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Hybrid aerogels and bioactive aerogels under uniaxial compression: An in situ SAXS study

AuthorsMorales-Flórez, Víctor ; Rosa-Fox, Nicolás de la; Piñero, M.; Esquivias, L.
KeywordsHybrid aerogel
Uniaxial compression
Issue Date2010
PublisherCSIC - Centro Nacional de Investigaciones Metalúrgicas (CENIM)
CitationRevista de Metalurgia 46: 143- 148 (2010)
AbstractThe complex structure of hybrid organic/inorganic aerogels is composed by an inorganic phase covalently bonded to an organic chain forming a copolymer. Conventional hybrid aerogels were studied as well as bioactive hybrid aerogels, that is, aerogels with a calcium active phase added. In this work, the relationship between mechanical response and nanostructure was studied, using a specifically designed sample-holder for in situ uniaxial compression obtaining at the same time the small-angle X-ray pattern from synchrotron radiation (SAXS). Structural elements can be described as a particulated silica core surrounded by the organic chains. These chains are compressed on the direction parallel to the load, and a relationship between macroscopic uniaxial compression and particle and pore deformations can be established.
Identifiersdoi: 10.3989/revmetalmadrid.18XIIPMS
issn: 0034-8570
Appears in Collections:(ICMS) Artículos
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