烧结

In sinter s,MgO mainly distributes in ferric phase and reacts with hematite and wustite generating magnesioferrite and MgO-bearing wustite.

烧结矿中MgO主要分布于铁相中与赤铁矿和富士体固溶形成镁质赤铁矿和镁质富士体，Mg2+在硅酸盐粘结相中的固溶量很低。

Meros technology represents a new milestone in the treatment of sinter offgas.

Meros技术代表了烧结烟气处理一个新的里程碑。

In a series of test campaigns conducted from 2005-2006 in a demonstration plant installed at the sinter plant of the Austrian steel producer Voesalpine Stahl (figure 6), the technical and economical advantages of the Meros process could be verified.

2005到2006年间，在澳大利亚林芝钢厂烧结车间建造的实验厂进行了一些列的实验（如图6），Meros系统的技术和经济优势都得到了验证。

In the first step of the Meros process adsorbents such as specially prepared lignite coke or activated carbon powders as well as desulphurization agents ( sodium bicarbonate or hydrated lime) are injected into the sinter offgas stream at a high injection velocity- exceeding 30m/s- in the counter-current flow direction.

Meros处理系统的第一步就是将吸附剂，诸如特别准备的褐煤焦或者活性碳粉末以及脱硫剂以超过每秒30米的注射速度以逆流方向加入烧结尾气气流中。

In the thesis, By using x-ray diffraction, energy spectrum analysis, metallographical analysis and scanning electron microscopy and opitimzing technology, the effects of the element Ga was researched and discussed in the magnetic performance and microstructure of Sintered Nd15Fe78B7+Ga permanent magnets made by powder metallurgy.

本文采用粉末冶金方法，通过x射线衍射、能谱分析、金相分析和电子扫描等一系列的检测与分析方法，优化工艺，研究并讨论了添加Ga元素对烧结Nd_(15)Fe_(78)B_7系永磁体磁性能和微观结构的影响。

The phase structure of the ceramic-coating includes γ-Al2O3, AlPO4 and CoO. The forming process of the ceramic-coating includes iron movement, melting of surface layer, movement of electrolyte towards the melting-zone and the final nucleus-forming and sintering. The ceramic coating looks like islands and islets. The ceramic coating and the matrix are integrated metallurgically.

结果表明：该陶瓷膜层由γ-Al2O3， AlPO4和CoO等组成；通过对陶瓷膜层的表面形貌和显微结构观察及分析，发现陶瓷膜层形成过程是一个离子运动，表面层不断被击穿形成熔融区，处理体系中的电解质不断向熔融区运动、成核并迅速烧结的过程；陶瓷膜层呈现岛屿状；陶瓷膜层与基体之间为冶金结合。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

YBCO films were fabricated on0~15°-miscut SrTiO3 (001) single crystal substrates by pulsed laser ablating apowder sintered targ...

用脉冲激光蒸发普通固态烧结靶在0~15°斜切SrTiO_3 (001)单晶基片上制备了YBCO薄膜。

The characteristics and process of the coated sand moldmade by selective laser sintering rapid prototyping are introduced.

介绍了用选择性激光烧结快速成型技术直接制造覆膜砂铸型的特点及工艺过程。

The results indicate that the size and morphology of as-prepared molybdic acid aggregates and annealed products-α-MoO3 powder were affected by the concentration of ammonium molybdate, HAc and CTAB.

结果表明，钼酸铵的浓度、醋酸和CTAB对多钼酸聚集体及其烧结后形成MoO3粉体的形貌和尺寸有影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。