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Amorphization induced by pressure : results for zeolites and general implications
Peral Alonso, Inmaculada (Universitat Autònoma de Barcelona. Departament de Física)
Iñiguez González, Jorge (Institut de Ciència de Materials de Barcelona)
American Physical Society

Data: 2006
Resum: We report an ab initio study of pressure-induced amorphization (PIA) in zeolites, which are model systems for this phenomenon. We confirm the occurrence of recently reported low-density amorphous phases that preserve the crystalline topology, and explain the role of the zeolite composition regarding PIA. Our results support the correctness of existing models for the basic PIA mechanism, but suggest that energetic, rather than kinetic, factors determine the irreversibility of the transition.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: Article ; Versió publicada
Publicat a: Physical review letters, Vol. 97, Issue 22 (November 2006) , p. 225502, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.97.225502

4 p, 1.1 MB

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