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First-Principles Study of the Influence of Lattice Misfit on the Behavior and the Ductility Effect of Hafnium in Ni-Ni3Al SystemYuxi Wu1,Jia Guo1,Jieshan Hou2,Wanglin Zhang1,Renzhong Huang3,Xianguo... the segregation behaviors of Hafnium(Hf) and explore the influence of lattice misfit on the ductility effect of Hf.It is found that though Hf prefers to substitute Al rather than Ni in Ni3Al phase within most......
MOCVD法制备HfO2薄膜前驱体的研究现状 陈加林1,常桥稳1,刘伟平1,张妮1,余尧1,叶青松1,谌喜珠1 (1.昆明贵金属研究所,昆明,650106) 摘要:HfO2薄膜是一种新兴的薄膜材料,在耐高温保护涂层,微电子,催化等领域有着非常重要的应用.HfO2薄膜优异的性能及广阔的应用前景已经引起人们极大的关注.介绍了MOCVD法制备HfO2薄膜前驱体的研究进展和现状,着重讨论了MOCVD工艺中各类前驱体的优缺点,概述了目前研究的热点和进一步研究的方向.最后得出结论:目前使用较多的β二酮类铪配合物自身存在许多不利于MOCVD工艺的缺点,因此混合配体的铪配合物成为进一步研究的焦点. 关键词:HfO2; 薄膜; 前驱体; MOCVD; hafnium dioxide; films; precursors; MOCVD; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 22(2012) 1760-1765 Solvent extraction of hafnium from thiocyanic acid medium in DIBK-TBP mixed system XU Zhi-gao1,2, WANG Li-jun2, WU Yan-ke2, CHI Ru-an1, ZHANG Li2..., General Research Institute for Nonferrous Metals, Beijing 100088, China Received 25 July 2011; accepted 13 January 2012 Abstract: A novel process for the separation of hafnium from thiocyanic acid medium......
Effect of ytterbium inclusion in hafnium oxide on the structural and electrical properties of the high-k gate dielectric陈帅1,刘正堂1,冯丽萍1,车兴森1,赵小如21. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University2. Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, School of Science, Northwestern......
Effect of ytterbium inclusion in hafnium oxide on the structural and electrical properties of the high-k gate dielectric陈帅1,刘正堂1,冯丽萍1,车兴森1,赵小如21. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University2. Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, School of Science, Northwestern......
and separation of zirconium and hafnium using mixtures of DIBK and TBP XU Zhi-gao1, 2, WANG Li-jun2, WU Yan-ke2, CHI Ru-an1, ZHANG Li2 (1. Key Laboratory for Green Chemical Process of Ministry of Education...: To master the chemical behavior of the extraction of hafnium from zirconium in the diisobutyl ketone (DIBK)-TBP system and to guide the practical application of the DIBK-TBP system, the mechanism......
Trans. Nonferrous Met. Soc. China 27(2017) 1896-1906 Corrosion behavior of hafnium in anhydrous isopropanol and acetonitrile solutions containing bromide ions Chang-hong WANG, Sheng-hai YANG, Yi YUAN...: The corrosion behaviors of hafnium in Et4NBr isopropanol and acetonitrile(ACN) solutions were investigated using electrochemical measurements, ICP-AES and SEM techniques. Results revealed that the open......
P. Some effects of hafnium additions on the mechanical properties of a columnar-grained nickel-based superalloy[J]. Journal of Metals, 1971, 23(7): 38-40. [2] KOTVAL P S, VENABLES J D, CALDER R W. The role of hafnium in modifying the microstructure of cast nickel-base superalloys[J]. Metallurgical Transactions, 1972, 3(2): 453-458. [3] 王罗宝, 陈荣章, 王玉屏. 定向工艺和铪含量对一种镍基高温合金的影响[J]. 航空材料, 1982, 2(2): 1-7......
reduction mechanism of hafnium ion(Ⅳ) was studied in NaCl–KCl–K2HfCl6 melts on a molybdenum electrode. The cyclic voltammetry study shows that Hf(Ⅳ) is reduced to hafnium metal in double two-electron... confirm the reduction mechanism of hafnium.关键词:......
of Chemical Technology and Engineering,West Pomeranian University of Technology in Szczecin摘 要:Europium doped hafnium dioxide nanoparticles were......
