织物上化学镀镍工艺的研究

本文介绍了用化学镀方法制备镀镍织物的工艺，研究了影响镀层沉积速度和镀层含磷量的主要工艺参数，并对镀镍织物的导电性及镀层与织物表面的结合强度进行了考察。     

微量元素磷对Rene‘N4单晶镍基高温合金组织和性能的影响

本文着重研究了微量元素磷对Ｒｅｎｅ＇Ｎ４单晶镍基高温合金组织和性能的影响，研究结果表明，随着Ｐ含量的增加，凝固组织中ｒ／ｒ＇共晶量越来越多，且当Ｐ含量达０．０５６％时，在ｒ／ｒ＇共晶前沿出现了大量的磷化物共晶；凝固组织的枝晶间距也随着Ｐ含量的增加而减小，在８５０℃／５００ＭＰａ条件下，该合金的持久寿命随Ｐ含量的增加而显著降低；其持久断口的分形维数Ｄｆ＝１．４１±０．０１。     

大截面金属镍棒的焊接工艺与实践

金属镍在电渣精炼前需用氩弧焊焊接接长,为保证焊接接头具有足够熔深,需要大参数进行焊接.采用直流焊机并联使用解决了焊机电流不足的情况,通过采取垫高镍棒端头,使接缝处于受压状态,以防止裂纹的产生.     

D-甘露醇的生产方法

D-甘露醇是一种很有价值的营养甜味剂，目前工业化生产甘露醇是用1：1的葡萄糖与果糖混合物在有镍催化剂下加氢而得。由于其收率低（25％～30％），需要寻求一种更好的工艺。本文列举了一系列不同生产方法的文献，包括把已知的工艺相结合可能有的新工艺。可以看出，从葡萄糖与葡萄糖／果糖浆制造甘露醇时，较好的工艺是同时使用葡萄糖异构酶与铜一硅催化剂（结合工艺）。     

刻蚀电子线路板废液制取混凝剂研究

电子工业刻蚀电子线路板广泛使用氯化铁溶液 ,其排出液中含有大量铜、镍离子 ,采用铁粉还原的方法能有效地去除镍离子 ,处理后的溶液符合饮用水混凝剂要求 ,可作为水处理混凝剂使用 ,为该类废液提供了综合利用的方法。     

Nature and Growth of Interaction Layers Formed during the Reaction between Solid Ni and Liquid Al

The nature and growth of the interaction layers between solid Nb and liquid Al has been studied by carrying out the tests on Nb(s)-Al(l)and Nb(s)-Al(l)-Ni(s) reaction couples isothermally reacted between 700℃and 900℃for different time intervals.It has been found that the interaction layer between Nb and Al contains two parts:a thin continuous layer of NbAl3 adjacent to the Nb surface and a two-phase zone constituted of NbAl3 particles dispersed in an Al matrix.Although the nature and growth of interaction layers follows the sour-stage mechanism,a typical cruciform pattern does not occur in Nb(s)-Al(l) reaction couples.However,a cruciform pattern was observed in Nb(s)-Al(l)-Ni(s)reaction couples.The movement of NbAl3 particles is important to the production of cruciform pattern in the reaction couples.     

Influence of Ti Powder Characteristics on Combustion Synthesis of Porous NiTi Alloy

Porous NiTi shape memory alloy (SMA) is a novel biomedical material used for human hard tissue implant .The influence of elemental titanium powder characteristics such as powder morphology, particle size and specific surface area( SSA) on the minimal ignition temperature ,combustion temperature and final product of porous Ni-Ti SMA fabricated by combustion synthesis method was investigated in this paper by scanning electron microscopy (SEM) and laser diffraction.The preliminary data indicated that the titanium powder characteristics had a strong effect on combustion synthesis of porous NiTi SMA.     

Molecular Dynamic Simulation of Lattice Distortion Region Produced by Rounded Grain Boundary in Nanocrystalline Materials

The distortion structure in nanocrystalline NiAl is studied using molecular dynamics simulation.The rounded grain boundaries in these nanograins are a direct source for the observed lattice distortion.The change of grain size affects directly the volume fraction of the distorted lattice in the nanograin.     

蒸发氧化法制备高品质活性氧化镉粉末

开发了高品质活性氧化镉粉末的制备工艺，系统地探索了工艺条件对氧化镉电池材料电化性能的影响。对样品进行了物化性能及电性能检测，结果表明，采用蒸发氧化法可制备出镍镉充电电池用高品质活性氧化镉粉末。