to regular polyhedron and exists in the form of La_2O_3 both in powder and bars.
结果表明，稀土元素La的添加使掺杂钨粉的形貌由未添加La的准球形变为规则多面体；La在粉末和坯条中均以La2O3形式存在。