Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2
No Thumbnail
Authors
Matijašević, Srđan
Živanović, Vladimir D.
Tošić, Mihajlo B.
Grujić, Snežana R.
Stojanović, Jovica

Nikolić, Jelena

Ždrale, Sonja
Article (Published version)
Metadata
Show full item recordAbstract
This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination of phase composition and microstructure of crystallized glass. It was detected that this glass crystallizes by the surface crystallization mechanism. SEM micrographs of the crystallized samples revealed that the crystals grow in the form of dendrites. The glass-ceramics with complex phase composition was obtained. Three crystalline phases were detected where LiNbO3 has grown as primary phase and a secondary ones Li2Si2O5 and SiO2 appeared. The calculated average crystallite sizes are: 27 nm for LiNbO3 , 115 nm for Li2Si2O5 and 45 nm for SiO2 . From the experimental data an activation energy of crystals growth, calculated using the Kissinger relation, is Ea = 275 ±10 KJ / mol.
Keywords:
lithium niobate / glass-ceramics / crystallization / crystal growthSource:
Processing and Application of Ceramics, 2011, 5, 4, 223-227Publisher:
- Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
Collections
Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Matijašević, Srđan AU - Živanović, Vladimir D. AU - Tošić, Mihajlo B. AU - Grujić, Snežana R. AU - Stojanović, Jovica AU - Nikolić, Jelena AU - Ždrale, Sonja PY - 2011 UR - https://ritnms.itnms.ac.rs/handle/123456789/199 AB - This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination of phase composition and microstructure of crystallized glass. It was detected that this glass crystallizes by the surface crystallization mechanism. SEM micrographs of the crystallized samples revealed that the crystals grow in the form of dendrites. The glass-ceramics with complex phase composition was obtained. Three crystalline phases were detected where LiNbO3 has grown as primary phase and a secondary ones Li2Si2O5 and SiO2 appeared. The calculated average crystallite sizes are: 27 nm for LiNbO3 , 115 nm for Li2Si2O5 and 45 nm for SiO2 . From the experimental data an activation energy of crystals growth, calculated using the Kissinger relation, is Ea = 275 ±10 KJ / mol. PB - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad T2 - Processing and Application of Ceramics T1 - Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2 EP - 227 IS - 4 SP - 223 VL - 5 UR - conv_398 ER -
@article{ author = "Matijašević, Srđan and Živanović, Vladimir D. and Tošić, Mihajlo B. and Grujić, Snežana R. and Stojanović, Jovica and Nikolić, Jelena and Ždrale, Sonja", year = "2011", abstract = "This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination of phase composition and microstructure of crystallized glass. It was detected that this glass crystallizes by the surface crystallization mechanism. SEM micrographs of the crystallized samples revealed that the crystals grow in the form of dendrites. The glass-ceramics with complex phase composition was obtained. Three crystalline phases were detected where LiNbO3 has grown as primary phase and a secondary ones Li2Si2O5 and SiO2 appeared. The calculated average crystallite sizes are: 27 nm for LiNbO3 , 115 nm for Li2Si2O5 and 45 nm for SiO2 . From the experimental data an activation energy of crystals growth, calculated using the Kissinger relation, is Ea = 275 ±10 KJ / mol.", publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad", journal = "Processing and Application of Ceramics", title = "Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2", pages = "227-223", number = "4", volume = "5", url = "conv_398" }
Matijašević, S., Živanović, V. D., Tošić, M. B., Grujić, S. R., Stojanović, J., Nikolić, J.,& Ždrale, S.. (2011). Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2. in Processing and Application of Ceramics Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 5(4), 223-227. conv_398
Matijašević S, Živanović VD, Tošić MB, Grujić SR, Stojanović J, Nikolić J, Ždrale S. Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2. in Processing and Application of Ceramics. 2011;5(4):223-227. conv_398 .
Matijašević, Srđan, Živanović, Vladimir D., Tošić, Mihajlo B., Grujić, Snežana R., Stojanović, Jovica, Nikolić, Jelena, Ždrale, Sonja, "Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2" in Processing and Application of Ceramics, 5, no. 4 (2011):223-227, conv_398 .