Matches in SemOpenAlex for { <https://semopenalex.org/work/W215409056> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W215409056 startingPage "8340" @default.
- W215409056 abstract "Silicate glass leaching in a unrenewed aqueous solution leads to gel formation at the glass water interface. This amorphous hydrated layer sometimes behaves like a diffusion barrier: the glass alteration rate decreases according to an inverse square root of time equation. In the case of Mg-containing glasses, the alteration rate usually remains quasi constant and seems to be controlled by the growth of secondary crystallized phases. These phases consume elements from solution. They can sustain gel dissolution inducing a decrease of its passivating properties. Long-term behaviour modelling of Mg-containing glasses designed for the confinement of fission products (AVM glasses, Atelier de vitrification de Marcoule, France) first requires a precise identification of these Mg-rich phases. Experimental investigations were performed on several glass samples using X-ray diffraction (XRD), 27Al and 29Si MAS NMR and elemental chemical analysis. Aluminous hectorite Na0.45(Mg2.28Li0.11Al0.39Fe0.06M0.16)(Si3.21Al0.79)O10(OH)2, with M being a divalent cation, was identified. 25 glasses were required for a full representation in term variations of AVM glasses composition range. Their residual alteration rates were proved to significantly depend on glass composition since a one order of magnitude difference was measured between the less and the most altered glasses. Nevertheless, the same crystallized phase was evidenced whatever the glass composition and whatever the initial composition of the solution (pure water or Mg-rich groundwater). Only a shift of the (060) peak between 1.521 and 1.530 A was evidenced. It can be attributed to slight composition variations. Relations between the glass magnesium fraction, the amount of precipitated hectorite, the residual rate, and the measured pH are not obvious. However, hectorite precipitation was proved to depend on pH, being favoured between pH50°C 9 and 9.5. Moreover, the higher the amount of precipitated hectorite, the lower the solution pH. Self regulation of hectorite precipitation evidences that all mechanisms involved are strongly interdependent." @default.
- W215409056 created "2016-06-24" @default.
- W215409056 creator A5016598150 @default.
- W215409056 creator A5029187631 @default.
- W215409056 creator A5055331185 @default.
- W215409056 creator A5071471998 @default.
- W215409056 creator A5072161071 @default.
- W215409056 date "2010-05-01" @default.
- W215409056 modified "2023-09-28" @default.
- W215409056 title "Identification of a Secondary Crystallized Phase formed during Nuclear Glasses Leaching - Effect of the Leached Glass Composition" @default.
- W215409056 hasPublicationYear "2010" @default.
- W215409056 type Work @default.
- W215409056 sameAs 215409056 @default.
- W215409056 citedByCount "0" @default.
- W215409056 crossrefType "journal-article" @default.
- W215409056 hasAuthorship W215409056A5016598150 @default.
- W215409056 hasAuthorship W215409056A5029187631 @default.
- W215409056 hasAuthorship W215409056A5055331185 @default.
- W215409056 hasAuthorship W215409056A5071471998 @default.
- W215409056 hasAuthorship W215409056A5072161071 @default.
- W215409056 hasConcept C113196181 @default.
- W215409056 hasConcept C127313418 @default.
- W215409056 hasConcept C147789679 @default.
- W215409056 hasConcept C149849071 @default.
- W215409056 hasConcept C159390177 @default.
- W215409056 hasConcept C159750122 @default.
- W215409056 hasConcept C16685009 @default.
- W215409056 hasConcept C178790620 @default.
- W215409056 hasConcept C184651966 @default.
- W215409056 hasConcept C185592680 @default.
- W215409056 hasConcept C192562407 @default.
- W215409056 hasConcept C199289684 @default.
- W215409056 hasConcept C2777335606 @default.
- W215409056 hasConcept C2778022349 @default.
- W215409056 hasConcept C43617362 @default.
- W215409056 hasConcept C44280652 @default.
- W215409056 hasConcept C56052488 @default.
- W215409056 hasConcept C71924100 @default.
- W215409056 hasConcept C8010536 @default.
- W215409056 hasConcept C88380143 @default.
- W215409056 hasConcept C90982505 @default.
- W215409056 hasConceptScore W215409056C113196181 @default.
- W215409056 hasConceptScore W215409056C127313418 @default.
- W215409056 hasConceptScore W215409056C147789679 @default.
- W215409056 hasConceptScore W215409056C149849071 @default.
- W215409056 hasConceptScore W215409056C159390177 @default.
- W215409056 hasConceptScore W215409056C159750122 @default.
- W215409056 hasConceptScore W215409056C16685009 @default.
- W215409056 hasConceptScore W215409056C178790620 @default.
- W215409056 hasConceptScore W215409056C184651966 @default.
- W215409056 hasConceptScore W215409056C185592680 @default.
- W215409056 hasConceptScore W215409056C192562407 @default.
- W215409056 hasConceptScore W215409056C199289684 @default.
- W215409056 hasConceptScore W215409056C2777335606 @default.
- W215409056 hasConceptScore W215409056C2778022349 @default.
- W215409056 hasConceptScore W215409056C43617362 @default.
- W215409056 hasConceptScore W215409056C44280652 @default.
- W215409056 hasConceptScore W215409056C56052488 @default.
- W215409056 hasConceptScore W215409056C71924100 @default.
- W215409056 hasConceptScore W215409056C8010536 @default.
- W215409056 hasConceptScore W215409056C88380143 @default.
- W215409056 hasConceptScore W215409056C90982505 @default.
- W215409056 hasLocation W2154090561 @default.
- W215409056 hasOpenAccess W215409056 @default.
- W215409056 hasPrimaryLocation W2154090561 @default.
- W215409056 hasRelatedWork W1528548227 @default.
- W215409056 hasRelatedWork W1978406789 @default.
- W215409056 hasRelatedWork W1978704621 @default.
- W215409056 hasRelatedWork W1979417382 @default.
- W215409056 hasRelatedWork W2001582274 @default.
- W215409056 hasRelatedWork W2007792187 @default.
- W215409056 hasRelatedWork W2070695667 @default.
- W215409056 hasRelatedWork W2074509464 @default.
- W215409056 hasRelatedWork W2114752240 @default.
- W215409056 hasRelatedWork W2281349150 @default.
- W215409056 hasRelatedWork W2307736116 @default.
- W215409056 hasRelatedWork W2340127039 @default.
- W215409056 hasRelatedWork W2469465176 @default.
- W215409056 hasRelatedWork W2613923036 @default.
- W215409056 hasRelatedWork W2799898205 @default.
- W215409056 hasRelatedWork W2805792229 @default.
- W215409056 hasRelatedWork W3002497764 @default.
- W215409056 hasRelatedWork W3003835532 @default.
- W215409056 hasRelatedWork W3134979980 @default.
- W215409056 hasRelatedWork W2519248479 @default.
- W215409056 isParatext "false" @default.
- W215409056 isRetracted "false" @default.
- W215409056 magId "215409056" @default.
- W215409056 workType "article" @default.