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Ab-initio synthesis and TEM confirmation of antigorite in the system MgO-SiO2-H2O
Ab-initio synthesis TEM confirmation antigorite system MgO-SiO2-H2O
2012/4/5
Forthe?rsttime,chemicallypure,nearlysingle-phaseantigorite,Mg Si O (OH) ,wassynthesizeddirectlywithoutusingseeds.Startingmaterialwasastoichiometricmix-tureofpreviouslysynthesizedtalcandbrucite.Synthes...
Thermal Transformation of Antigorite as Studied by Electron-Optical Methods
Antigorite Asbestos Chrysotile Forsterite Lattice image Selected area electron diffraction Serpentine Topotactic structure
2012/2/7
The thermal transformation of a Brazilian antigorite heated dry from 600∑ to 1300∑C was studied by high resolution electron microscopy and selected area electron diffraction (SAD). Below 600∑C, the an...
A white clay from the Jatoba talc mine, Castro, Paraná, Brazil, is shown by chemical analysis, X-ray and electron diffraction, and by thermal analysis to be essentially pure antigorite in the strict s...