A Subnanoscale Investigation of Sb Segregation at MnO/Ag Ceramic/Metal Interfaces
作者： Jason T. Sebastian , Albert Assaban , David N. Seidman , Bart J. Kooi , Jeff Th. M. De Hosson
关键词: Chemical engineering 、 Ceramic metal 、 Metal 、 Internal oxidation 、 Annealing (metallurgy) 、 Field ion microscope 、 Atom probe 、 Ceramic 、 Microscopy 、 Metallurgy 、 Materials science
摘要: We have studied Sb segregation at MnO/Ag(Sb) ceramic/metal heterophase interfaces employing three-dimensional atom-probe (3DAP) microscopy. Specimens are prepared by the internal oxidation of Ag(Mn) alloys, leading to formation nanometer-size MnO precipitates within a matrix. is introduced into internally oxidized specimens with vapor diffusion treatment. Appreciable observed only after subsequent anneal performed, and measured interfacial excess interfaces, ΓSbMnO/Ag, determined directly. The temporal evolution followed for different processing steps employed. It shown that concentration silver decreases from an initial value 45–50 at.% Ag less than 5 increasing annealing time temperatures. Thus form under paraequilibrium conditions inherit With aging orthoequilibrium prevail reject atoms they inherited
springer.com
narcis.nl参考文章(3)
William C Johnson, John McDonald Blakely, None, Interfacial segregation : papers presented at a seminar of the Materials Science Division of the American Society for Metals, October 22 and 23, 1977 American Society for Metals. ,(1979)
G. D. W. Smith, M. K. Miller, Atom Probe Microanalysis: Principles and Applications to Materials Problems ,(1989)
Herbert Wang, Gene Simmons, Single Crystal Elastic Constants and Calculated Aggregate Properties. A Handbook ,(1971)