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Role of Bond Coordination and Molecular Volume on the Dielectric Constant of Mixed-Oxide Compounds.

作者:科技文献资料网 时间:2017-07-25 12:29:47  浏览:9710   来源:科技文献资料网
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[文献类型]:科技报告
[标题]:Role of Bond Coordination and Molecular Volume on the Dielectric Constant of Mixed-Oxide Compounds.
[作者]:H. A. Kurtz; R. A. Devine;
[机构]:MEMPHIS UNIV TN DEPT OF CHEMISTRY.
[关键词]:molecules,dielectric properties,oxides,density, volume, constants, clustering, atoms, stability,mixed oxides
[出版年份]:2007
[报告时间]:6 Aug 2001,
[页码]:4p
[馆藏索取号]:ADA466591
[总页数]:4


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[唯一标识符]:CDSITC.AEROSPACE.A03-19560
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:A2003-19560
[标题]:Growth rates and microstructures of reacted layers between molten Al-Fe alloy and SiO2
[作者]:Yoshikawa N; Hattori A; Taniguchi S
[来源]:Materials-Science-and-Engineering-A:-Structural-Materials;-Properties,-Microstructures-and-Processing. 2003 February; vol. 342, no. 1-2: 51-57
[文摘]:Fabrication of composite materials consisting of Al2O3 and Al-Fe alloy was attempted by means of an in-situ reaction between SiO2 and molten Al-Fe alloys. In this study, SiO2 rods were immersed into the molten alloy at various conditions. Growth rate of the reacted layer was measured and its microstructure was observed by using various techniques. The growth rate decreased as an increase of Fe content in the molten alloys, and microstructures of the reaction layer became fine, comparing with that of Al/Al2O3 (reaction product between pure Al and SiO2). Concentration gradients of Fe and Si existed in the reacted layer, namely, Si and Fe contents were higher at the reaction interface than in the edge. Si was segregated in the metal area having higher Fe content. Reasons for the decreases in growth rate were discussed considering the observed microstructures. Judging from the growth rate dependence on the Fe content, it is impossible to fabricate FeAl (intermetallic compound)/Al2O3 composite materials in-situ by simple immersion of SiO2 into the molten Al-Fe alloy. The alternative two-stage immersion process was proposed. (Author)
[关键词]:ALUMINUM ALLOYS; MICROSTRUCTURE ; SILICON DIOXIDE; BINARY ALLOYS; MICROSTRUCTURE ; FABRICATION ; COMPOSITE MATERIALS; MOLTEN METALS; IRON ALLOYS; SOLID SOLID INTERFACES
[出版年份]:2003
[专业领域]:Engineering, General
[唯一标识符]:CDSTIC.ISTP.1428005
[文献来源]:科学技术会议录索引(ISTP)
[文献类型]:科技会议
[标题]:Forward-Backward Building-Blocks for Evolving Neural Networks with Intrinsic Learning Behaviors
[作者]:SM Lucas
[出版单位]:Springer-Verlag BerlinBerlin
[ISSN_ISBN]:3-540-63047-3
[会议名称]:4th International Work-Conference on Artificial Neural Networks (IWANN 97),Lanzarote, Spain,June 4-6, 1997
[来源]:BIOLOGICAL AND ARTIFICIAL COMPUTATION: FROM NEUROSCIENCE TO TECHNOLOGY,pp 723-732
[系列名称]:LECTURE NOTES IN COMPUTER SCIENCE
[编辑者]:EJ Mira;R MorenoDiaz;J Cabestany
[主办单位]:Asociac Espanola Redes Neuroanles;IEEE Neural Networks Council;IEEE UK&RI Commun Chapter;IFIP Working Grp Neural Comp Syst;Spanish RIG AERN;Univ Nacl Educ Distancia;Univ Palmas Gran Canaria;Univ Politecn Catalunya
[地址]:SM Lucas,Univ_Essex, Dept Elect Syst Engn, Colchester CO4 3SQ, ESSEX, England
[专业领域]:Computer Science, Theory & Methods,Computer Science, Artificial Intelligence,Neurosciences,Computer Science, Interdisciplinary Applications,Multidisciplinary Sciences

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