Abstract
Crystallization and sintering behaviour of three cordierite (2MgO-2Al2O3-5SiO2) glasses containing different amount of additives were investigated and compared by using differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and the Archimedes method. The stoichiometric 2MgO-2Al2O3-5SiO2 (MAS) glass and the 2MgO-2Al2O3-5SiO2 glass containing 3 wt% of B2O3 and 3 wt% of P2O5 (MASBP) showed two exotherms (one for μ-cordierite formation from a glass and the other for α-cordierite formation from the μ-cordierite phase), whereas the 2MgO-2Al2O3-5SiO2 glass containing 2 wt % of B2O3, 2 wt% of P2O5, and 2 wt % of TiO2 (MASBPT) showed only a single exotherm representing α-cordierite formation. By using Kissinger, Augis-Bennett, Ozawa, and modified Kissinger methods, the activation energy values for α-cordierite formation in the MASBP and MASBPT glasses were determined as 310±6 and 326±13 kJ mol−1, respectively, whereas that in the MAS glass was determined as 868±5 kJ mol−1. The MASBPT glass showed the lowest peak temperature value for α-cordierite formation (980 °C) amongst the three glasses. Both the MASBP and MASBPT glasses showed excellent sintering behaviour (> 99.7% of theoretical density).
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G. H. Beall andD. A. Duke, in “Glass Science and Technology”, Vol. 1, “Glass Ceramic Technology” edited by D. R. Uhlmann and N. J. Kreidl (Academic Press, New York, 1983) p. 403.
A. I. Kingon andR. F. Davis, in “Engineered Materials Handbook”, Vol. 2, “Ceramics and Glasses” edited by S. J. Schneider, Jr. (ASM International, Metals Park, OH, 1991) p. 758.
M. Pinero, M. Atik andJ. Zarzycki,J. Non-Cryst. Solids 147–148 (1992) 1523.
D. Kervadec, M. Coster andJ. L. Chermant,Mater. Res. Bull. 27 (1992) 967.
I. Wardsworth andR. Stevens,J. Eur. Ceram. Soc. 9 (1992) 153.
N. Clausen andG. Petzow,J. de Physique (Paris), Colloque C1 suppl to47 (1986) 693.
V. J. Powers andC. H. Drummond,Ceram. Eng. & Sci. Proc. 7 (1986) 969.
R. R. Tummala,J. Amer. Ceram. Soc. 74 (1991) 895.
S. H. Knickerbocker, A. H. Kumar andL. W. Herron,Amer. Ceram. Soc. Bull. 72 (1993) 90.
E. M. Rabinobich, in “Advances in Ceramics”, Vol. 4, “Nucleation and Crystallization in Glasses”, edited by J. H. Simmons, D. R. Uhlmann and G. H. Beall (American Ceramic Society, Columbus, OH, 1982) p. 327.
P. C. Panda, W. M. Mobley andR. Raj,J. Amer. Ceram. Soc. 72 (1989) 2361.
T. Rudolph, K-L. Weisskopt, W. Pannhorst andG. Petzow,Glastech. Ber. 64 (1991) 305.
G. A. Rankin andH. E. Merwin,Amer. J. Sci. 4th Ser. 45 (1918) 301.
R. F. Geller andH. Insley,Bur. Stand. J. Res. 9 (1932) 35.
N. A. Toropov andN. A. Sirazhiddinov, in “Structure of Glass” edited by E. A. Poraikoshits (Consultants Bureau, New York, 1965).
R. D. Maurer,J. Appl. Phys. 33 (1962) 2132.
N. A. Toropov, R. S. M. Zhukausksas andF. K. Aleinikov,Izd. Akad. Nauk. SSSR Neorg. Mat. 2 (1966) 357.
R. C. De Veckey andA. J. Majumdar,Min. Mag. 24 (1989) 811.
H. E. Kissinger,J. Res. Natl. Bur. Stand. (US) 57 (1956) 217.
J. A. Augis andJ. E. Bennett,J. Therm. Anal. 13 (1978) 283.
K. Matusita andS. Sakka,J. Non-Cryst. Solids 38–39 (1980) 741.
T. Ozawa,Polymer 12 (1971) 150.
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Sung, Y.M. The effect of additives on the crystallization and sintering of 2MgO-2Al2O3-5SiO2 glass-ceramics. J Mater Sci 31, 5421–5427 (1996). https://doi.org/10.1007/BF01159312
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DOI: https://doi.org/10.1007/BF01159312