粉末

The lattice constant ofα—Cu is increased during ball milling because of the dissolution of B and Ti in it.

首次研究了机械合金化粉末 Cu中 Ti B2形成的热力学和动力学。

With the prolongation of milling time, the crystal size of mixed the powder reduced, while its lattice constant and lattice distortion increased gradually.

随着机械合金化的进行，粉末的晶粒度逐渐减小，而晶格常数和畸变则不断增加。

The distribution of microhardness is not uniform across the anodic film for the most specimens and the general trend is that the value of the hardness is higher both in the outer film adjacent to the surface and in the inner film near the interface between film and substrate for the specimens with type Ⅱ and type Ⅲ anodizing technology. The measured modulus for anodic film with type Ⅲ anodized is 80.77Gpa. The thermal expansion coefficients of anodic films are measured by two different methods based on X-ray diffraction technique. One way is to detect the lattice spacing change of crystalline phase in powder specimen of anodic film as the increment of temperature by powders of anodic film; and the other way is to determine the thermal stress by entire specimen, that is, the anodic film and the substrate attached together.

利用X射线衍射的方法采用两种不同手段对氧化膜的热膨胀系数进行测试，一种方法为采用氧化膜粉末样品，测量温度变化过程中晶面面间距的改变，进而推出其热膨胀系数；另一种方法为整体试样测试氧化膜中的热应力，通过热应力和热膨胀系数之间的关系计算氧化膜的热膨胀系数。

In order to reach the purpose of using pre-laser cladding method preparation of Ni-based amorphous alloy coatings on 45 steel substrate surface by the method was carried out. The principles of the three clusters and the amorphous line of the law of composition rules were used. The Ni59.35Nb34.45Sn6.2 alloying powder which has a great glass-forming ability in conventional preparation methods of amorphous alloys was chosen. In the protection of atmosphere, the amorphous surface coating was prepared. The microstructure, micro-hardness and performance of the different output power of the laser cladding were analyzed.

中文摘要：为了达到研究预置激光熔覆可以在45钢上制备Ni基非晶合金涂层的目的，采用非晶形成能力三判据原则及非晶成分团簇线定律法则，选择了采用常规非晶合金制备方法中具有极大玻璃形成能力的Ni59.35Nb34.45Sn6.2合金粉末，在保护气氛下，制备非晶涂层，并对不同输出功率下得到的涂层进行微观组织和结构表征及性能测试。

A heavy white poisonous powder, essentially basic lead carbonate, used in paint pigments.

铅白一种白色有毒重粉末，用于制造绘画颜料必不可少的基本碳酸铅。

In the thesis, powder microelectrode technique and the paste electrode technique were used to investigate the preparation of PbO〓/PbSO〓 and PbSO〓/Pb electrodes from lead carbonate, the electrode performances were examined by various electrochemical and analytical methods.

本工作分为粉末微电极和涂膏电极两大部分，研究和论证了由PbCO〓制备铅酸蓄电池电极材料的可行性。

The products consisted of yellow lead chromate phase and red chromate molybadate solid solution phase . The synthesis condition has a great influence on the ratio of the yellow phase and the red solid solution phase. The index for x-ray diffraction pattern of red so...

指标化结果表明：红色相钼铬酸铅固溶体属单斜晶系，空间群C_2/c，a；7.250(8A，b：12.444(7)A，c：5.119(5)人，夕=132.58(6)°，化学式PbCr_(0.88Mo_(0.12)O_4每个单胞由四个分子组成所得粉末衍射的数据可以代替JCPDS19—685号卡片，可以用定量PbCrO_4相含量的方法来表征颜料的质量。

Despite the many advantages over asbestos-based friction material, thermal decomposition or liquescence of phenolic resin due to frictional heating can cause semi-metallic friction material to fade away (a phenomenon of friction decline with operation time).

中文摘要半属基摩擦材主要是使用一种或多种耐热的树脂(以酚醛树脂最为广泛使用)为基材，添加各属粉末或纤维以强化基材，并添加润剂、摩擦调整剂等增加材的磨耗性能，其成份中通常含有超过50 wt%的属成份。

The saturated solution can be directly recycled in distillation and turned into renewed solvent which has the same dissolving performance as the untapped one.After disparting from aluminum foil, the mixture of LiCoO_2 and acetylene black was lixiviated to extract cobalt ion. The leaching efficiency of cobalt was shown to be as high as 90% in the lixiviation experiments.

对钴锂膜上与铝箔脱离后的LiCoO_2、乙炔黑混合粉末，通过浸出钴的实验研究，确定了盐酸体系为合适的浸出体系，在盐酸浓度为6.67mol/L，反应温度80℃，反应时间50分钟的最优化浸出条件下，钴金属的浸出率可达90%以上。

The luminous paint is composed of long-afterglow phosphor powder coated with nano titanium dioxide and luminous paint compound.

由纳米二氧化钛包覆处理的长余辉发光粉末材料和发光涂料组合物两步进行。

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％。