The influence of nanocrystallization process on thermal and optical parameter in oxyfluoride glasses

• Autorzy: Jaglarz J. , Reben M.
• Języki publikacji: EN

Abstrakty

EN

The influence of nanocrystallization process in oxyfluoride glasses Na2O–Al2O3–SiO2–LaF3–NaF doped with rare earth (RE) ions on their thermal and optical properties is studied. The thermal characteristics of oxyfluoride glasses (OG) with Tm3+, Yb3+ are presented. The effect of the glass crystallization on thermal stability of the glass and crystallizing phases formed upon heat treatment is investigated by DTA/DSC and XRD methods. It has been found that the effect of nanocrystallization of LaF3 and incorporation of RE elements in formed upon heat treatment nanocrystallites depends on the kind of rare earth elements and is determined by factors of crystallochemical nature and requires adequate proportions between the components forming glass structure. The influence of nanocrystallization process in oxyfluoride glasses Na2O–Al2O3–SiO2–LaF3–NaF doped with rare earth (RE) ions on their thermal and optical properties is studied. The thermal characteristics of oxyfluoride glasses (OG) with Tm3+, Yb3+ are presented. The effect of the glass crystallization on thermal stability of the glass and crystallizing phases formed upon heat treatment is investigated by DTA/DSC and XRD methods. It has been found that the effect of nanocrystallization of LaF3 and incorporation of RE elements in formed upon heat treatment nanocrystallites depends on the kind of rare earth elements and is determined by factors of crystallochemical nature and requires adequate proportions between the components forming glass structure.

Słowa kluczowe

EN

oxyfluoride glasses; rare earth elements (REE); thermal and optical properties

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2010
• Tom: Vol. 40, nr 2
• Strony: 439--447
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Jaglarz J.

autor

Reben M.

• Cracow University of Technology, Institute of Physics, ul. Podchorążych 1, 30-084 Kraków, Poland

Bibliografia

• [1] ZHONGCHAO DUAN, JUNJIE ZHANG, WEIDONG XIANG, HONGTAO SUN, LILI HU, Multicolor upconversion of Er3+/Tm3+/Yb3+ doped oxyfluoride glass ceramics, Materials Letters 61(11–12), 2007, pp. 2200–2203.
• [2] REBEN M., WACŁAWSKA I., Structure and nanocrystallization of SiO2–Al2O3–Na2O–LaF3, Proceedings of the XXI ICG Strasbourg, 2007.
• [3] PAN Z., JAMES K., CUI Y., BURGER A., CHEREPY N., PAYNE S.A., MU R., MORGAN S.H., Terbium--activated lithium–lanthanum–aluminosilicate oxyfluoride scintillating glass and glass-ceramic, Nuclear Instruments and Methods in Physics Research A 594(2), 2008, pp. 215–219.
• [4] REBEN M., WACŁAWSKA I., PALUSZKIEWICZ C., ŚRODA M., Thermal and structural studies of nanocrystallization of oxyfluoride glasses, Journal of Thermal Analysis and Calorimetry 88(1), 2007, pp. 285–289.
• [5] AZZAM R.M.A., BASHARA N.M., Ellipsometry and Polarized Light, Nord Holland, 1987.
• [6] ŚRODA M., WACŁAWSKA I., STOCH L., REBEN M., DTA/DSC study of nanocrystallization in oxyfluoride glasses, Journal of Thermal Analysis and Calorimetry 77(1), 2004, pp. 193–200.
• [7] BRUGGEMAN D.A.G., Berechnung verschiedener physikalischer konstanten von heterogenen substanzen, Annalen der Physik (Leipzig) B 24, 1935, pp. 636–674.
• [8] JELLISON G.E., Spectroscopic ellipsometry data analysis: measured versus calculated quantities, Thin Solid Films 313–314, 1998, pp. 33–39.
• [9] CompleteEasy Data Analysis Manual, J.A. Woolam Co., Inc., 2008.