粉末

Pore structure experiment shows that porosity of high volume fine mineral mixture RPC is about 5%, the pore distribution is uniform and the main pore is small. When the cement content of high volume fine mineral mixture RFC is 300 kg/m^3, its sclerotium hydration products is dense packed by irregular equal Ⅲ style C-S-H gels. The gels are fine, dense, and integrate with the aggregate.

孔结构试验表明，大掺量矿物细粉活性粉末混凝土的孔隙率均在5%左右，孔分布情况很均匀，主要以微小的小孔为主；水泥用量为300 kg/立方公尺的大掺量矿物细粉活性粉末混凝土硬化体水化产物主要由不规则等粒子状的Ⅲ型C-S-H凝胶紧密堆积在一起，凝胶精细、致密，且与骨料融为一体。

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。

So, in this process, we would breaking the powder and sieve it according to different grain sizes.

在此过程中，将粉末进行破碎并将不同粒度的粉末进行筛分。

The particle size decreased with increased milling time and after 30 h milling, the particles were nearly spherical shape with a uniform mean size of 13.4 μm.

当球磨时间为30h时，粉末平均粒径随着球磨时间的增加而迅速减小至134μm，粉末多呈球形，粒度分布较窄。

SEM showed that the morphology of these powders was like sheaf, and similar to spherulite.

PA-I粉末的SEM研究表明粉末的形态结构呈捆束状，类似于球晶。

II: ① take a thin wire, one end with sand paper wipe, and then lightson alcohol to non-yellow flame ignition,② wire with the end of the water dip, and then dip a number of sodium chloride or anhydrous sodium carbonate powder,③ ignited a new spirit lamp (lamp wick is clean, pure ethanol),④ the stained sodium salt powder on the wire on the ignitiontip, when there is a sharpsmall yellow flame, which is sodium flame.

方法二：①取一条细铁丝，一端用砂纸擦净，再在酒精灯外焰上灼烧至无黄色火焰，②用该端铁丝沾一下水，再沾一些氯化钠或无水碳酸钠粉末，③点燃一盏新的酒精灯，④把沾有钠盐粉末的铁丝放在外焰尖上灼烧，这时外焰尖上有一个小的黄色火焰，那就是钠焰。

PM Injection Molding / Precision Casting structural components include : Sleeve Bearing, oil bearings, bushings, flanged connecting sleeve; Double gears, bevel gear, gear, Pulley, synchronous wheel, sprocket, AK47 toy gun gear, various micro-precision gear drive; PM microporous filters, filter tubes, mufflers and filtration materials, Copper filters, stainless steel trap; mixer blades, coffee machine cutter heads Soymilk Machine grinding pieces Juicer blades, Juice blades, and household electrical appliances, metal accessories; Oscillator phone, cell phone parts and notebook parts; Metal keys, ATM machine keys; Toys accessories, fiber accessories; various copper, iron, and stainless steel products, alloy products; automobiles, motorcycles, machine tools, electrical machinery and office equipment, medical equipment and other types of machinery, electrical appliances, electric / pneumatic products within the precision components; Industries products within the structure of precision metal parts, metal accessories.

粉末冶金注射成型/精密铸造结构零件包括：含油轴承、轴套、法兰、连接衬套；双联齿轮、伞齿轮、锥齿轮、直齿轮、皮带轮、同步轮、链轮、AK47玩具枪齿轮、斜齿轮、扇齿轮、各类微型精密传动齿轮；粉末冶金微孔过滤器、滤芯、滤片、滤筒、滤管、消声器、过滤材料、铜过滤器、不锈钢过滤器；搅拌机刀片、咖啡机刀盘、豆浆机研磨件、榨汁机刀片、果汁机刀片、家用电器五金配件；手机振子、手机零件、笔记本零件；金属按键、ATM机按键；玩具配件、光纤配件；电机转子、凸轮、凹轮；各种铜基、铁基、不锈钢制品、合金制品；汽车、摩托车、机床、电机、办公器械、医疗器械及其他各种机械、电器、电/气动产品内的复杂异形精密零件、非标准件；各行业产品内部用的精密金属结构零配件、五金配件。

The antimony doped tin oxide nanoparticles were synthesized at 240℃for 17 h by the complexing hydrothermal oxidation method using stannate, antimony white and sulphuric acid as the starting materials, sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant. The resulting powders were characterized by means of differential thermal analysis, infrared spectrometry, X-ray diffraction and transmission electron microscope. The mechanism of the preparation of ATO powder was investigated as well.

摘 要：以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合水热氧化法在水热氧化温度为240℃和水热保温时间为17 h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合水热氧化合成机理进行探讨。

The antimony-doped tin oxide nanoparticles were synthesized at 240℃ for 17h by the complexing-hydrothermal oxidation method using stannate, antimony white and sulphuric acid as the starting materials, sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant. The resulting powders were characterized by means of differential thermal analysis, infrared spectrometry, X-ray diffraction and transmission electron microscope. The mechanism of the preparation of ATO powder was investigated as well.

以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合－水热氧化法在水热氧化温度为240℃和水热保温时间为17h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合－水热氧化合成机理进行探讨。

The antimonydoped tin oxide nanoparticles were synthesized at 240 ℃ for(17 h) by the complexinghydrothermal oxidation method using stannate,antimony white and sulphuric acid as the starting materials,sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant.

以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合水热氧化法在水热氧化温度为240℃和水热保温时间为17 h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合水热氧化合成机理进行探讨。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。