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Effect of glass composition on the chemical durability of zinc phosphate-based glasses in aqueous solutions

hal.structure.identifierProcess Chemistry Centre
dc.contributor.authorMASSERA, Jonathan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOURHIS, Kevin
hal.structure.identifierSchool of Material Science and Engineering
dc.contributor.authorPETIT, Laëtitia
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCOUZI, Michel
hal.structure.identifierProcess Chemistry Centre
dc.contributor.authorHUPA, Leena
hal.structure.identifierProcess Chemistry Centre
dc.contributor.authorHUPA, Mikko
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVIDEAU, Jean-Jacques
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
dc.date.issued2013
dc.identifier.issn0022-3697
dc.description.abstractEnThe chemical durability of glasses with the composition 40P2O5-55ZnO-1Ga2O3-4Ag2O and 41P2O5-51ZnO-8Ga2O3 (mol%) was studied by measuring the rates of aqueous dissolution in neutral, acidic and alkaline aqueous solutions and discussed as a function of the glass composition. The change in the pH of the solutions as a function of the immersion time of the samples was used to study the dissolution mechanism. Using XRD and SEM/EDXA, we showed that the dissolution in deionized (DI) water and HCl consists of the leaching of the phosphate chains into the medium along with (i) the formation of a hydrated layer with the composition Zn2P2O7*3H2O and also of AgCl agglomerates when immersed in HCl and (ii) a leaching out of P, Ga and Ag when immersed for more than 180 min in DI water and for more than 60 min in HCl. The dissolution in NaOH-Na2CO3 consists of a net consumption of the OH− along with the formation of layers of Zn3(PO4)2*(H2O)4 and Zn(H2PO2)2*H2O with no apparent diffusion of P, Ga and Ag when immersed for as long as 240 min. Increasing the Ga2O3 concentration in zinc-phosphate glass at the expense of Ag2O lowers the dissolution rate when immersed in DI water, HCl and NaOH-Na2CO3 probably due to a reinforcement of the glass network.
dc.language.isoen
dc.publisherElsevier
dc.subject.enGlasses
dc.subject.enOptical materials
dc.subject.enElectron microscopy
dc.subject.enRaman spectroscopy
dc.subject.enX-ray diffraction
dc.title.enEffect of glass composition on the chemical durability of zinc phosphate-based glasses in aqueous solutions
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jpcs.2012.08.010
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physics and Chemistry of Solids
bordeaux.page121-127
bordeaux.volume74
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00763855
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00763855v1
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