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Synchrotron based Transmission x-ray microscopy reveals smectite fine structure in an aqueous environment
Synchrotron Transmission x-ray microscopy reveals smectite fine structure aqueous environment
2012/3/30
The unusual behaviour of smectites, the ability to change volume when wetted (swelling) or dried (shrinking), make soil containing smectites very unstable and hazardous for the building industry due t...
A combined synchrotron powder diffraction and vibrational study of the thermal treatment of palygorskite-indigo to produce Maya blue
synchrotron powder diffraction palygorskite-indigo Maya blue
2011/11/11
The heating process (30-200 QC) of a palygorskite-indigo mixture has been monitored in situ and simultaneously by synchrotron powder diffraction and Raman spectroscopy. During this process, the dye an...
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of sepiolite and palygorskite
X-ray diffraction sepiolite palygorskite
2011/11/4
Real-time, temperature-resolved synchrotron powder X-ray diffraction data and Rietveld refinements provide unprecedented insights into mineral behaviors and mechanisms of crystal structure transformat...
Crystal structure refinement of a sepiolite/indigo Maya Blue pigment using molecular modelling and synchrotron diffraction
sepiolite indigo Maya Blue pigment molecular mechanics Rietveld method
2011/11/7
Maya Blue is an artificial pigment used in Pre-Columbian America, renowned for its chemical stability. The pigment can be considered a precursor of modern inclusion compounds as a hosting microporous ...
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of palygorskite
Palygorskite Rietveld synchrotron X-ray diffraction time-resolved
2011/11/7
Rietveld refinements using synchrotron powder X-ray diffraction data were used to study the crystal structure and dehydration behavior of pure monoclinic palygorskite samples from Korea and Alaska. Th...
Synchrotron and Simulations Techniques Applied to Problems in Materials Science: Catalysts and Azul Maya Pigments
XAFS WAXS SAXS XANES Catalysts Maya Blue
2011/11/10
Development of synchrotron techniques for the determination of the structure of disordered, amorphous and surface materials has exploded over the past twenty years due to the increasing availability o...
Refinement of the Kaolinite Structure from Single-Crystal Synchrotron Data
Crystal Structure Diffuse Scattering H-Positions Kaolinite Microcrystal Single Crystal Refinement Synchrotron Radiation
2011/12/7
Abstract: The crystal structure of single crystals of kaolinite from Keokuk, Iowa, was refined using data measured at the microfocus X-ray beamline at the ESRE Grenoble, France (λ = 0.6883, T = room t...
Burbankite, a (Sr,REE,Na,Ca)-carbonate in fluid inclusions from carbonatite-derived fluids: Identification and characterization using Laser Raman spectroscopy, SEM-EDX, and synchrotron micro-XRF analysis
Burbankite synchrotron micro-XRF analysisp SEM-EDX Laser Raman spectroscopy
2012/3/31
Burbankite, ideally (Na,Ca) (Sr,REE,Ba) (CO ) , is a rare REE carbonate mineral that until now
had been encountered only at a few localities including highly alkaline silicate rocks, carbonatites,
a...
High-pressure X-ray diffraction study on the structure of NaCl melt using synchrotron radiation
NaCl high-pressure X-ray synchrotron radiation
2012/3/30
MoltenNaClwasanalyzedbyhigh-pressureX-raydiffractionexperimentsusingsyn-
chrotronradiationupto5GPaand1600Calongthemeltingcurve.Theinterference
function Qi(Q)andthecorrelationfunction g(r)werederived...
57Fe nuclear forward scattering of synchrotron radiation in hedenbergite CaFeSi2O6 at hydrostatic pressures up to 68 GPa
nuclear forward scattering CaFeSi2O6 hydrostatic pressures 68 GPa
2012/3/31
The Fenuclearforwardscattering(NFS)ofsynchrotronradiationandtheuseofdia-
mondanvilswithheliumaspressuremediumallowedstudyoftheelectronicstateofFe
inthechainsilicatehedenbergiteCaFeSi O atpressuresup...
High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95,Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions
high-resolution synchrotron X-ray powder diffraction
2012/3/30
Thispaperpresentshigh-resolutionsynchrotronX-raypowderdiffractiondataat290K
ontwoFe-bearing,polycrystallinesilicateperovskitesampleswithapproximatecompo-
Fe )SiO synthesizedat25GPaand1920Kinamulti-a...
Dehydration dynamics of analcime by in situ synchrotron powder diffraction
Dehydration dynamics of analcime powder diffraction
2012/3/30
Thecontinuousstructuraltransformationoftetragonalanalcime(Na Al Si
15.87 15.20 32.64
O !/16.3 O)upondehydrationwasstudied,usingRietveldstructureanalysisoftemper-96 2
ature-resolvedpowderdiffraction...
Third-generation synchrotron x-ray diffraction of 6-mm crystal of raite, 'Na3Mn3Ti0.25Si8O20(OH)2z10H2O, opens up new chemistry and physics of low-temperature minerals
Third-generation synchrotron x-ray diffraction low-temperature minerals chemistry and physics
2011/11/11
The crystal structure of raite was solved and refined from data collected at Beamline Insertion Device 13 at the European Synchrotron Radiation Facility, using a 3 3 3 3 65 mm single crystal. The refi...
Dehydration dynamics of stilbite using synchrotron X-ray powder diffraction
Dehydration dynamics stilbite synchrotron X-ray powder diffraction
2012/4/5
Thecontinuousstructuraltransformationofthenaturalzeolitestilbite(NaK Ba Ca Sr Mg [Fe Al Si O ]!/60 O)upondehydrationhasbeen
3.62 0.44 0.03 6.32 0.28 0.04 17.33 54.64 144 2studiedusingRietveldstructur...
Mn crystal chemistry in pumpellyite: A resonant scattering powder diffraction Rietveld study using synchrotron radiation
Mn crystal chemistry pumpellyite scattering powder diffraction synchrotron radiation
2012/4/5
The present study attempts to clarify the structural role of Mnin two pumpellyite specimens with the chemical formulas Ca7.so(Als.91Mn1.85Mg1.16Feo.37)Sill.s40s6-xOHx and Cas.12(AI7.99Mn3.41Mgo.71Feo....