Abstract
The paper investigates the structure and crystallization specifics of glass behaving as a precursor of a pyroelectric material with a unique combination of properties of the composition 25La2O3 · 25B2O3 · 50GeO2 depending on the quantity of Al2O3 additive. It is established that as the alumina content grows, the crystallization of glass essentially changes: the propensity of glass to oriented surface crystallization of ferroelectric LaBGeO5 is suppressed and the share of lanthanum borate and germanate grows. The type of crystallization of glass correlates with IR spectroscopy data, indicating that modifications of the glass structure caused by increasing Al2O3 content lead to substantial changes in the BO3: BO4 ratio.
Similar content being viewed by others
References
P. Gupta, H. Jain, D. B. Williams, et al., “Structural evolution of LaBGeO5 transparent ferroelectric nano-composites,” J. Non-Cryst. Solids, 349, 291–298 (2004).
V. N. Sigaev, P. D. Sarkisov, E. V. Lopatina, and S. Yu. Stefanovich, “Polar glass-ceramic textures based on stillwellite crystals,” Kristallografiya, 43, 499 (1988).
V. N. Sigaev, “Structure of oxide glasses and formation of polar glass-ceramic textures,” Fiz. Khim. Stekla, 24(4), 295–307 (1998).
Y. Takahashi, Y. Benino, T. Fujiwara, and T. Komatsu, “Second harmonic generation in transparent surface crystallized glasses with stillwellite-type LaBGeO5,” J. Appl. Phys., 89(10), 5282–5287 (2001).
H. Jain, “Transparent ferroelectric glass ceramics,” Ferroelectrics, 306, 111–127 (2004).
S. Shimanuki, S. Hashimoto, and K. Inomata, “Oriented grain growth from lead germanate glasses, ” Ferroelectrics, 51, 53–58 (1983).
Y. Ding, Y. Miura, S. Nakaoka, and T. Nanba, “Oriented surface crystallization of lithium niobate on glass and second harmonic generation,” J. Non-Cryst. Solids, 259, 132–138 (1999).
A. A. Voronkov and Yu. A. P’yatenko, “X-ray study of atomic structure of stillwellite CeBO[SiO4], ” Kristallografiya, 12, 258–262 (1967).
E. I. Kamitsos, A. Patsis, M. A. Karakassides, and G. D. Chryssikos, “Infrared reflectance spectra of lithium borate glasses,” J. Non-Cryst. Solids, 126, 52_–67 (1990).
A. Rulmont and P. Tarte, “Lanthanide borogermanates LnBGeO5: synthesis and structural study by x-ray diffractometry and vibrational spectroscopy,” J. Solid State Chem., 75, 244–250 (1988).
I. Kratochvilova-Hruba, I. Gregora, J. Pokorny, et al., “Vibrational spectroscopy of LaBSiO5 glass and glass-crystal composites,” J. Non-Cryst. Solids, 290(2–3), 224–230 (2001).
N. N. Vinogradova, L. N. Dmitryuk, and O. B. Petrova, “Vitrification and crystallization of glasses based on borates of rare-earth elements,” Fiz. Khim. Stekla, 30(1), 3–8 (2004).
H. Verweij, J. H. J. M. Buster, “The structure of lithium; sodium and potassium germanate glasses studied by Raman scattering,” J. Non-Cryst. Solids, 34, 81–99 (1979).
N. Sigaev, I. Gregora, Pernice, et al., “Structure of lead germanate glasses by Raman spectroscopy,” J. Non-Cryst. Solids, 279, 136–144 (2001).
A. C. Wright, N. M. Vedishcheva, and B. A. Shakhmatkin, “The interrelationship between the structures of borate glasses and crystals,” in: Borate Glasses, Crystals & Melts, The Society of Glass Technology, Sheffield (1997), pp. 80–87.
Author information
Authors and Affiliations
Additional information
__________
Translated from Steklo i Keramika, No. 6, pp. 10–14, June, 2006.
Rights and permissions
About this article
Cite this article
Sigaev, V.N., Orlova, E.V., Lotarev, S.V. et al. Structure and crystallization specifics of alumina-bearing lanthanide borogermanate glass. Glass Ceram 63, 184–189 (2006). https://doi.org/10.1007/s10717-006-0071-3
Issue Date:
DOI: https://doi.org/10.1007/s10717-006-0071-3