Electrochemical-and Spectroscopic-Fundamental Study on Condensed Plasma System

本项目取得的主要成果如下。该项目的另一个成果是出版了名为“Plasmas & Ions”的期刊。由于“凝聚等离子体”反应在概念上的重要性，它是由该项目的首席研究员首先提出的，在该项目中成核和构建，并在日本国际会议上得到了很好的评价（9月，1998年，Kokura）和中国。(Oct., 1998年在西安）2.发现<3->了在金属Ti电极上，N_3 ~-离子的氧化和NO_3 ~-离子的还原都能合成TiN化合物的新事实，这一结果可用于其它金属氮化物如FeNx的合成。ZrN.WN.NbN.. 3.通过XPS和Ramman谱分析，发现第二阶段化合物表面覆盖了一层氟化石墨，可以保护氟砷酸石墨免受空气中水分的侵蚀.这是 关于我们 电化学测试表明，Pd-Li合金的吸氢容量大于金属Pd.对直流放电电解法进行了尝试，改进了其电路，使其稳定，可以生产金属细粉，有望成为金属粉末生产的新方法.用直流电弧等离子体射流形成100 - 200 μ m厚的氮化物膜。X射线衍射和扫描电镜分析表明，在等离子体气氛中，N2/H2的比例对膜的厚度有很大的影响。通过等离子体火焰在300 - 800 μ m波长范围内的光谱，NH自由基和H自由基物种在合成反应中起着重要作用.利用JAMIC的落轴装置研究了重力对冷凝等离子体反应沉积金属形貌的影响，通过比较重力和无重力条件下电沉积微晶的SEM图像，发现重力对金属沉积的形核或生长速率有一定的影响。少

The main results obtained by this project are as follows. And also one of another fruits of this project was a publication of journal named "Plasmas & Ions". It has been introduced due to the importance in the conception as the "Condensed Plasma" reaction which was firstly proposed by the head investigator in this project, was nucleated and constructed in this project and has been given the exellent appraise at the International Conference in Japan (Sept., 1998, Kokura) and China. (Oct., 1998 at Xian)2. A new fact that both the oxidation of N^<3-> ion and reduction of NO_3- ion can sythesize a TiN compound on metallic Ti electrode was found. And these results in condensed plasma reaction can introduce to synthesize the various other metallic nitrides such as FeNx. ZrN.WN.NbN..3. By means of XPS and Ramman spectroscopy, a second stage compound was covered with planar-sheet graphite fluoride which can protect the bulk graphite fluoroarsenates from the attack of moisture in air.3. It was … More cleared after the electrochemical measurments that a capacity of hydrogen absorbability in Pd-LI alloy was larger than metallic Pd.4. An attempt of DC discharging electrolysis improved in their circuit to be stable can produce metallic fine powder and expected to be a new method for metallic powder production.5. A thick nitride compound film with 100 - 200 mum was formed by a DC arcc plasma jet. X-ray micro-diffraction pattern and SEM microscopy revealed 3 different phases on the surface whose thickness were strongly depend on plasma gas ratio of N2/H2. By the spectroscopy of plasma flame in the range of 300 - 800 mum wave length, NH radical and H radical species were playing an important role in the synthesizing reaction.6. Effects of gravity on deposited metal morphology in the condensed plasma reaction were examined using drop shaft apparatus in JAMIC, the gravity has a certain effects on nucleation or growth rate in metallic deposition after comparing the SEM images of microcrystals electrodeposited with and without gravity. Less