Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13087/1212
Title: Development and characterization of low temperature metallic glazes in Na2O-B2O3-SiO2 (NBS) system
Authors: Kılınç Mirdalı, Nergis
Daday, Mine Taykurt
Taykurt Daday, Mine Taykurt
Keywords: Crystal formation
Metallic glaze
Reductive atmosphere
Issue Date: 2019
Publisher: Elsevier Ltd
Abstract: This paper presents the results of an investigation into crystal formation in NBS system for glaze with metallic appearance experimentally produced by embedding metallic substances as AgNO3, BaCl2, CuSO4 and CuCO3 and their characterizations. Composition of NBS was calculated by using Seger Method. According to the quantity of components, crystal phases were marked on Na2O-B2O3-SiO2 ternary diagrams. The amount of AgNO3 (2 wt%) was kept constant that other metallic substances (BaCl2, CuSO4 and CuCO3) were added in an amount of 5 wt% as had an impact on the mechanism of crystalline phase growth. These glaze compositions were applied over the surface of the commercial bodies and fired at 1040 °C, cooled to 750 °C and then reduced in the reductive atmosphere in order to obtain metallic layer on glaze surfaces for 20 min. These glaze layers characterized under mineralogical, microstructural and chemical points of view by means of X-Ray Diffraction (XRD), optical microscopy (OM), Scanning Electron Microscopy coupled with Energy Dispersive X-ray (SEM-EDX) and Ulltraviolet Visible Spectroscopy (UV–Vis) techniques. The results showed that silver and copper particles/crystals developed near/on the glaze surfaces creating multicolored metallic shine. Diffusion of metallic particles/crystals shown on the glazed layers as Ag and Cu followed by nucleation and growth in a reductive atmosphere. © 2019 Elsevier Ltd and Techna Group S.r.l.
URI: https://doi.org/10.1016/j.ceramint.2019.07.164
https://hdl.handle.net/20.500.13087/1212
ISSN: 0272-8842
Appears in Collections:Bilgisayar Mühendisliği Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu

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