Recent TEM studies of precipitate growth mechanisms

Recent developments in Pseudomonas biocontrol mechanisms

Fluorescent pseudomonads are an effective source of biological control that have high adaptive power and able to produce a wonderful source of secondary metabolites. Antibiotics such as phenazines, diacetylphloroglucinol, and hydrogen cyanide are produced by certain taxonomic groups of the genus Pseudomonas and appear to be ancestral. These compounds often play a physiological role in the produ...

Recent TEM developments applied to quantum structures

To shed light on these confined properties, a technique with a high energy-and-spatial resolution is of absolute need. Modern transmission electron microscopy (TEM) is the most suitable technique for a direct measurement of optical and structural properties at a nanometer scale. Thanks to the successful construction of aberration corrected transmission electron microscopes, the mapping of atomi...

Titanium-Rich Precipitate Evolution in Vanadium-based Alloys Studied by TEM and Positron Annihilation Spectroscopy

Direct TEM observations of growth mechanisms of two-dimensional MoS2 flakes

A microscopic understanding of the growth mechanism of two-dimensional materials is of particular importance for controllable synthesis of functional nanostructures. Because of the lack of direct and insightful observations, how to control the orientation and the size of two-dimensional material grains is still under debate. Here we discern distinct formation stages for MoS2 flakes from the the...

Recent Development in Tem Characterization of Irradiated Rertr Fuels

The recent development on TEM work of irradiated RERTR fuels includes characterization of the irradiated U-10Mo/Alloy-6061 monolithic fuel plate, the RERTR7 U-7Mo/Al-2Si and U-7Mo/Al-5Si dispersion fuel plates. It is the first time that a TEM sample of an irradiated nuclear fuel was prepared using the focused-ion-beam (FIB) liftout technical at the Idaho National Laboratory. Multiple FIB TEM sa...