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Structural investigation of calcium-soda-phosphate glasses with small content of silver oxide

D. MURESAN1, M. VASILESCU1, I. BALASZ1,* , C. POPA1, W. KIEFER2, S. SIMON1

Affiliation

  1. Faculty of Physics, Babes-Bolyai University, M. Kogalniceanu, No.1, 400084, Cluj-Napoca, Romania
  2. Institut für Physikalische Chemie, Universität Würzburg, D-97074 Würzburg, Germany

Abstract

Calcium-soda-phosphate glasses of (100-x)[50P2O5⋅30CaO⋅20Na2O)⋅xAg2O system, with x ≤ 0.25 mol % were prepared by classical melting and casting method. The samples were investigated using X-ray diffraction (XDR), Raman, infrared (IR) and 31P magic angle spinning nuclear magnetic resonance (MAS-NMR) spectroscopies. The X-ray powder diffraction patterns consist in a broad line, typical of vitreous systems. The Raman and IR spectra show significant distorsion of the phosphate groups with silver doping level. Both Raman, IR and 31P MAS-NMR results reveal the presence of Q1 and Q2 species..

Keywords

Calcium-soda-phosphate glasses, Structure, Raman, IR, MAS-NMR spectroscopy.

Submitted at: Jan. 18, 2006
Accepted at: March 23, 2006

Citation

D. MURESAN, M. VASILESCU, I. BALASZ, C. POPA, W. KIEFER, S. SIMON, Structural investigation of calcium-soda-phosphate glasses with small content of silver oxide, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 2, pp. 558-560 (2006)