J. C. Hernandez

TL;DR: The basic principles of DART are described and it is shown that it can be applied successfully to three different types of samples, consisting of embedded ErSi(2) nanocrystals, a carbon nanotube grown from a catalyst particle and a single gold nanoparticle, respectively.

TL;DR: Living on the edge: Three-dimensional reconstructions from electron tomography data recorded from Au/Ce(0.50)Tb( 0.12)Zr (0.38)O(2-x) catalysts show that gold nanoparticles are preferentially located on stepped facets and nanocrystal boundaries.

TL;DR: In this paper, the relationship existing between aging conditions, redox behavior, and surface/bulk structural properties of two thermally aged ceria−zirconia mixed oxides, CZ-MO and cZ-SO, is analyzed.

TL;DR: In this article, high-resolution electron microscopy, high-angle annular dark field images, electron tomography data, and density functional theory calculations are presented that show the occurrence of significant structural and surface modifications in a nanocrystalline sample of cerium−zirconium mixed oxide upon high-temperature reduction with hydrogen followed by mild oxidation.

TL;DR: Analysis of γ′ and γ″ strengthening precipitates in a commercial nickel‐base superalloy Inconel 718 using TEM dark‐field, HRTEM, electron holography and electron tomography imaging showed thatγ″ particles exhibit a shape of thin plates, while γ– phase precipitates are almost spherical.