Leica Science Lab - Tag : Carbon Coating https://www.leica-microsystems.com//science-lab/tag/tags/carbon-coating/show/Tag/ Article tagged with Carbon Coating en-US https://www.leica-microsystems.com/20352 EM Sample Preparation Macroscale to Nanoscale Pore Analysis of Shale and Carbonate Rocks Physical porosity in rocks, like shale and carbonate, has a large effect on the their storage capacity. The pore geometries also affect their permeability. Imaging the visible pore space provides insights into the physical pore space, pore geometries, and the associated mineral and organic matter phases relevant for storage and transport. For example, organic-matter porosity is an important property of mature organic-rich shales providing storage capacity for liquids and gases, like hydrocarbons. Imaging the microstructure is the only technique which delivers data giving direct insight into the organic matter porosity. However, imaging porosity in fine-grained shale as well as carbonate rocks in a representative way at high resolution is challenging. https://www.leica-microsystems.com//science-lab/macroscale-to-nanoscale-pore-analysis-of-shale-and-carbonate-rocks/ Tue, 04 Sep 2018 22:00:00 +0000 PhD Jop Klaver, PhD Joyce Schmatz, MSc Mingze Jiang, PhD James DeRose https://www.leica-microsystems.com/19003 EM Sample Preparation Carbon Coating for Polymeric Materials Application Note fo Leica EM ACE600 - A solid understanding of polymer property-structure relationships is critical to improve and shorten development routes to new products. A direct way to determine correlations between structure and mechanical properties is provided by electron microscopy. Electron microscopy techniques have an important advantage over other methods, as they can provide local information at high spatial resolution. However, a major problem with polymers is their inherent lack of contrast. https://www.leica-microsystems.com//science-lab/carbon-coating-for-polymeric-materials/ Mon, 05 Dec 2016 09:22:00 +0000 PhD Frédéric Leroux https://www.leica-microsystems.com/18983 EM Sample Preparation High-Resolution Carbon Coating: How much Carbon is too much? Application Note for Leica EM ACE600 - Carbon support films are routinely used for high resolution TEM. Thickness is one of the main criteria to assess its usefulness for a particular experiment. Within that respect graphene (oxide) layers are frequently used. However, charge dissipation and mechanical stability towards high probe currents and high voltages, including long term acquisition protocols are equally important. https://www.leica-microsystems.com//science-lab/high-resolution-carbon-coating-how-much-carbon-is-too-much/ Wed, 23 Nov 2016 11:56:00 +0000 PhD Frédéric Leroux https://www.leica-microsystems.com/18976 EM Sample Preparation Each Atom Counts: Protect Your Samples Prior to FIB Processing Application Note for Leica EM ACE600 - Focused ion beam (FIB) technology has become an indispensable tool for site-specific TEM sample preparation. It allows to extract electron transparent specimens with nanometer precision using a focused Ga+ ion beam. https://www.leica-microsystems.com//science-lab/each-atom-counts-protect-your-samples-prior-to-fib-processing/ Wed, 23 Nov 2016 11:43:00 +0000 PhD Frédéric Leroux https://www.leica-microsystems.com/18818 EM Sample Preparation Ultra-thin Carbon Support Films for Improved STEM-EELS Analysis of Nanoparticles Application Note for Leica EM ACE600 - Recent developments in aberration corrected transmission electron microscopes as well as further improvements in monochromaters and spectrometers have pushed the attainable energy resolution for Electron energy loss spectroscopy (EELS) to 100 meV and beyond. STEM-EELS of individual nanomaterials can be challenging due the necessity of a support film. https://www.leica-microsystems.com//science-lab/ultra-thin-carbon-support-films-for-improved-stem-eels-analysis-of-nanoparticles/ Wed, 21 Sep 2016 11:27:00 +0000 PhD Frédéric Leroux https://www.leica-microsystems.com/18820 EM Sample Preparation Ways to Reveal More from your Samples: Ultra-Thin Carbon Films Application Note for Leica EM ACE600 - Much of the battle involved in obtaining good transmission electron microscopy data is in the specimen preparation itself. Even though some nanomaterials are already electron transparent (e.g. nanoparticles and proteins) and often do not require further thinning procedures, they need to be dispersed onto thin support films. https://www.leica-microsystems.com//science-lab/ways-to-reveal-more-from-your-samples-ultra-thin-carbon-films/ Wed, 21 Sep 2016 11:23:00 +0000 PhD Frédéric Leroux, Jan de Weert https://www.leica-microsystems.com/10222 EM Sample Preparation Brief Introduction to Coating Technology for Electron Microscopy Coating of samples is required in the field of electron microscopy to enable or improve the imaging of samples. Creating a conductive layer of metal on the sample inhibits charging, reduces thermal damage and improves the secondary electron signal required for topographic examination in the SEM. https://www.leica-microsystems.com//science-lab/brief-introduction-to-coating-technology-for-electron-microscopy/ Wed, 28 Aug 2013 12:10:00 +0000 Gisela Höflinger https://www.leica-microsystems.com/10068 EM Sample Preparation Carbon Thickness Evaluation in Electron Microscopy The coating layers applied and used for electron microscopy imaging are commonly controlled and measured by quartz crystals. These crystals oscillate with a certain frequency (around 6 megahertz when new). By measuring the frequency before coating and after coating, the specific weight of the coating material and the geometric position of the quartz, the applied thickness can be calculated. https://www.leica-microsystems.com//science-lab/carbon-thickness-evaluation-in-electron-microscopy/ Thu, 11 Jul 2013 09:10:00 +0000 Gisela Höflinger