作者：Sabrina Ladjama; Alima Mebrek; Azzedine Grid; Sihem Benayache
作者單位：Research Center in Industrial Technologies CRTI,P. O. Box 64,16014,Cheraga, Algiers,Algeria
刊名：JOM
ISSN：1047-4838
出版年：2024-09-30
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期：
起頁：1-13
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語種：英文
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內容簡介The investigation focused on the densification and phase transition of cordierite ceramic made from the Algerian raw material kaolin DD1 and spent refractory bricks (MgO-C) with a ratio weight of 85:15. The samples were sintered for 2 h at 1200–1400°C. All samples were studied in terms of phase evolution on heating and microstructure by XRD, Fourier-transform infrared spectroscopy (FTIR), differential thermal analysis (DTA), density, hardness and SEM observations. The findings indicated that with the elevation of temperature, the crystallinity of α-cordierite exhibited a rising trend, reaching its peak at 1400°C with a value of 54.48%. Conversely, the mullite content suffered a decline as the sintering temperature increased. The utilization of waste brick sources containing magnesia (MgO) at different firing temperatures resulted in an enhanced formation of cordierite and spinel at the expense of mullite, which exhibited a decreasing trend.
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