Powder produced in this way has a uniform particle size distribution, low oxide content and high purity. 这种方法制造出来的焊锡粉具统一的粒径、氧化和高纯度的特性。
Invented by scientists at the Swiss Federal Institute of Technology Lausanne, this novel reactor allows the synthesis of extremely uniform particle size powders down to nanometer size. 该技术由瑞士联邦洛桑技术学院的科学家发明,这种新颖的反应器可合成尺寸十分均匀的粉末颗粒,合成颗粒尺寸可达到纳米级。
Tomato power with various pectin contents could provide more uniform particle size distribution and better dispersion due to the enhancement of pectin content. 不同果胶含量的番茄粉随着果胶含量的增加,粒径分布更均匀、分散性更好。
Controllable synthesis of the silica-supported rhodium catalyst with uniform particle size has been achieved through microemulsion technique by manipulating the W_0 value ( molar ratio of water to surfactant in the precursor). 利用微乳法,通过调节W0值(水与表面活性剂的摩尔比),实现了负载型Rh/SiO2催化剂中金属铑粒子大小的可控合成。
The carbon membranes prepared by smaller and more uniform particle size have a smaller pore size and abundant pore structure. 因此,通过调节原料粒度可制得具有不同孔径和分布的炭膜。
Results show that simple composition and stable properties of W oxide is a prerequisite for quality WC powder with uniform particle size and less aggregate. 结果表明:保证原料氧化钨相成分单一和性能稳定是生产粒度均匀、聚团少的优质WC粉的前提;
The results of AFM and SEM showed that TiO_2 film deposited by this technique had the characteristics of uniform particle size and a tight surface structure, and the accidented surface helps the photo-catalytic reaction for the more comparative acreage. 经SEM扫描电镜与AFM原子力显微镜观测,组成薄膜的TiO2纳米颗粒粒径均匀,组织致密连续,而且薄膜表面凹凸不平,增大了有效比表面积,有利于光催化反应进行;
Terrace is composed basically of layers with ore and coke and of uniform particle size distribution. 平台基本为矿焦层状结构,粒度分布较均匀,对气流控制作用强,促进气流分布稳定,是无钟布料的重要基础。
Conclusion: The HCPT-SSLN has high entrapment efficiency and drug loading, uniform particle size, good stability, which initially indicates that HCPT is fit for being incorporated into SSLN. 结论:本实验制备的HCPT-SSLN包封率和载药量较高,粒径分布均匀,稳定性良好。初步表明HCPT适合进行SSLN包裹。
The results show that uniform particle size and super suspending ultrafine Ce-Zr-O powders were obtained by the following process: First zirconium nitrate and cerium nitrate were fed into ammonia water to get precipitate under the room temperature; then drying and calcining the precipitate to get product. 结果表明:采用硝酸铈锆料液为原料、用氨水作沉淀剂、以反加料方式在室温下沉淀,所得沉淀经干燥和煅烧可以得到粒度均匀、悬浮性好的超细Ce-Zr-O粉末。
By surface morphology analysis, the ( distribution) of nano diamond in the coating is shown to be homogeneous with uniform particle size of 100~ 200 nm. 表面形貌分析观察到镀层中纳米金刚石分布均匀,颗粒在100~200nm左右。
Conclusion Nanometer HAP powder with uniform particle size can be synthesized by sol-gel method. 结论采用溶胶-凝胶法可以合成颗粒大小均匀、分散性好的纳米羟基磷灰石。
Uniform particle size distribution is beneficial to improving the electrochemical performance of the alloy. 均匀的粒度分布有利于合金粉电化学性能的提高。
The SnO_2 obtained is nano-crystalline with uniform particle size ( 8-10 nm) and porous structure ( pore diameter 4-6 nm). 结果显示,制备的SnO2纳米材料粒径(尺寸为8~10nm)均一,并具有多孔性质(孔径4~6nm);
Results showed that LiFePO_4/ C were simple pure olive-type phase with uniform particle size of 1 μ m. 结果表明:LiFePO4C具有单一的橄榄石型晶体结构,碳粒子平均颗粒大小在1μm左右。
The β-SiC ultrafine powder with a uniform particle size distribution, a homogeneous structure and high purity is obtained through decarbonization, deoxidisation and crystallization. 通过脱碳、脱氧和结晶化处理等工艺,制备出粒径组成均匀(<0.1μm)、纯度高(含碳量30%。按质量计)、结晶好的β-SiC超细微粉。
The experimental results indicate that the growth direction of Mg ( OH)_2 crystal is changed and the regular hexagonal plates of Mg ( OH)_2 with uniform particle size and high dispersion characteristic are formed after the hydrothermal modification treatment. 结果表明,经过水热改性处理改变了氢氧化镁晶体的生长习性,生成了形貌规则、粒径分布均匀、分散性良好的氢氧化镁六方片状颗粒。
Studies showed that microspheres present porous structure, large specific surface and relatively uniform particle size, and they had large adsorption capacity and can adsorb MB quickly until equilibrium achieved in roughly 24 hours. 结果表明,微球具有多孔结构、较大的表面积以及均匀的粒度分布。它们对MB具有较高的吸附容量、较快的吸附速率,24h内便可达到吸附平衡。
Microstructure analysis showed that, ZnS crystal growth has existing orientation and uniform particle size. 微观结构分析表明,ZnS晶体的生长存在择优取向,颗粒大小不均。
Furthermore, Ag/ PS core-shell composite nanoparticles with more uniform particle size were prepared. 进一步用相同的方法制备出粒径分布更均匀的Ag/PS核壳复合纳米粒子。
The corresponding hollow carbon spheres possess excellent structural characteristics including uniform particle size, abundant pores and rather high specific surface area and void volume and so on. 制得的空心炭球具有优良的结构特色,如尺寸均一,丰富的孔道以及较高的比表面积和较大的孔体积等。
The effect of reactive temperature and silicate/ surfactant concentration on the structure of carbon spheres was investigated. Ordered mesoporous carbon spheres could then be obtained with high specific surface area, uniform particle size and pore diameter of 2~ 4 nm. 该方法得到的碳球比表面积大、粒径均匀,孔径在2~4nm范围内可调,同时考察不同合成温度以及硅酸盐/表面活性剂在水溶液中的浓度对碳球结构的影响。
All the three batches have uniform particle size, good dispersion, and fine flow characteristics. 该微球具有粒度均匀、分散性好、流动性好等特点。
Compared with the conventional methods, the composite oxides nano-particulates produced had the advantages of uniform particle size, regular shape, good thermal stability and large specific surface area. 本课题组采用超临界抗溶剂法成功制备出铈锆氧化物纳米颗粒,与传统方法相比,具有粒径小且分布均匀、形状规则、热稳定性好、比表面积大等优点。
With the high silt content, uniform particle size, developed capillary, stability of poor water, and frozen sensitive, the silt is not suitable to be the material of soil sub-grade. 其中粉粒含量高,粒径较均匀,毛细管发育,水稳性差,且具有冻敏性,使得粉土为不适宜填筑路基的土质之一。
TEM display silicone-acrylate latex particles with multi-layer core-shell structure, organosilicon polymer coated in core-shell structure acrylate latex particles in the outer layer, uniform particle size distribution. TEM显示硅丙乳胶粒具有多层核壳结构,有机硅聚合物包覆在核壳结构的丙烯酸酯乳胶粒在最外层,粒子分布均匀。