Effect of BaO ratio on the structure of glass–ceramic composite materials from the SiO2–Al2O3–Na2O–K2O–CaO system |
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| Affiliation: | 1. Instituto de Tecnología Cerámica – Asociación de Investigación de las Industrias Cerámicas, Castellon, Spain;2. Department of Chemical Engineering, Universitat Jaume I, Campus Universitario Riu Sec, 12006 Castellon, Spain;1. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China;2. School of Physics, Inner Mongolia University of Science &Technology, Baotou 014010, China;3. Institute of Mining Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China |
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| Abstract: | This article focused on effect of the content of barium oxide on microstructure of the glass–ceramic materials based on the system SiO2–Al2O3–Na2O–K2O–CaO. The following characterisation techniques have been used: X-ray diffraction (XRD), scanning electron microscopy with micro-analyser (SEM–EDS), mid-infrared analysis (MIR), far-infrared analysis (FIR) and Raman Spectroscopy. Significant differences were observed in microstructure of silica–alumina network of glassy phase and phase composition related to changes in the amount of the barium oxide additive. Discussed results are part of a larger project implemented under the PBS Applied Research Programme, in order to determine the compositions of glass–ceramic materials with potential application as a chemically resistant hard coatings or/and resistant to thermal shock or as construction materials. |
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| Keywords: | Glass–ceramic Structure Microstructure Phases |
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