title: The nanostructures of amorphous silicas.
abstract: Topologically modeled amorphized silica structures have been refined using a molecular dynamics simulation technique. Several metastable structures with substantially different medium-range connectivities, as characterized by primitive ring statistics, were obtained. Whereas the total correlation function is insensitive to these differences, the first step diffraction peak derived from energy-filtered electron diffraction shows a promising correlation to medium-range structure.
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA.
authors.forename: Linn W
authors.initials: LW
authors.lastname: Hobbs
authors.forename: Xianglong
authors.initials: X
authors.lastname: Yuan
authors.forename: L C
authors.initials: LC
authors.lastname: Qin
authors.forename: Vinay
authors.initials: V
authors.lastname: Pulim
authors.forename: Alexander
authors.initials: A
authors.lastname: Coventry
mesh_terms: D003460:Crystallization; D008854:Microscopy, Electron; D008958:Models, Molecular; D036103:Nanotechnology / Q000379:methods; D012822:Silicon Dioxide / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D012822:Silicon Dioxide