Effect of glass composition on the chemical durability of zinc phosphate-based glasses in aqueous solutions
hal.structure.identifier | Process Chemistry Centre | |
dc.contributor.author | MASSERA, Jonathan | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | BOURHIS, Kevin | |
hal.structure.identifier | School of Material Science and Engineering | |
dc.contributor.author | PETIT, Laëtitia | |
hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
dc.contributor.author | COUZI, Michel | |
hal.structure.identifier | Process Chemistry Centre | |
dc.contributor.author | HUPA, Leena | |
hal.structure.identifier | Process Chemistry Centre | |
dc.contributor.author | HUPA, Mikko | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | VIDEAU, Jean-Jacques | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CARDINAL, Thierry | |
dc.date.issued | 2013 | |
dc.identifier.issn | 0022-3697 | |
dc.description.abstractEn | The 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.iso | en | |
dc.publisher | Elsevier | |
dc.subject.en | Glasses | |
dc.subject.en | Optical materials | |
dc.subject.en | Electron microscopy | |
dc.subject.en | Raman spectroscopy | |
dc.subject.en | X-ray diffraction | |
dc.title.en | Effect of glass composition on the chemical durability of zinc phosphate-based glasses in aqueous solutions | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.jpcs.2012.08.010 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Journal of Physics and Chemistry of Solids | |
bordeaux.page | 121-127 | |
bordeaux.volume | 74 | |
bordeaux.issue | 1 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00763855 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00763855v1 | |
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