%0 Journal Article
%A Suárez Barrios, Mercedes
%A García Romero, Emilia
%A Santiago Buey, Cristina de
%A Martín Pozas, José M.
%T Estudio por microscopía electrónica de transmisión de saponita activada.
%D 1999
%@ 0213-683X
%U https://hdl.handle.net/20.500.14352/57104
%X This work studies the modifications undergone by the Creen Clays Saponite in the Tagus Basin subjected toactivation treatments, and stresses the influence of the development of the electronic microscopy technique forstudying these materials. Acid treatment with HU and pillaring treatment with Al13 were performed.Characterization of the samples was carried out by DRX, chemical analysis of majar elements and TransmissionElectronic Microscopy. Acid treament causes the delaminarion and fragmentation of the particles, partiallydissolving the octahedral layer and generating amorphous silica, coming from the tetrahedral layer. Pillaringtreatment gives rise to a stable salid with interlayer spadng at 18A. The high number of crystalline defectspresent in the saponite conditions the formation of a low number of pillars per cell.
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