Abstract
In this study, semitransparent lithium disilicate glass-ceramics in the Li2O-K2O-Al2O3-Y2O3-La2O3-SiO2 system was investigated by incorporation of P2O5 as nucleation agent and alkaline earth oxides as additive. The influence of alkaline earth oxides on the structure of glasses network, crystalline phases, microstructure and mechanical properties were investigated by means of Raman spectra, differential scanning calorimetry (DSC), X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The mechanical strength was measured corresponding to norm ISO 6872. The Raman spectra predominantly showed that small additions of alkaline earth oxides not only form asymmetrical vibrations of the M-Si-O bonds, but also enhance the intensities of symmetrical vibrations of the P-O bonds, making the glass network more stable. And the small additions of CaO or BaO has more influence on the crystallization behaviour, crystalline phase, microstructure and mechanical properties of the glass-ceramics than the addition of MgO. The additions of alkaline earth oxides enhanced the first exothermic peak temperature but decreased the flexural strength of lithium disilicate glass-ceramics.
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References
Brodkin D, Orange W, Panzera C, Mead B, Panzera P and Holly M 2004 U.S. patent 6,802,894
Cheng J J J 1986 Non-Cryst. Solids 80 52
Fuss T, Ray C S, Lesher C E and Day D E 2006 J. Non-Cryst. Solids 352 2073
Gopal N O, Narasimhulu K V and Rao J L 2004 Spectrochimica Acta A60 2441
Hagiwara H and Oyamada R 1976 J. Phys. Soc. Jpn. 40 199
Headley J and Loehman R E 1986 J. Am. Ceram. Soc. 67 620
Heffernan M J, Aquilino S A, Diaz-Arnold A M, Haselton D R, Stanford C M and Vargas M A 2002 J. Prosthet. Dent. 88 4
Holand W, Rheinberger V and Schweiger M 2003 Philos. Trans. R. Soc. London A361 575
Holand W, Rheinberger V, Apel E and Van’t H C 2007 J. Eur. Ceram. Soc. 27 1521
Holand W, Rheinberger V, Apel E, Van’t H C, Holand M, Dommann A, Obrecht M, Mauth C and Graf-Hausner U 2006 J. Mater. Sci.: Mater. Med. 17 1037
Kuchler R, Kanert O, Vereget T and Jain H 2007 J. Non-Cryst. Solids 353 3940
Lazarev A N and Tenisheva T F 1964 J. Str. Chem. 4 647
Lin C C, Shen P, Chang H M and Yang Y J 2006 J. Eur. Ceram. Soc. 26 3613
Luo Z W and Lu A X 2009 Chinese J. Nonferrous Metals 19 1264
Luo Z W, Lu A X and Han L G 2009 Chinese J. Nonferrous Metals 19 2018
McMillan P W 1982 J. Non-Cryst. Solids 52 67
Mogu-Milanković A, Pavić L, Reis S T, Day D E and Ivanda M 2010 J. Non-Cryst. Solids 356 715
Sun T, Xiao H N, Cheng Y and Liu H 2009 Ceram. Int. 35 1051
Zheng X, Wen G W and Song L 2007 Acta Mater. 55 3583
Zheng X, Wen G W, Song L and Huang X X 2008 Acta Mater. 56 549
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Luo, Z., Zhou, J., Li, J. et al. Effects of MO (M = Mg, Ca, Ba) on crystallization and flexural strength of semi-transparent lithium disilicate glass-ceramics. Bull Mater Sci 34, 1511–1516 (2011). https://doi.org/10.1007/s12034-011-0352-5
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DOI: https://doi.org/10.1007/s12034-011-0352-5