镍铁

New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene Polymerization Facile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that: 1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.

本工作的新贡献如下：(1)、球形氯化镁负载后过渡金属催化荆催化乙烯聚合本文将配合物2，3-双(2，6-二异丙基苯亚胺)丁烷二溴化镍(1)和配合物2，6-二[1-(2，4，6-三甲基苯亚胺)乙基]吡啶二氯化铁(2)分别直接负载于经不同热脱醇温度处理的球形氯化镁载体上，研究了氯化镁载体的脱醇温度对负载化后过渡金属催化剂及其聚合物的影响，研究表明： 1、通过对球形MgCl_2·2.56C_2H_5OH载体进行热脱醇处理，可以获得合适机械强度、较高比表面积和较高孔隙度的球形氯化镁载体； 2、BET，XRD，IR，SEM，GPC和DSC研究表明，脱醇温度极大地影响负载后过渡金属催化剂的活性和聚合物的性能。

It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.

本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题，系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性，通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析，全文主要内容如下： 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明：红磷在空气中发生缓慢氧化、歧化反应，微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度，其中铜离子的作用最为明显，而铝、锌等离子减慢了红磷的氧化速度，银离子对减少红磷的吸湿性效果最好。

According to AAS data, Fe, Ni and Mn in pits dissolved into ions in form of divalence, and Cr in form of trivalence both in the presence and absence of PD.

结果表明：304不锈钢蚀孔内，铬元素以三价，铁、镍和锰以二价离子形式溶解，缓蚀剂PD不改变各元素溶解的价态。

Key: double-bitted iron key, nickel plate.

钥匙：双面铁匙，镀镍。

The effects of the operating parameters on the electrodeposit of the amorphous Fe-Ni-Cr alloy were discussed in detail.

考察了运行参数对镀层的非晶态铁镍铬合金进行了详细讨论。

In the nickel samples charged electrolytically with hydrogen in a solution of 1NH〓SO〓+250mg/l As〓O〓 a hydride is formed.

第二部分研究了高纯铁中的氢损伤规律和冷轧镍中氢化物的分解过程。

In our study, two novel catalysts NiPd and FeC were discovered for CNT growth at low temperature.

本论文中，我们发现两种新颖的催化金属镍钯及铁碳合金适合在低温下成长奈米碳管。

Pure iron ingot, ferrochromium pillet, nickel balls and silicon slice were melted and refined with an induction furnace.

纯铁锭、铬铁块、镍球与矽块以304L不锈钢材的成份比例投入高周波炉内进行熔炼。

The electroplated ferronickel shutter is suspended by a silicon spring The shutter is fabricated by the nonsilicon surface micromachining techniques. The planar coil is fabricated by high-aspect-ratio photolithography and mask-plating processes. And the silicon spring and the fiber alignment components are fabricated by the reactive ion etching and by the silicon anisotropic etching process.

电镀铁镍制作的挡光片被固定在一个硅弹簧上，该挡光片采用非硅表面微加工工艺制作，平面电感线圈利用高深宽比的光刻工艺和掩蔽电镀工艺制作，硅弹簧和光纤对准元件采用反应离子刻蚀和硅的各向异性腐蚀工艺制作。

An ICP AES method for the determination of Cu,Si,Al,P,Cr,Ni,Mn,W in ferrovanadium has been established, based on the selection of proper wavelength and background correction.

叙述采用等离子发射光谱法同时测定钒铁中的铜、硅、铝、磷、铬、镍、钨、锰等微量元素，试样用稀王水分解，选择适当的波长与背景校正进行分析测定，方法回收率在 95%～ 1 0 5%之间，相对标准偏差均小于 4%，本方法快速准确，精密度良好。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。