Transmission Electron Microscope Observation of the Martensite in Kovar

Conventional Transmission Electron Microscope Observation of Electric and Magnetic Fields

High-resolution electron microscope observation of the non-basal planar defects in 18R martensite in a Cu-Zn-Al alloy

Martensite phases with the 9R or the 18R structure have been found in many â-phase Hume-Rothery alloys. In practice, the 18R (or 9R) stacking sequence is hardly ever perfect, and a high density of randomly distributed basal stacking faults are often observed [1±4]. Apart from the basal plane faults, the presence of other planar defects, such as Type I or Type II, has been reported [5±10]. Accor...

the role of russia in transmission of energy from central asia and caucuses to european union

پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...

Isotope analysis in the transmission electron microscope

The Ångström-sized probe of the scanning transmission electron microscope can visualize and collect spectra from single atoms. This can unambiguously resolve the chemical structure of materials, but not their isotopic composition. Here we differentiate between two isotopes of the same element by quantifying how likely the energetic imaging electrons are to eject atoms. First, we measure the dis...

Electron microscopy’s multi-tool: the Scanning Transmission Electron Microscope

A dedicated Scanning Transmission Electron Microscope is ideally coupled with the energy dispersive x-ray and electron energy loss spectroscopies to obtain information about the chemical composition, morphology and electronic structure on the nanoscale. With several signals being available simultaneously with the pass of a subnanometre-sized beam, this instrument can answer questions from a bro...