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Keywords nanometer size powder;ZrO_2;plasticity;extrusion forming; 纳米粉末;氧化锆;塑性;挤制成型;
Keywords nanometer sized particles;diameter;dispersivity;agglomeration; 纳米粒子;粒径;分散性;团聚;
Nanometer size Fe Ag and Co Ag magnetic embedded clusters are produced by Evaporation Gas Aggregation(EGA)co deposition on formvar foil. 利用蒸发－气体－聚集（EGA）共沉积方法，在有方华膜的电镜载网上制备了Fe－Ag及Co－Ag系列纳米磁性包埋团簇，通过控制蒸发电流等沉积条件，获得了不同团簇大小的样品。
The effect of nanometer sized lanthanum oxide on catalyzing thermal decomposition reaction of absorbent powder (nitrocellulose absorbed nitroglycerine,NC/NG) was studied by DSC. 研究了纳米氧化镧对吸收药(硝化棉吸收硝化甘油的混合物,NC/NG)热分解反应的催化作用,并提出了形成过渡态配合物的反应机理。
Porous alumina films with nanometer size have been fabricated through electrochemical method in the aqueous solutions of sulfuric acid and oxalic acid. 采用电化学方法在硫酸和草酸溶液中制备了具有纳米结构的多孔氧化铝。
With the same atomized parameters, the porosity amount in large size powder is more than that in small size powder. 在相同雾化制粉工艺参数条件下,粗粉中孔洞的数量多于细粉。
Nanometer sized grains contain only about 900 atoms each. 纳米尺寸的晶粒每个只包含大约900个原子。
Polymeric micelles self-assemblied by amphiphilic block copolymers in aqueous media are thought to be promising drug carriers with nanometer size. 由两亲性聚合物形成的胶束是一种很有发展前景的纳米级药物载体。
The stability of suspension made of 8% yttria stabilized zirconia (YSZ) micro size powder with 4% Al 2O 3 added and arabic gum as the dispersant was studied. 研究摩尔分数为 8%25的钇稳定化氧化锆 ( YSZ)微粉添加质量分数为 4%25的 Al2 O3 ;并以阿拉伯树胶为分散剂所制备的料浆的稳定性 .
Keywords Nanometer;Sheetlike aluminum powder;Preparation;Application; 纳米;片状铝粉;制备;应用;
Analysis of SEM,TEM and DSC of AT/EOC composites showed that attapulgite still dispersed in a micrometer size in prepared AT/EOC composites,not at expected nanometer size,and it hardly affects on the crystallity and melting of EOC. 通过SEM、DSC、TEM分析表明 ,制备的AT/EOC复合材料是凹凸棒石呈微米尺寸分散的复合材料 ,AT未能分散形成纳米单晶 ,并且AT对EOC的结晶、熔融无明显影响。
We propose a method by which periodic two dimensional arrays of identical metal clusters of nanometer size and spacing could be spontaneously obtained by using standard molecular beam epitaxy. 我们提出了利用分子束外延的自组织生长过程大面积制备二维周期性纳米金属团簇阵列的一种方法。
Keywords nanometer SnO_2;organic solvent;sol-gel; 纳米氧化锡;有机溶剂;溶胶-凝胶法;
Non-viral gene complexes fabricated by supramolecular assembly showed great potential in gene therapy due to the suitable nanometer size, controllable structure and excellent biocompatibility. 采用超分子组装技术制备的非病毒基因传递体系，由于具有合适的纳米尺寸、可控的结构及良好的生物相容性，显示出巨大的发展潜力及应用前景。
Keywords nanometer;sherardizing;surface alloying; 纳米;粉末渗锌;表面合金化;
PTFE matrix composites were fabricated using mixing nano sized powder process and vaporizing impregnant process. 采用溶剂蒸发法和固体纳米粉末混合法制备两种工艺制备了PTFE复合材料。
This kind of amphoteric polyurethane (APU) can form stable nanometer sized waterborne dispersions in acid or alkaline media. 同时还测定了APU的等电点和水分散液中APU分子链上可离子化基团的含量 ;
The results show that the hardness of composites fabricated with vaporizing impregnant process is much higher than that fabricated with mixing nano sized powder process. 结果表明在填料含量相同时,溶剂蒸发法制备的PTFE复合材料的硬度显著高于固体纳米粉末混合法制备的PTFE复合材料的硬度;
The application and the progress in the preparation of nanometer sized materials by molecular self assembly method are reviewed. 对分子自组装技术在纳米材料制备方面的应用及其研究进展作了综述报导。
Keywords nanometer powder;yttria-doped ceria;complex impedance spectrum;conductivity;activation energy; 纳米粉体;钇掺杂氧化铈;交流阻抗谱;电导率;活化能;