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2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms / Cedric J. Gommes in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 770-780 Titre : 2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms : a three-dimensional structural analysis of ordered mesoporous silica Type de document : texte imprimé Auteurs : Cedric J. Gommes, Auteur ; Heiner Friedrich, Auteur ; Petra E. de Jongh, Auteur Article en page(s) : pp. 770-780 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : 2-Point  correlation  Nanostructure  Porous  material  Image  analysis  Transmission  electron  microscopy Index. décimale : 669 Métallurgie Résumé : Electron tomography is a unique technique for imaging the microstructure of materials with a nanometer resolution. The signal-to-noise ratio of electron tomograms is, however, often too low for a reliable segmentation-based image analysis. We derive a general relation between the grey-tone correlation function of the tomograms and the 2-point correlation function of the morphology, which enables us to analyse quantitatively the grey-tone correlation function with a morphological model of the material. The methodology is applied to SBA-15 ordered mesoporous silica. The three-dimensional grey-tone correlation function obtained from electron tomography is analysed in terms of a hexagonal array of Gaussian independent pores. The model enables us to relate the morphology obtained from the 2-point correlation function to macroscopic characterization data of the material, notably small-angle X-ray scattering and nitrogen adsorption. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...] [article] 2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms : a three-dimensional structural analysis of ordered mesoporous silica [texte imprimé] / Cedric J. Gommes, Auteur ; Heiner Friedrich, Auteur ; Petra E. de Jongh, Auteur . - pp. 770-780. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 770-780 Mots-clés : 2-Point  correlation  Nanostructure  Porous  material  Image  analysis  Transmission  electron  microscopy Index. décimale : 669 Métallurgie Résumé : Electron tomography is a unique technique for imaging the microstructure of materials with a nanometer resolution. The signal-to-noise ratio of electron tomograms is, however, often too low for a reliable segmentation-based image analysis. We derive a general relation between the grey-tone correlation function of the tomograms and the 2-point correlation function of the morphology, which enables us to analyse quantitatively the grey-tone correlation function with a morphological model of the material. The methodology is applied to SBA-15 ordered mesoporous silica. The three-dimensional grey-tone correlation function obtained from electron tomography is analysed in terms of a hexagonal array of Gaussian independent pores. The model enables us to relate the morphology obtained from the 2-point correlation function to macroscopic characterization data of the material, notably small-angle X-ray scattering and nitrogen adsorption. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...]

2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms / Cedric J. Gommes in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 770–780 Titre : 2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms : A three-dimensional structural analysis of ordered mesoporous silica Type de document : texte imprimé Auteurs : Cedric J. Gommes, Auteur ; Heiner Friedrich, Auteur ; Petra E. de Jongh, Auteur Année de publication : 2011 Article en page(s) : pp. 770–780 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : 2-Point  correlation  Nanostructure  Porous  material  Image  analysis  Transmission  electron  microscopy Résumé : Electron tomography is a unique technique for imaging the microstructure of materials with a nanometer resolution. The signal-to-noise ratio of electron tomograms is, however, often too low for a reliable segmentation-based image analysis. We derive a general relation between the grey-tone correlation function of the tomograms and the 2-point correlation function of the morphology, which enables us to analyse quantitatively the grey-tone correlation function with a morphological model of the material. The methodology is applied to SBA-15 ordered mesoporous silica. The three-dimensional grey-tone correlation function obtained from electron tomography is analysed in terms of a hexagonal array of Gaussian independent pores. The model enables us to relate the morphology obtained from the 2-point correlation function to macroscopic characterization data of the material, notably small-angle X-ray scattering and nitrogen adsorption. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006612 [article] 2-Point correlation function of nanostructured materials via the grey-tone correlation function of electron tomograms : A three-dimensional structural analysis of ordered mesoporous silica [texte imprimé] / Cedric J. Gommes, Auteur ; Heiner Friedrich, Auteur ; Petra E. de Jongh, Auteur . - 2011 . - pp. 770–780. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 770–780 Mots-clés : 2-Point  correlation  Nanostructure  Porous  material  Image  analysis  Transmission  electron  microscopy Résumé : Electron tomography is a unique technique for imaging the microstructure of materials with a nanometer resolution. The signal-to-noise ratio of electron tomograms is, however, often too low for a reliable segmentation-based image analysis. We derive a general relation between the grey-tone correlation function of the tomograms and the 2-point correlation function of the morphology, which enables us to analyse quantitatively the grey-tone correlation function with a morphological model of the material. The methodology is applied to SBA-15 ordered mesoporous silica. The three-dimensional grey-tone correlation function obtained from electron tomography is analysed in terms of a hexagonal array of Gaussian independent pores. The model enables us to relate the morphology obtained from the 2-point correlation function to macroscopic characterization data of the material, notably small-angle X-ray scattering and nitrogen adsorption. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409006612