查询词典 alumina

Using inorganic aluminous salts as precursors and hexamethylenetetramine as the catalyst, alumina nanonpowder was fabricated by sol-gel procedure and then incorporated in the preparation of body batch for thickly-glazed, thin-bodied celadon wares.

以无机铝盐为先驱体，六次甲基四胺为催化剂，采用溶胶－凝胶法制备了纳米氧化铝粉体，将纳米氧化铝粉体应用于薄胎厚釉青瓷瓷胎中，研究了粉体对青瓷瓷胎的增强作用。

Found that the constitution of the absorbent could affect the debinding efficiency greatly; for the liquid phase debinding temperature extent, the mechanism of the absorbent is capillary action, 100~200 screen mesh alumina powder had the best debinding efficiency at 130℃; for the gas phase debinding temperature extent, adding some active carbon to the absorbent could control the formation of the hyperoxide barrier lay, accelerate the mass transfer rate, also enhance the debinding efficiency; studied the relationship between the debinding efficiency and the shape of the green part and the solid load; furthermore, did trial study on the solvent debinding.

发现吸附剂的组成对脱脂效率有较大影响；在液相脱脂温度段，吸附剂的作用机制为毛细管作用，100~200目的氧化铝粉末在130℃时具有最高的脱脂效率；在气相脱脂阶段，在吸附剂中引入活性碳可以抑制不利于脱脂的过氧化物阻挡层的形成，加快气相在坯体中的传质速率，进而提高脱脂效率；研究了坯体形状尺寸和装载量等因素与脱脂效率的关系；还对溶剂脱脂进行了试探性研究。

It is shown that the combination of this process with the interstage cooling in precipitation allows us to obtain, on a very regular basis, a consistent sandy alumina with the main following characteristics: Soda content lower tha.

分解过程增加中间降温装置后，分解产出率得以提高，生产出的砂状氧化铝苛性碱含量低于 330 0× 10 - 6，小于 45 μm的粒级低于 8%。

Alumina ceramic is one of the most important applied materials for electronic packaging. However, it has to be joined with other materials due to the limitation of its intrinsic property.

氧化铝陶瓷是在电子封装中被广泛运用的材料之一，但由于氧化铝陶瓷的一些固有特性限制，通常需要与其他材料组合在一起使用。

Hydrocarbon structural-group components in the hydrotreating of residual oils The residual oils were preseparated into 4 fractions by alumina/silica serial column A method for measuring the hydrocarbon structural-group components in saturated fraction, aromatic fraction, and resin fraction of residual oils was established using low resolution, high ionization voltage mass spectroscopy.

渣油加氢处理过程烃类结构族组成变化研究采用氧化铝/硅胶串联柱对渣油样品进行四组分预分离，建立了低分辨、高离子化电压质谱测定渣油饱和烃、芳烃和胶质组分烃类结构族组成的方法。

The higher selectivity to isopentenes, however, was regarded as a consequence of both insufficient active sites for further hydrogenation of isopentenes to isopentane and lower electronic interaction between Pd and the alumina surface.

而较高的选择性则可归因於没有足够的钯活性中心可供异戊烯进一步氢化生成异戊烷以及钯金属和氧化铝间较低的电子效应所致。

On the basis of Ohm's and Kirchhoff's law, The mathematic model that can be used to caluculate the 3—D current distribution in alumina reduction cell was derived, and the computer program was compiled by finite differential method.

根据欧姆定律和基尔霍夫定律，用有限差分法导出了求解铝电解槽内三维电流分布的数学模型，编制了计算程序，在国内首次较准确地计算了铝电解槽内三。。。

The coating material is prepared with lepidolite 35-55 wt%, potassium feldspar 5-15 wt%, talcum powder 10-20 wt%, soft clay 15-25 wt%, active alumina powder 3-7 wt%, and quartz powder 5-10 wt%, and through mixing into slurry after being added with sodium carboxymethyl cellulose 0.3-1.0 wt%, water glass solution 3-7 wt% and water 30-40 wt%, painting or spraying onto the lining of furnace, drying and sintering at 1200-1300 for 4-12 hr.

本涂层材料在制备时外加羧甲基纤维素钠 0.3～1.0％，水玻璃溶液 3～7％，水 30～40％，将上述混合物经搅拌成均匀的浆体，涂抹或喷涂在炉门内衬材料上，干燥后经1200℃～1300℃下4～12小时的烧成即可制得。

Objective: To forge top-quality, lily-white, spotless alumina for the sake of clinical requirement.

目的：煅制质优、纯白无杂质的枯矾，适应临床需要。

Shanghai yuejiang titanium chemical manufacturer co., ltd. is a leading professional chemical manufacturer in China, integrating technical research, manufacture as a whole. With its several producing base, the company is specialized in producing titanium dioxide, lithopone, Barium sulphate, Zinc oxide. Alumina, Manganese carbonate, etc.

上海跃江钛白化工制品有限公司是一家集科技、研发、生产于一体得大型粉体深加工化工企业，专业生产高品质钛白粉、硫酸钡、立德粉、氧化铝、氧化锌、碳酸锰等无机精细粉体系列产品，拥有多个生产基地。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新