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Features of the mechanical properties of phosphate glasses doped with rare earth elements under indentation

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Abstract

The microstructure, as well as the mechanical and thermal properties, of phosphate glasses (PhGs) doped with rare earth elements (REEs), namely, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, and Yb, were studied in the present paper. The strength parameters of the PhGs and their dependence on the load value modification were estimated by the dynamic indentation method. Three specific stages were revealed in the deformation process, including nano-, submicro-, and microdeformation. The factors responsible for each stage were determined. It was shown that the strength properties (Young’s modulus and hardness) and the thermal characteristics (the lower and upper annealing temperature, the softening temperature, and the vitrification temperature) exhibit no evident relationship with the atomic mass and ionic radius of an REE. An assumption was made that the elastic and plastic properties of PhGs can be determined by the internal structure of the glasses.

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Authors and Affiliations

  1. Institute of Applied Physics, Academy of Sciences of Moldova, 5 Academy str., Chisinau, MD-2028, Republic of Moldova

    D. Z. Grabco, O. A. Shikimaka, K. Pyrtsak, A. Prisacaru & Z. Danitsa

  2. Institute of Optoelectronics INOE2000, University of Bucharest, Magurele, Romania

    M. Elisa, B. A. Sava, I. Feraru & D. Ursu

  3. National Institute for Lasers, Plasma, and Radiation Physics, Magurele, Romania

    L. Boroica

Authors
  1. D. Z. Grabco
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  2. O. A. Shikimaka
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  3. M. Elisa
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  4. B. A. Sava
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  5. L. Boroica
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  6. K. Pyrtsak
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  7. A. Prisacaru
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  8. Z. Danitsa
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  9. I. Feraru
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  10. D. Ursu
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Correspondence to D. Z. Grabco.

Additional information

Original Russian Text © D.Z. Grabco, O.A. Shikimaka, M. Elisa, B.A. Sava, L. Boroica, K. Pyrtsak, A. Prisacaru, Z. Danitsa, I. Feraru, D. Ursu, 2012, published in Elektronnaya Obrabotka Materialov, 2012, No. 4, pp. 83–93.

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Grabco, D.Z., Shikimaka, O.A., Elisa, M. et al. Features of the mechanical properties of phosphate glasses doped with rare earth elements under indentation. Surf. Engin. Appl.Electrochem. 48, 365–374 (2012). https://doi.org/10.3103/S1068375512040072

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  • DOI: https://doi.org/10.3103/S1068375512040072

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