粉末状态

There are no complete or public fabrication processes of SLS polymer powders. In this paper, according to the fabrication methods of polymer powders and the data analysis, the feasible fabrication processes and methods of cryogen and solvent are reached. The reasonable combination of process parameters is important to get the better quality.

目前SLS高分子粉料的制备工艺处于行业保密状态，没有完整、公开的工艺流程可供参考，本文根据高分子粉末的制备方法，通过资料分析，总结出了低温粉碎法和溶剂沉淀法两种可行的SLS高分子粉料的制备方法和工艺流程。

Finally the mechanisms and factors of decarburization of WC particles in spraying were explor...

结果表明：纳米结构WC-12Co涂层结构致密，孔隙率低，与基体结合状态良好；纳米粉末在喷涂过程中比微米粉末氧化失碳严重，并发生了不同的纳米晶粒的长大；纳米粉末在喷涂过程中的氧化脱碳程度不仅与喷涂工艺有关，还在很大程度上取决于粉末本身的结构特性。

The effect of different content of disperser in the slurry to spray dried powder properties and liquid sinter process to metallurgical bonding of Cr3C2 and NiCr alloy was studied in this paper.

实验研究了不同分散剂含量对喷雾干燥制备Cr3C2–25%NiCr复合粉末性能的影响，液相烧结工艺对Cr3C2与NiCr合金相之间冶金化结合状态的影响。

Laboratory data indicate that the water solubility and injectivity of the polymer were good at reservoir conditions.

结果表明，该聚合物水溶液配制方便，将粉末状态的聚合物配制成1500mg/L的水溶液仅需2h。

The thesis documents emphatically analyze the state of equation of powders as well as the macroscopical and microcosmic mechanism of explosive compaction of powders, also the action of shock wave on powders in load settings.

论文着重分析了爆炸粉末烧结中的多孔材料的冲击状态方程、宏观机理以及细观机理；对加载装置进行冲击波对粉末作用的分析。

In this paper, nanopowders of rare earth oxides and tungsten were prepared and 0-3 type nano-composit rare earth tungsten thermionic emission materials were fabricated with novel technics. The raw material selection, preparation technic parameter, structure, physical and chemical characteristic, the rare earth distribution and the emission behavior were studied. The influence between the active layer and the thermionic emission performance, rare earth elements diffusion and distribution along depth were investigated in detail. The surplus RE formation and the electron transfer were discussed in theoretically. The thermionic emission current density of the single surplus RE on the active layer was educed. We adopted "liquid-liquid mixing, freeze-drying and two stage-reduction" working step firstly to produce the RE-W nanopowders including La-W powder, Ce-W powder and Y-W powder.

本文采用细化显微组织的新工艺，制备了纳米稀土钨粉末和0-3型纳米复合稀土钨热电子发射材料，探讨研究其原料选择、制备工艺及参数、结构特征、物理和化学特性、稀土分布均匀性、以及热电子发射特性；系统研究了稀土元素的高温扩散情况、高温状态下活性层中稀土的纵向深度分布、以及表面活性物质和活性层厚度对热发射性能的作用；从理论上分析阐释了超额稀土的形成及其电子的传递过程；并从理论上推导了活性层中单个超额稀土的热电子发射电流密度。

The hard agglomerate formation could be effectively avoided by mixing some macromolecular surfactants with the undried gels.

在凝胶干燥前加入某些高分子表面活性剂可使粉末团聚状态得到显著改善。

It was found that the Mo-Cu compound powder after high energy ball milling was in a inequilibrium energy storage state.

本文通过对Mo-Cu复合粉末的机械合金化研究表明，经过高能球磨后的Mo-Cu复合粉末，处于非平衡储能状态。

In this paper, a number of procedures were designed for studying the mechanism of forming hard agglomerates of Z〓O〓 powders, and the properties of resulting powders were investigated extensively.

研究超细粉末团聚体的形成机理、寻找控制粉末团聚状态的工艺方法是〓性能陶瓷制备理论与技术的焦点，是个十分重要的研究课题。

Its function is to become poisonous asunder the steam, liquid drop, spirit dissolve gum or powder appearance, making air, ground, headwaters and object dye poison to kill wound and slow enemy a soldier an activity.

它的作用是将毒剂分散成蒸汽、液滴、气溶胶或粉末状态，使空气、地面、水源和物体染毒，以杀伤和迟滞敌军行动。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。