金属粒子

The diameter of cupper and powder which receives ball milling for 50 h, 80 h, 100 h, and 120 h is about 300 nm, 140 nm, 70 nm, 30 nm respectively in ball form; paraffin can evenly cover copper particles. nanometer composite ; metal ; polymer ; high energy ball milling

本文采用高能球磨法研制纳米金属粒子/有机物复合材料功能，着重分析讨论该复合材料的微观形貌特征以及制备工艺对微观形貌特征的影响，为该类无定形功能复合材料的研制作些初步的探索。1 实验材料与方法实验

We bring in size parameter into relaxation time of free electron on basis of Drude model, and build a metal particle n and k model which vary with size and wavelength.

在德鲁特模型的介电函数基础上，对自由电子弛豫时间引入尺度修正，建立了金属粒子n、k值随波长和粒径变化的尺度效应模型。

The results from the experiment show that the participancy of heated and atomized aluminium dynamically oxidizes into Al2O3 powder.

试验研究表明：在电弧喷涂雾化气体中加入纯氧气成分后，经高温电弧热熔化、雾化的铝金属粒子与氧气能够产生强烈的氧化反应，可以制备出Al2O3纳米粉体材料。

This is because the inflation graphite may take the load metal the carrier, moreover the crevice are many, may the very good accommodation nanometer metallics.

这是由于膨胀石墨可作为负载金属的载体，而且空隙多，可很好的容纳纳米金属粒子。

Recent years's research demonstrated that the nanometer metallics to the water body in the inorganic salt, the organic matter, the heavy metal class pollutant has the very good elimination effect, the unique superiority and widespread decontamination water purification ability enables nanomaterials to have the very good application prospect in the repair ground water aspect.

近年来的研究显示，纳米金属粒子对水体中无机盐、有机物、重金属类污染物都有很好的去除效果，特有的优势和广泛的去污净水能力使纳米材料在修复地下水方面有很好的应用前景。

This invention adds umpty conductive particles such as metal particles, carbon nanometer materials and etc into the semiconductor nanometer crystal film of the dye sensitization solar battery electrode, and solves the problem of low conducting ratio of the present semiconductor nanometer crystal film of the dye sensitization solar battery.

本发明在染料敏化太阳能电池电极的半导体纳米晶膜中加入若干导电微粒，如金属粒子、碳纳米材料等，解决现有的染料敏化太阳能电池的半导体纳米晶膜的导电率低的问题。

According tocomparison with the two ignition manners, there are many particles aggraded on thesurface of the propellants, and the oxygen content notablely decreased in the plasmaignition, but the characters are not appeared in the conventional ignition.

通过对两者的分析比较，发现等离子体点火中大量金属粒子沉积于推进剂表层，并且点火后推进剂氧含量明显减少。

Smallzones where Ag metal particle conglobated were observed too.

而18%掺杂量时，Ag的金属粒子的尺寸大部分分布在2-10nm。

The core colloids modified with metal nanoparticles possess excellent optical, electric and catalytic properties.

金属粒子修饰的核胶球具有的优异的导电、光学和催化活性。

A filter in the fuel line that screens out dirt and rust particles from the fuel.

能够从燃料中过滤出杂质和金属粒子的放在燃料中的过滤器。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。