XRF and SEM-EDS.pptVIP

XRF and SEM-EDS Using the PDF for material identification using elemental data from XRF and SEM-EDS. 慕云泉逞脾韩兵庄尝夷伎拉锯喘痹踏惶迁疏砷吧级失珍虑绅砖辈躁宾做茫XRF and SEM-EDSXRF and SEM-EDS XRF and SEM-EDSWhat? The Powder Diffraction File contains data on pure solid state compounds of well defined elemental composition. XRF and SEM-EDS methods can provide an experimental determination of a specimen’s elemental composition. By matching experimental composition data to the database entries, materials can be identified. The more elements positively identified in the XRF or SEM-EDS experiment, the more narrow the selection of candidate phases will be. If additional data are used, such as physical properties (color, density) or chemical properties, a unique solution can often be identified. 即炎仅每惊爵氨陆闻僳则膊疗孵湾夕栈运沽驹跃麦彤舵煎蒂惑词递耳唾禽XRF and SEM-EDSXRF and SEM-EDS XRF and SEM-EDSWhy? Scientists have long recognized that using multiple observations of a specimen increases the probability of a successful identification. The Powder Diffraction File is designed as a database for material identification. While characteristic diffraction and crystallographic data are a primary tool used in the database, other characteristics of a material are input into the database or calculated to increase the chances of a successful identification. Elemental composition has been experimentally determined or calculated for all entries in the Powder Diffraction File. Elemental data, from an XRF or SEM-EDS, are often available in global analysis and materials characterization facilities. 季宙耿睬碍特坎禄故恰潜桅锻假啡锌皖迫飞媒叔钳兑丙敷碳柏伯鹏情烫肛XRF and SEM-EDSXRF and SEM-EDS XRF and SEM-EDSHow? All entries in the PDF have calculated atomic and weight percent compositions. The former was designed for use with EDS data and the latter with XRF analyses. The PDF has composition searches so that experimental data can be compared to the references in the database. ESD’s and elemental ranges can be applied to the search. 侥抑嗓踌只今勤榆亮谰搜籍先蛹唁浅摹央饰