Matches in SemOpenAlex for { <https://semopenalex.org/work/W2019958578> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2019958578 endingPage "79" @default.
- W2019958578 startingPage "73" @default.
- W2019958578 abstract "The structural evolution of aerogels prepared from TEOS sono-hydrolysis was studied as a function of the temperature of heat treatment up to 1100 °C by means of small angle X-ray scattering (SAXS) and density measurements. The mass fractal structure of the original wet sonogel (with scattering exponent α∼2.2) apparently transforms to a surface fractal structure in a length scale lesser than ∼1.5 nm, upon the process resulting in aerogel. Such a structural transformation is interpreted by the formation of new particles with characteristic dimension of ∼1.5 nm, with rough boundaries or electronic density fluctuations (or ultra-micropores) in their interior. The structural arrangement of these particles seem to preserve part of mass fractal characteristics of the original wet sonogel, now in a length scale greater than ∼1.5 nm. The electronic density heterogeneities in the particles start to be eliminated at around 800 °C and, at 900 °C, the particles become perfectly homogeneous, so the structure can be described as a porous structure with a porosity of ∼68% with ∼9.0 nm mean size pores and ∼4.3 nm mean size solid particles. Above 900 °C, a vigorous viscous flux sintering process sets in, eliminating most of the porosity and increasing rapidly the bulk density in an aerogel–glass transformation." @default.
- W2019958578 created "2016-06-24" @default.
- W2019958578 creator A5034697148 @default.
- W2019958578 creator A5077544941 @default.
- W2019958578 creator A5087040221 @default.
- W2019958578 creator A5039921477 @default.
- W2019958578 date "2003-12-01" @default.
- W2019958578 modified "2023-10-06" @default.
- W2019958578 title "Structural evolution of aerogels prepared from TEOS sono-hydrolysis upon heat treatment up to 1100 °C" @default.
- W2019958578 cites W1494869688 @default.
- W2019958578 cites W1968243670 @default.
- W2019958578 cites W1990169371 @default.
- W2019958578 cites W1993002678 @default.
- W2019958578 cites W2005342489 @default.
- W2019958578 cites W2021664117 @default.
- W2019958578 cites W2024529422 @default.
- W2019958578 cites W2038562112 @default.
- W2019958578 cites W2043023833 @default.
- W2019958578 cites W2060077720 @default.
- W2019958578 cites W2065994152 @default.
- W2019958578 cites W2083735851 @default.
- W2019958578 cites W2093988152 @default.
- W2019958578 cites W2135177128 @default.
- W2019958578 cites W2139938322 @default.
- W2019958578 cites W2316970877 @default.
- W2019958578 doi "https://doi.org/10.1016/j.jnoncrysol.2003.09.003" @default.
- W2019958578 hasPublicationYear "2003" @default.
- W2019958578 type Work @default.
- W2019958578 sameAs 2019958578 @default.
- W2019958578 citedByCount "20" @default.
- W2019958578 countsByYear W20199585782014 @default.
- W2019958578 countsByYear W20199585782015 @default.
- W2019958578 countsByYear W20199585782016 @default.
- W2019958578 countsByYear W20199585782017 @default.
- W2019958578 countsByYear W20199585782018 @default.
- W2019958578 countsByYear W20199585782019 @default.
- W2019958578 crossrefType "journal-article" @default.
- W2019958578 hasAuthorship W2019958578A5034697148 @default.
- W2019958578 hasAuthorship W2019958578A5039921477 @default.
- W2019958578 hasAuthorship W2019958578A5077544941 @default.
- W2019958578 hasAuthorship W2019958578A5087040221 @default.
- W2019958578 hasConcept C120665830 @default.
- W2019958578 hasConcept C121332964 @default.
- W2019958578 hasConcept C131888329 @default.
- W2019958578 hasConcept C134306372 @default.
- W2019958578 hasConcept C159467904 @default.
- W2019958578 hasConcept C159985019 @default.
- W2019958578 hasConcept C185592680 @default.
- W2019958578 hasConcept C191486275 @default.
- W2019958578 hasConcept C192562407 @default.
- W2019958578 hasConcept C199289684 @default.
- W2019958578 hasConcept C26546657 @default.
- W2019958578 hasConcept C2777581544 @default.
- W2019958578 hasConcept C2780012831 @default.
- W2019958578 hasConcept C33923547 @default.
- W2019958578 hasConcept C40636538 @default.
- W2019958578 hasConcept C6648577 @default.
- W2019958578 hasConceptScore W2019958578C120665830 @default.
- W2019958578 hasConceptScore W2019958578C121332964 @default.
- W2019958578 hasConceptScore W2019958578C131888329 @default.
- W2019958578 hasConceptScore W2019958578C134306372 @default.
- W2019958578 hasConceptScore W2019958578C159467904 @default.
- W2019958578 hasConceptScore W2019958578C159985019 @default.
- W2019958578 hasConceptScore W2019958578C185592680 @default.
- W2019958578 hasConceptScore W2019958578C191486275 @default.
- W2019958578 hasConceptScore W2019958578C192562407 @default.
- W2019958578 hasConceptScore W2019958578C199289684 @default.
- W2019958578 hasConceptScore W2019958578C26546657 @default.
- W2019958578 hasConceptScore W2019958578C2777581544 @default.
- W2019958578 hasConceptScore W2019958578C2780012831 @default.
- W2019958578 hasConceptScore W2019958578C33923547 @default.
- W2019958578 hasConceptScore W2019958578C40636538 @default.
- W2019958578 hasConceptScore W2019958578C6648577 @default.
- W2019958578 hasIssue "1-3" @default.
- W2019958578 hasLocation W20199585781 @default.
- W2019958578 hasOpenAccess W2019958578 @default.
- W2019958578 hasPrimaryLocation W20199585781 @default.
- W2019958578 hasRelatedWork W1989298079 @default.
- W2019958578 hasRelatedWork W2010802765 @default.
- W2019958578 hasRelatedWork W2015612947 @default.
- W2019958578 hasRelatedWork W2039353029 @default.
- W2019958578 hasRelatedWork W2085037210 @default.
- W2019958578 hasRelatedWork W2321852870 @default.
- W2019958578 hasRelatedWork W2349597661 @default.
- W2019958578 hasRelatedWork W2358540181 @default.
- W2019958578 hasRelatedWork W2515536592 @default.
- W2019958578 hasRelatedWork W3195009880 @default.
- W2019958578 hasVolume "332" @default.
- W2019958578 isParatext "false" @default.
- W2019958578 isRetracted "false" @default.
- W2019958578 magId "2019958578" @default.
- W2019958578 workType "article" @default.