Metrics for Characterization of Atom Probe Instrument Performance
نویسندگان
چکیده
منابع مشابه
Characterization of Precipitates with the Atom Probe
The parameters that can be measured from atom probe random area analyses of small spherical precipitates and platelets have been examined with a combination of simulation and geometrical models. The results indicate that the probe aperture should be less than 50% of the diameter of the precipitate in order to reliable measure the true composition in a significant proportion of precipiates.
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An atom probe field ion microscopy survey of several bulk metallic glasses including the zirconium-based glasses Z r 1 i 3 4 6 2 s s , 7 5 7 , 5 1 0 2 7 . 5 4 . ~ . ~ . ~ ~ ~ . Z ~ , ~ N ~ , A ~ ~ O C U ~ , ~ N ~ I Z , ~ , and Zr ,,,, T ~ , A ~ , , C U ~ ~ , , N ~ , ~ , ~ , together with two non-zirconium-based glasses Ti3,Zr,,Cu4,NiS, and Mg,,Cu,,Y,,, is presented. Non random distribution of s...
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چکیده هدف اصلی از طراحی لرزه ای تامین ایمنی جانی در هنگام وقوع زلزله و تعمیر پذیر بودن سازه خسارت دیده، پس از وقوع زلزله است. تجربه زلزله های اخیر نشان داده است که ساختمان های طراحی شده با آیین نامه های مبتنی بر نیرو از نظر محدود نمودن خسارت وارده بر سازه دقت لازم را ندارند. این امر سبب پیدایش نسل جدید آیین نامه های مبتنی بر عملکرد شده است. در این آیین نامه ها بر اساس تغییرشکل های غیرارتجاعی ...
15 صفحه اولAtom-probe Analysis of Zircaloy
Zirconium based alloys in the Zircaloy series have been analysed with atom-probe field-ion microscopy. During specimen preparation an anodic layer is formed, containing about 50% oxygen. In preliminary analyses of the matrix al1 the minor elements Fe, Ni, Cr and O were detected, and it appears possible to determine with the atom-probe whether any particular heat treatment causes matrix depletio...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2011
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927611004405