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and Materials Processing,Shanghai University,Shanghai 200072,China摘 要:The effect of Nb doping on the oxygen permeation and stability of SrCo0.8Fe0.2O3-δ(SCFO) was investigated comprehensively.Cubic perovskite phase was formed in SrCo0.7Fe0.2Nb0.1O3-δ(SCFNO).The SCFNO with a thickness of 1 mm had a high level of oxygen permeation flux of 1.4 ml.min-1.cm-2......
Oxidation and thermal fatigue of EB-PVD thermal barrier coatings on tube superalloy substrate GAO Yu, ZHANG Chun-xia, ZHOU Chun-gen, GONG Sheng-kai, XU Hui-bin Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Received 20 April 2006; accepted 30 June 2006 Abstract: Two-layer structure thermal barrier coatings (TBCs......
. The influence of temperature and trans-membrane pressure on hydrogen separation and permeation was also carried out. The gas permeation and selectivity demonstrate that this membrane may have... purchased from Aladdin Chemical Co. Ltd. Gases for permeation experiments, such as nitrogen (N2), hydrogen (H2), methane (CH4) and carbon dioxide (CO2), with purities >99.50% were obtained from Changsha......
Hydrogen Absorption and Release Behavior in Hydrogen Decrepitation Process of Nd-Fe-B Alloys 陈晓东1,杨昌平1,陈秀云1,石大立1,朱静1,姜忠良1 (1.School of Materials Science & Engineering, Tsinghua University, Beijing 100084, China) Abstract:The behavior of hydrogen absorption and release in hydrogen decrepitation (HD) process of Nd-Fe-B alloys were investigated. The results reveal that the reactivity......
Comparison of thermal shock behaviors between plasma-sprayed nanostructured and conventional zirconia thermal barrier coatings LIU Chun-bo(刘纯波)1, ZHANG Zhi-min(张志民)1, JIANG Xian-liang(蒋显亮)1, LIU... and ZrO2-7%Y2O3 (mass fraction) conventional thermal barrier coatings(TBCs) were deposited by air plasma spraying(APS). The thermal shock behaviors of the nanostructured and conventional TBCs were......
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Phase transformation rate in hydrogen absorption of magnesium-based materialsZHANG Wen-cong(张文从)1, FANG Wen-bin(房文斌)1, YU Zhen-xing(于振兴)2, ZHAO Guo-liang(赵国亮)1, WANG Er-de(王尔德)1, SUN Zhi-jie(孙志杰)(1...:The hydrogen storage material Mg-Ni-MnO2 was prepared by mechanical alloying under the hydrogen atmosphere and its phase transformation rate in hydrogen absorption was studied using the self-designed......
Characteristic Investigation of Nano-Crystal Hydrogen Storage Alloys Tang Renheng1,Lu Qiyun1,Xiao Fangming1,Huang Lili1,Peng Neng1,Wang Ying1 (1.Rare Earth Materials Research Center, Guangzhou Research Institute of Nonferrous Metals, Guangzhou 510651, China) Abstract:A Ml (NiCoMnA1)5 hydrogen storage alloys was prepared by double-roller rapid quenching.Its microstructure, electrochemically......
J. Cent. South Univ. Technol. (2011) 18: 1063-1067 DOI: 10.1007/s11771-011-0804-5 Hydrogen permeability of slags containing calcium fluoride DONG Yan-wu(董艳伍)1, 2, JIANG Zhou-hua(姜周华)1, LIANG Lian... South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: To investigate the hydrogen permeability of calcium fluoride used for electroslag remelting (ESR) process, "Gas-slag- metal......
