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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA PHYSICA - Issue no. 1 / 2012 | |||||||
Article: |
FTIR AND UV-VIS SPECTROSCOPIC INVESTIGATION OF ERBIUM-ZINC-BORATE GLASS CERAMICS. Authors: R. STEFAN, E. CULEA. |
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Abstract: Fourier transform infrared (FTIR) and Ultraviolet–Visible (UV-VIS) spectroscopic studies have been employed to investigated the samples from the (Er2O3)x·(B2O3)(60-x)·(ZnO)40 (0 ≤ x ≤ 10 mol%) glass ceramic system. FTIR data show that the glass ceramic network structure consists on the BO3, BO4 and ZnO4 structural units, and the conversion among these units mainly depends on the Er2O3 content. The optical absorption spectra of studied samples were recorded in the spectral range from 200 to 900 nm at room temperature. The optical band gap energy for the studied glass ceramics were calculated from the optical absorption spectra.
Keywords: Zinc borate glass ceramics; Er2O3; FTIR; Optical properties. |
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