منابع مشابه
MgSO4•11H2O – POWDER XRD, RAMAN AND VIS-NIR SPECTROSCOPIC CHARACTERIZATION
Why MgSO4·11H2O? Hydrous Mg-sulfate with 11 structural waters (11w hydrate), a new low temperature hydrated Mg-sulfate phase, was first reported in 2006 by Peterson & Wang [1]. They did a structural refinement using single-crystal XRD and suggested that the crystal molds in outcrops at Meridiani [2] could indicate melting and loss of the 11w hydrate. Chou et al. [3] proposed a phase boundary be...
متن کاملEvaluation of Xrd and Raman Peak Broadening in Shock-metamorphosed Carbonates from Carbonate-target Bolide Impact Structures
Introduction: Peak broadening recognized in X-ray diffraction (XRD) and micro-Raman (MRS) spectra of experimentally and naturally shock-metamorphosed carbonates from carbonate-target bo-lide impact structures has been shown to be a reliable indicator of impact-related shock-metamorphism [1-7]. However, studies have not yet shown whether this peak broadening is unique to or diagnostic of all car...
متن کاملXAS, XRD, AFM and Raman studies of nickel tungstate electrochromic thin films
Systematic studies of nanocrystalline nickel tungstate, NiWO4, thin films were performed by several experimental techniques such as Ni Kand W L1,3-edges X-ray absorption spectroscopy, X-ray diffraction, Raman spectroscopy, atomic force microscopy and cyclic voltammetry measurements. We found that the NiWO4 thin films exhibit electrochromic properties similar to that of amorphous tungsten trioxi...
متن کاملCombined synchrotron XRD/Raman measurements: in situ identification of polymorphic transitions during crystallization processes.
A combination of two analytical methods, time-resolved X-ray diffraction (XRD) and Raman spectroscopy, is presented as a novel tool for crystallization studies. An acoustic levitator was employed as sample environment. This setup enables the acquisition of XRD and Raman data in situ simultaneously within a 20 s period and hence permits investigation of polymorphic phase transitions during the c...
متن کاملRaman and Xrd Field Characterisation of Sulfate Efflorescences at Rio Tinto
Introduction: The Río Tinto mining district can be considered as the largest volcanogenic massive sulphide district worldwide and probably one of the oldest in the human history being in continuous operation from the Bronze Age to the XX. An important characteristic of the Rio Tinto system is derived from the interaction between the river waters and the iron-rich sulphide minerals. This interac...
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ژورنال
عنوان ژورنال: Journal of Polytechnic
سال: 2019
ISSN: 1302-0900
DOI: 10.2339/politeknik.537733