An EBSD Study on Crystallization of CaO-MgO-Al2O3-SiO2 (CMAS) Glass

Yıl 2022, Cilt: 10 Sayı: 2, 216 - 229, 30.06.2022

Sinem Başkut Emrah Dölekçekiç Göktuğ Günkaya Taner Kavas

https://doi.org/10.29109/gujsc.1091233

Öz

In this study, heat treatment was applied to the CMAS parent glass produced using brucite with calcite, kaolin, ulexite natural raw materials and commercial MgF2, considering the DTA measurements. The crystallization behaviour and the growth directions of the crystals were investigated. XRD and SEM investigations revealed that the anorthite crystals were formed during heat treatment, and glass ceramic was obtained in the CAS system by surface crystallization. According to EBSD measurements, the {100} faces of the anorthite crystals just below the surface have a relatively higher ratio of lying parallel to the surface than their edges ({110}) and corners ({111}). These crystals grew by orienting in the same direction to the inner region of the remaining glass. However, some crystals exhibited random orientation. The tendency of crystals' same planes to lie parallel to the surface was relatively less in the inner regions than those on the surface.

Anahtar Kelimeler

Anorthite, Surface Crystallization, Glass ceramics, EBSD, DTA

Kaynakça

• [1] Deubener J, Allix M, Davis MJ, Duran A, Höche T, Honma T, Komatsu T, Krüger S, Mitra I, Müller R, Nakane S, Pascual MJ, Schmelzer JWP, Zanotto ED, Zhou S (2018) Updated definition of glass-ceramics. Journal of Non-Crystalline Solids, 501, 3–10.
• [2] Sakamoto A, Yamamoto S (2010) Glass–Ceramics: Engineering Principles and Applications. International Journal of Applied Glass Science 1(3): 237–247.
• [3] Mcmillan PW (1982) The Crystallisation of Glasses. Journal of Non-Crystalline Solids, 52, 67-76.
• [4] Zanotto ED (2000) Experimental studies of surface nucleation and crystallization of glasses. in Nucleation and Crystallization in Glass and Liquids. Journal of American Ceramic Society, pp. 65-74. ISBN-13: 978-0944904572.
• [5] Davis MJ, Zanotto ED (2017) Glass-ceramics and realization of the unobtainable: Property combinations that push the envelope. Materials Research Society, 42, 195-199.
• [6] Fernandes MHV, Silva AMB (2016) Glass-Ceramics: Concepts and Practical Aspects. in Overall Aspects of Non-Traditional Glasses: Synthesis, Properties and Applications. Bentham e-books, pp. 39-65. ISBN: 978-1-68108-208-0.
• [7] Ozabaci M, Aksan MA, Kirat G, Kizilaslan O, Yakinci ME (2006) Preparation and characterization of CaO-Al2O3-SiO2 (CAS) glass-ceramics. Journal of Non-Crystalline Solids 454, 8–12.
• [8] Morsi MM, Khater GA, Range KJ (2001) Glass ceramics in the system diopside, anorthite- orthoclase prepared by using some industrial waste materials. Glass Technology, 42(6): 160-164.
• [9] Pinckney LR (2001) Glass Ceramics, Encyclopedia of Materials: Science and Technology. Elsevier, pp. 3535-3540.
• [10] Marghussian V (2015) Nanoglass Ceramics Processing Properties and Applications. Elsevier, pp. 2-61.
• [11] Leonelli C, Manfredini T, Paganelli M, Pozzi P, Pellacani GC (1991) Crystallization of some anorthite-diopside glass precursors. Journal of Materials Science. 26, 5041-5046.
• [12] Carter CB, Norton MG (2013) Processing Glass and Glass-Ceramics in Ceramic Materials Science and Engineering. Springer, New York, pp. 389-409.
• [13] Xiao H, Cheng Y, Yang Q, Senda T (2006) Mechanical and tribological properties of calcia–magnesia–alumina–silica-based glass–ceramics prepared by in situ crystallization. Materials Science and Engineering:A, 423(1–2),170-174.
• [14] Merkit ZY, Toplan HO, Toplan N (2018) The crystallization kinetics of CaO–Al2O3–SiO2 (CAS) glass–ceramics system produced from pumice and marble dust. Journal of Thermal Analysis and Calorimetry, 134, 807–811.
• [15] Russel C, Wisniewski W (2021) How Can Surface-Crystallized Glass-Ceramics Be Piezoelectric?. Crystal Growth Design, 21, 2405−2415.
• [16] Wisniewski W, Nagel M, Volksch G, Russel C (2010) Electron Backscatter Diffraction of Fresnoite Crystals Grown from the Surface of a 2BaO3 TiO2 2.75SiO2 Glass. Crystal Growth Design, 10(3), 1414-1418.
• [17] Wisniewski W, Volksch G, Russel C (2011) The degradation of EBSD-patterns as a tool to investigate surface crystallized glasses and to identify glassy surface layers. Ultramicroscopy, 111(12), 1712-1719.
• [18] Russel, C. (1997) Oriented crystallization of glass. A review. Journal of Non-Crystalline Solids, 219, 212-218.
• [19] Muller R, Zanotto ED, Fokin VM (2000) Surface crystallization of silicate glasses: nucleation sites and kinetics. Journal of Non-Crystalline Solids, 274, 208−231.
• [20] Stojakovic D (2012) Electron backscatter diffraction in materials characterization. Processing and Application of Ceramics, 6(1), 1–13.
• [21] Schwartz AJ, Kumar M, Adams BL, Field DP (2009) Electron backscatter diffraction in materials science. 2nd edition, Springer, New York.
• [22] See http://www.ebsd.com/introduction for further details.
• [23] Stebbins JF, Dubinsky EV, Kanehashi K, Kelsey KE (2008) Temperature effects on non-bridging oxygen and aluminum coordination number in calcium aluminosilicate glasses and melts. Geochimica et Cosmochimica Acta, 72, 910–925.
• [24] Yurdakul A, Günkaya G, Kavas T, Dölekçekiç E, Karasu B (2014) Investigations on Fiber Production Attempts from the Borosilicate and SMFMZS (SrO-MgO-Fe2O3-Mn2O3-ZrO2-SiO2) Glass Systems. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, 14(OZ5701), 1-9.
• [25] Fox KM, Edwards TB, Peeler DK (2008) Control of Nepheline Crystallization in Nuclear Waste Glass. International Journal of Applied Ceramic Technology, 5(6), 666–673.
• [26] Deshkar A, Gulbiten O, Youngman RE, Mauroc JC, Goel A (2020) Why does B2O3 suppress nepheline (NaAlSiO4) crystallization in sodium aluminosilicate glasses? Physical Chemistry Chemical Physics, DOI: 10.1039/d0cp00172d.
• [27] Sitzman SD, Nolze G, Nowell MM (2010) EBSD Pattern Quality and its Use in Evaluating Sample Surface Condition. Microscopy and Microanalysis, 16, 698-699.
• [28] Wright SI, Nowell MM (2006) EBSD Image Quality Mapping. Microscopy and Microanalysis, 12, 72-84.