Acid dissolution of sodium–calcium metaphosphate glasses

Delahaye, Florence; Montagne, Lionel; Palavit, G.; Touray, Jean-Claude; Baillif, Patrick

doi:10.1016/s0022-3093(98)00784-4

Cited by 51 publications

(47 citation statements)

References 14 publications

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“…The addition of erbium and ytterbium oxide can improve the overall chemical durability of phosphate glass, 15,16 leading to improved surface polishing capabilities and fs-beam focusing conditions.…”

Section: B Waveguide Fabrication and Characterizationmentioning

confidence: 99%

Effects of rare-earth doping on femtosecond laser waveguide writing in zinc polyphosphate glass

Fletcher¹,

Witcher²,

Troy³

et al. 2012

Journal of Applied Physics

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Absorption measurements on silver bromide crystals and fibers in the infrared J. Appl. Phys. 113, 043111 (2013) Continuous wave ultraviolet-laser sintering of ZnO and TiO2 nanoparticle thin films at low laser powers J. Appl. Phys. 113, 044310 (2013) Controlling laser emission by selecting crystal orientation Appl. Phys. Lett. 102, 011137 (2013) Impact of wavelength dependent thermo-elastic laser ablation mechanism on the generation of nanoparticles from thin gold films Appl. Phys. Lett. 101, 263107 (2012) Apparatus to measure adsorption of condensable solvents on technical surfaces by photothermal deflection Rev. Sci. Instrum. 83, 114905 (2012) Additional information on J. Appl. Phys. We have investigated waveguide writing in Er-Yb doped zinc polyphosphate glass using a femtosecond laser with a repetition rate of 1 KHz. We find that fabrication of good waveguides requires a glass composition with an O/P ratio of 3.25. The dependence on laser writing parameters including laser fluence, focusing conditions, and scan speed is reported. Waveguide properties together with absorption and emission data indicate that these glasses can be used for the fabrication of compact, high gain amplifying devices. V C 2012 American Institute of Physics.[http://dx

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Section: B Waveguide Fabrication and Characterizationmentioning

confidence: 99%

Effects of rare-earth doping on femtosecond laser waveguide writing in zinc polyphosphate glass

Fletcher¹,

Witcher²,

Troy³

et al. 2012

Journal of Applied Physics

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show abstract

“…Phosphate glasses containing high levels of zinc can also exhibit good durability [56]. This can be attributed to the ability of zinc to depolymerise phosphate networks, a lower Zn 2+ coordination number than many modifiers, the high electrostatic field strength of Zn 2+ and the covalency of P O Zn bonds [53,57]. Divalent cations such as Ca 2+ and Zn 2+ form ionic cross-links between NBOs in separate phosphate chains, demonstrated in the improvement in chemical durability caused by adding zinc to sodium phosphate glasses [58].…”

Section: Chemical Durabilitymentioning

confidence: 99%

Vitrified metal finishing wastesI. Composition, density and chemical durability

Bingham

Hand

2005

Journal of Hazardous Materials

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“…For y ¼ 8 glass, leachant for sampling obtained after 504 and 1008 h of dissolution at 90°C were analyzed by 31 P NMR. The two samples present a single resonance signal at 0.6 ppm that is the signature of monophosphate entities according to Delahaye et al [6]. These authors report the presence of two resonance peaks in the leachant of sodium-calcium metaphosphate glass dissolution.…”

Section: Znpbcdpal Glassesmentioning

confidence: 88%

“…They reported that alkali-calcium methaphosphate glass dissolve congruently by hydration reactions, with a two stage mechanism: surface hydration resulting from water diffusion, then release of metaphosphate chains in solution resulting from surface reactions. Recently Delahaye et al [6] have focused their study on comparison of the sodium calcium metaphosphate dissolution in neutral and acid solutions. The congruent dissolution via the hydration reaction and the presence of hydrated layer were observed in both media, but with a decrease of the dissolution rate in acid medium resulting in modification of the hydrated layer.…”

Section: Introductionmentioning

confidence: 99%