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of ruthenium powder 10-6 表4 高纯钌粉GDMS分析结果(质量分数) Table 4 GDMS analysis of high purity ruthenium powder 10-6 图3及图4所示分别为前驱体煅烧氢还原后获得的钌粉的SEM像及粒度分布. 图3 煅烧-氢还原后得到的钌粉的SEM图 Fig. 3 SEM of ruthenium powder after calcinations-hydrogen reduction 图4 高纯钌粉的粒度分布 Fig. 4 Particle size distribution of high purity ruthenium powder 由图3和图4可以看出:钌粉前驱体经煅烧氢气还原后,获得的高纯钌粉颗粒微观形貌仍保持球形,即颗粒微观形貌在煅烧过程中具有遗传性,且颗粒粒径趋于均匀化.高纯钌粉粒度基本呈正态分布,最大聚集体粒......
Flow stress behavior of high-purity Al-Cu-Mg alloy and microstructure evolutionLI Li(李立)1, LI Hui-zhong(李慧中)1, 2, 3, LIANG Xiao-peng(梁霄鹏)2, HUANG Lan(黄岚)2, HONG Tao(洪涛)4(1. School of Materials... behavior of high-purity Al-Cu-Mg alloy under hot deformation conditions was studied by Gleeble-1500, with the deformation temperature range from 300 to 500 °C and the strain rate range from 0.01 to 10 s-1......
Preparation of high-purity tellurium powder by hydrometallurgical methodYuan Liu,Ya-Jie Zheng,Zhao-Ming SunSchool of Metallurgy and Environment,Central South University摘 要:powder with size of \5 lm and purity of[99.999 % is obtained.关键词:......
Trans. Nonferrous Met. Soc. China 24(2014) 553-560 Valence states, impurities and electrocrystallization behaviors during molten salt electrorefining for preparation of high-purity titanium powder...; accepted 20 January 2014 Abstract: High-purity titanium powder was prepared by molten salt electrorefining from sponge titanium in NaCl-KCl-TiClx salts. The titanium valence, purity......
Pseudo-capacitance of ruthenium oxide/carbon black composites for electrochemical capacitorsXiaofeng Wang1), Dianbo Ruan1), Peng Wang2), and Yiqiang Lu2) 1) Department of Precision Instruments...">Hydrous ruthenium oxide was formed by a new process. The precursor was obtained by mixing the aqueous solutions of RuCl3·xH2O and NaHCO3. The addition of NaHCO3 led to the formation of an oxide......
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2007; accepted 10 September 2007 Abstract: The high-purity AlON ceramics, AlON/Al2O3 and AlON/AlN multiphase ceramics were prepared by pressureless sintering under nitrogen-based atmosphere with raw... ceramics and other multiphase ceramics exist in the form of Al5O6N, whose solid-solution zone is 33.4%(mole fraction) AlN belonging to spinel structures. The average grain size of high-purity AlON......
Synthesis of high-purity Ti2AlN ceramic by hot pressing YAN Ming(严 明)1, CHEN Yan-lin(陈艳林)1, MEI Bing-chu(梅炳初)2, ZHU Jiao-qun(朱教群)2 1. College of Chemistry and Environmental Engineering, Hubei...; Abstract: High-purity Ti2AlN ceramic was prepared at 1300 ℃ by hot pressing(HP) of Ti/Al/TiN powders in stoichiometric proportion. The sintered product was characterized using X-ray......
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Composition change and capacitance properties of ruthenium oxide thin filmLIU Hong(刘泓)1, GAN Wei-ping(甘卫平)2, LIU Zhong-wu(刘仲武)1, ZHENG Feng(郑峰)2(1. School of Materials Science and Engineering, South... with specific capacitance of 782 F/g. Besides, it is found that the specific capacitance of the film decreased by roughly 20% with voltage scan rate increasing from 5 to 250 mV/s.Key words:ruthenium oxide......
