6533b7d8fe1ef96bd1269b22

RESEARCH PRODUCT

X-ray diffraction line broadening on vibrating dry-milled Two Crows sepiolite

Pedro AmorósJoaquín BastidaPablo PardoMarek Andrzej Kojdecki

subject

DiffractionScanning electron microscopeCrystalline Lattice StrainSepioliteAnalytical chemistrySoil ScienceMineralogyLathengineering.materialchemistry.chemical_compoundReference ClayGeochemistry and PetrologyNevada SepioliteEarth and Planetary Sciences (miscellaneous)Crystallite SizeWater Science and TechnologySepioliteX-ray DiffractionLine BroadeningSurface AreaSilicatechemistryX-ray crystallographyengineeringCrystalliteComminutionGeology

description

A reference sample of sepiolite and products of its comminution by vibrating dry-milling have been studied using X-ray diffraction (XRD) line-broadening analysis, complementary field emission scanning electron microscopy (FESEM) images and surface area measurements. The apparent crystallite sizes determined via XRD are in agreement with observations on FESEM images. The sepiolite aggregates consist of lath-shaped agglutinations of prisms and pinacoids elongated along [001], each lath including several crystallites in that direction. The surface area magnitudes are in the range of previous experimental measurements of other sepiolites. The results obtained show the effectiveness of vibro-milling as the procedure to use for the comminution of sepiolite.

https://doi.org/10.1346/ccmn.2006.0540310