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RESEARCH ON AS-CAST GRAIN REFINING TECHNOLOGY BY INOCULATING CLEAN STEEL WITH TITANIUM OXIDE M.L.Wang1,P.Zhao1,Y.G.Wang2,G.G.Cheng2,X.E.Yang2,L.Y.Wang2,Y.L.Li2 (1.Central Iron and Steel Research Institute, Beijing 100081, China;2.University of Science and Technology Beijing, Beijing 100083, China) Abstract:Precipitation condition and nucleation of Ti2 O3 during solidification of clean steel......
Effects of Cerium Oxide on Ni/Al2O3 Catalysts for Decomposition of CH4 and C2H4 杨咏来1,徐恒泳1,李文钊1 (1.Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China) Abstract.... A novel model of carbon deposition of CH4 or C2H4 decomposition was proposed. Key words:catalytic chemistry; Ni/Al2O3 catalyst; cerium oxide; methane; ethylene; decomposition; rare earths; [全文内容正在添加中] ......
-conduction to conduction mode during intruding nanosecond transients. Key words: capacitance; metal oxide varistor; nanosecond transient; rare earth oxide; transition delay; ytterbium oxide Cite...: https://doi.org/ 10.1007/s11771-018-3917-2. 1 Introduction Metal oxide (ZnO) varistors are predominantly used to protect the electric circuit in both low and high voltage applications against surges......
of superheater/reheater tubes, a heat-transfer physical model of tubes with the oxide film was established by studying the heat transfer process of superheater/reheater tubes and the empirical formula. The temperature changing processes of tube outer-wall, the oxide scale/substrate interface and the oxide scale/steam interface were analyzed at different tube geometries, gas temperatures, steam flows......
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Nitric Oxide Alleviates Oxidative Stress Caused by Lanthanum in Rice Leaves Xiao Qiang1,Huang Xuan1,Wu Feihua1,Pei Zhenming3,Zheng Hailei1,Ru Qiaomei1 (1.School of Life Sciences, Xiamen University... that NO relieved La toxicity in rice. A possible role for NO effects on antioxidant activity was discussed. Key words:lanthanum; nitric oxide; antioxidant enzyme; oxidative stress; rice; rare earths......
Spherical modification of tungsten oxide powder and its mechanism analysisCong-Cong Wang1,Cheng-Chang Jia1,Peng Gao1,Guo-Cheng Gai2,Yu-Fen Yang21. School of Materials Science and Engineering... oxide powder was treated by particle composite system and its effects were studied. Morphologies of particles were investigated by scanning electron microscopy(SEM). Particle size analysis was carried......
Preparation and electrochromism of pyrochlore-type tungsten oxide filmQiu-Sheng Zhou,Yong-Kun Chen,Xiao-Bin Li,Tian-Gui Qi,Zhi-Hong Peng,Gui-Hua LiuSchool of Metallurgy and Environment, Central South.... The as-prepared powder was made into a soliquoid,from which films were made by dip coating process with indium-tin oxide(ITO).The obtained films were characterized by thermogravimetric......
Study on phosphating treatment of aluminum alloy:role of yttrium oxide张圣麟College of Chemistry and Environmental Science,Henan Normal University摘 要:Zinc phosphate coatings formed on 6061-Al alloy,after dipping in phosphating solutions containing different amounts of Y2O3(yttrium oxide) ,were studied by scanning electron microscopy(SEM) ,X-ray diffraction......
Catalytic graphitization of carbon/carbon composites by lanthanum oxide张灿1,路贵民2,孙泽1,于建国1,21. State Key Laboratory of Chemical Engineering, East China University of Science and Technology2. National...="ChDivSummary" name="ChDivSummary">Graphitized carbon/carbon composites were prepared by the process of catalytic graphitization with the rare-earth catalyst, lantha-num oxide (La2O3), in order to increase......