A simple method for the preparation of MgO crystals

In this post I show how to prepare easily and quickly a sample of powder of magnesium oxide nanocrystals. Magnesium is one of the most abundant elements in the human body, also finds many applications in catalysis and also is investigated as a fuel for CO2-free engines. Magnesium is highly flammable, especially when powdered or Read More …

“Quantum made simple” using video animations

I present here the webpage http://www.toutestquantique.fr/en/ The webpage is in english and french and contains videos to spread the message “Quantum Made Simple”. The videos are produced by the Physics Reimagined group (LPS, CNRS Universite Paris-Sud) with funding of Labex PALM. The goal is to explain topics related to quantum phenomena: the wave-particle duality,  photoemission,  Read More …

3D models using an SEM and free software

In this post I present some information about multi-view 3D SEM which is a technique used in scanning electron microscopy (SEM)  for recovering the three-dimensional shape and surface texture of a sample and with high-resolution. The methodoly is based on algorithms that have been developed for decades. It is gaining impulse thanks to the interest Read More …

Resources for sample preparation

  An image in TEM is as good as the sample Authors : Jeanne Ayache, Luc Beaunier, Jacqueline Boumendil, Gabrielle Ehret, Danièle Laub This two-volume Handbook is a comprehensive guide to sample preparation for the transmission electron microscope. Sample Preparation Handbook for Transmission Electron Microscopy: Techniques describes 14 different preparation techniques, including 22 detailed protocols Read More …

The electron, the atom, the DNA and the Old Cavendish

I present this post about the Cavendish Laboratory because it was there where JJ Thomson discovered the electron. Until 2008 approximately, the Old Cavendish housed the High-Resolution Electron Microscopy Group that is part of the Department of Material Science and Metallurgy of the University of Cambridge (United Kingdom). Was it not the best place to Read More …

Electron microscopy and Ptychography

  I have followed some of the research on phase retrieval methods of Prof. Rodenburg who works at the University of Sheffield. As he states in his webpage, he is … currently working on phase-retrieval methods, principally Ptychography at electron, visible light and X-ray wavelengths. I am currently seconded part-time to a spin-out company I helped found called Phase Focus Ltd. Read More …

Tin whiskers growth: An open problem for a material scientist

  Image of one long tin whisker acquired by Dimas J Morilla using an Scanning electron microscope at Alter Technology TÜV NORD S.A.U. – Sevilla, Spain. Alter is a company dedicated to increase the reliabiity of electronic components. I post here some information about the growth tin whiskers, an spontaneous phenomenon that occurs in the tin-finishes of Read More …