Optical properties and crystallization kinetics of TeO2-GeO 2- ZnO glasses

F. Altin; V. Kalem; G. Özen; M. L. Öveçoǧlu; M. R. Özalp

Optical properties and crystallization kinetics of TeO₂-GeO ₂- ZnO glasses

F. Altin^*, V. Kalem, G. Özen, M. L. Öveçoǧlu, M. R. Özalp

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Ultraviolet visible near-infrared (UV/VIS/NIR) and differential thermal analysis (DTA) measurements were carried out in order to investigate the optical and thermal properties of TeO₂-GeO₂-ZnO glasses. The samples were prepared by fusing the mixture of their respective reagent grade powders in a platinum crucible at 850°C for 1h. According to the DTA scan curves of 0.85TeO₂-0.05GeO₂-0.10ZnO and 0.90TeO ₂-0.05GeO₂-0.05ZnO glasses taken at different heating rates, activation energy values and the Avrami constants for the crystallization peaks were determined. The absorption spectra measured between 300-800 nm wavelength region were used to determine the optical band-gap and Urbach energies of the glasses.

Original language	English
Pages (from-to)	1875-1878
Number of pages	4
Journal	Key Engineering Materials
Volume	264-268
Issue number	III
Publication status	Published - 2004
Event	Proceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey Duration: 29 Jun 2003 → 3 Jul 2003

Keywords

Crystallization behavior
Optical energy gap
TeO-GeO-ZnO glasses

Cite this

@article{b8abc667800c4f61888edb05089d27e3,

title = "Optical properties and crystallization kinetics of TeO2-GeO 2- ZnO glasses",

abstract = "Ultraviolet visible near-infrared (UV/VIS/NIR) and differential thermal analysis (DTA) measurements were carried out in order to investigate the optical and thermal properties of TeO2-GeO2-ZnO glasses. The samples were prepared by fusing the mixture of their respective reagent grade powders in a platinum crucible at 850°C for 1h. According to the DTA scan curves of 0.85TeO2-0.05GeO2-0.10ZnO and 0.90TeO 2-0.05GeO2-0.05ZnO glasses taken at different heating rates, activation energy values and the Avrami constants for the crystallization peaks were determined. The absorption spectra measured between 300-800 nm wavelength region were used to determine the optical band-gap and Urbach energies of the glasses.",

keywords = "Crystallization behavior, Optical energy gap, TeO-GeO-ZnO glasses",

author = "F. Altin and V. Kalem and G. {\"O}zen and {\"O}ve{\c c}oǧlu, {M. L.} and {\"O}zalp, {M. R.}",

year = "2004",

language = "English",

volume = "264-268",

pages = "1875--1878",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd",

number = "III",

note = "Proceedings of the 8th Conference and Exhibition of the European Ceramic Society ; Conference date: 29-06-2003 Through 03-07-2003",

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TY - JOUR

T1 - Optical properties and crystallization kinetics of TeO2-GeO 2- ZnO glasses

AU - Altin, F.

AU - Kalem, V.

AU - Özen, G.

AU - Öveçoǧlu, M. L.

AU - Özalp, M. R.

PY - 2004

Y1 - 2004

N2 - Ultraviolet visible near-infrared (UV/VIS/NIR) and differential thermal analysis (DTA) measurements were carried out in order to investigate the optical and thermal properties of TeO2-GeO2-ZnO glasses. The samples were prepared by fusing the mixture of their respective reagent grade powders in a platinum crucible at 850°C for 1h. According to the DTA scan curves of 0.85TeO2-0.05GeO2-0.10ZnO and 0.90TeO 2-0.05GeO2-0.05ZnO glasses taken at different heating rates, activation energy values and the Avrami constants for the crystallization peaks were determined. The absorption spectra measured between 300-800 nm wavelength region were used to determine the optical band-gap and Urbach energies of the glasses.

AB - Ultraviolet visible near-infrared (UV/VIS/NIR) and differential thermal analysis (DTA) measurements were carried out in order to investigate the optical and thermal properties of TeO2-GeO2-ZnO glasses. The samples were prepared by fusing the mixture of their respective reagent grade powders in a platinum crucible at 850°C for 1h. According to the DTA scan curves of 0.85TeO2-0.05GeO2-0.10ZnO and 0.90TeO 2-0.05GeO2-0.05ZnO glasses taken at different heating rates, activation energy values and the Avrami constants for the crystallization peaks were determined. The absorption spectra measured between 300-800 nm wavelength region were used to determine the optical band-gap and Urbach energies of the glasses.

KW - Crystallization behavior

KW - Optical energy gap

KW - TeO-GeO-ZnO glasses

UR - http://www.scopus.com/inward/record.url?scp=8644269792&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:8644269792

SN - 1013-9826

VL - 264-268

SP - 1875

EP - 1878

JO - Key Engineering Materials

JF - Key Engineering Materials

IS - III

T2 - Proceedings of the 8th Conference and Exhibition of the European Ceramic Society

Y2 - 29 June 2003 through 3 July 2003

ER -

Optical properties and crystallization kinetics of TeO₂-GeO ₂- ZnO glasses

Abstract

Keywords

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