Abstract: Cordierite-based glass-ceramics with diverse MgO/Al2O3 ratios were prepared by high temperature melting met-hod. The impact of MgO/Al2O3 ratio on the phase separation and crystallization behavior of the MgO-Al2O3-SiO2 glass were investigated by means of differential thermal analyzer (DTA), X-ray diffraction (XRD) and scanning electron microscope (SEM). The results indicated that with the constant content of SiO2, the decrease of MgO/Al2O3 ratios leaded to the morphology change of phase separation droplets from worm-like shape to isolated sphere,and the gradual size reduce of phase separation droplets from 200—300 nm to 30—50 nm. The increase of crystallization peak temperature (Tp) from 997 ℃ to 1 105 ℃could be observed as the MgO/Al2O3 ratio decreased from 3 to 1, which made the crystallization become more difficult. When the MgO/Al2O3 ratio is 3, the MgO-Al2O3-SiO2 glass would produce a large amount of phase separation droplets after heat treatment at 950 ℃. After heat treatment at 1 050 ℃, substantial cordierite crystals were precipitated in phase separation droplets, which were preferentially precipitated in Mg-rich phase. Increasing MgO/Al2O3 ratio was highly beneficial to the phase separation and crystallization in MgO-Al2O3-SiO2 glass. Conversely, reducing the MgO/Al2O3 ratio would weaken the the ability of phase separation and crystallization of the glass.
包镇红, 江伟辉, 苗立锋, 罗薇. MgO/Al2O3比对MgO-Al2O3-SiO2系统玻璃分相与析晶的影响[J]. 材料导报, 2018, 32(24): 4253-4257.
BAO Zhenhong, JIANG Weihui, MIAO Lifeng, LUO Wei. Effect of MgO/Al2O3 Ratio on Phase-separation and Crystallization of MgO-Al2O3-SiO2 Glass. Materials Reports, 2018, 32(24): 4253-4257.
1 Seidel S, Patzig C, Wisniewski W, et al. Characterizing the residual glass in a MgO/Al2O3/SiO2/ZrO2/Y2O3 glass-ceramic[J].Scientific Reports,2016,6:34965. 2 Cao Y, Yin W Z, Wang G S. New development of cordierite-based glass-ceramics[J].Materials Review A:Review Papers, 2012,26(7):42(in Chinese). 曹颖,印万忠,王国胜.堇青石基微晶玻璃的研究新进展[J].材料导报:综述篇,2012,26(7):42. 3 Seidel S, Dittmer M, Hland W, et al. High-strength, translucent glass-ceramics in the system MgO-ZnO-Al2O3-SiO2-ZrO2[J].Journal of the European Ceramic Society,2017,37(7):2685. 4 Wu J M, Hwang S P. Effects of (B2O3, P2O5) additives on microstructural development and phase-transformation kinetics of stoichiometric cordierite glasses[J].Journal of the American Ceramic Society,2000,83(5):1259. 5 Maeda K, Sera Y, Yasumori A. Effect of molybdenum and titanium oxides on mechanical and thermal properties of cordierite-enstatite glass-ceramics[J].Journal of Non-Crystalline Solids,2016,434:13. 6 Qin Y, Qian S Y, Cheng J S, et al. Effect of Cr2O3 and TiO2 on the coloration and crystallization behaviors of CaO-MgO-A12O3-SiO2 glass ceramics[J].Bulletin of the Chinese Ceramic Society,2016(5):1333(in Chinese). 秦媛,骞少阳,程金树,等.Cr2O3及TiO2对CaO-MgO-Al2O3-SiO2微晶玻璃着色及析晶的影响[J].硅酸盐通报,2016(5):1333. 7 Bao Z H, Miao L F, Jiang W H, et al. Effect of B2O3 and P2O5 addition on the phase separation and crystallization of Li2O-MgO-Al2O3-SiO2 glass-ceramics[C]∥Materials Science Forum. Guizhou,2016,848:243. 8 Lu A X, Wang N, Xiao Z H. Effects of alkalis on crystallization and properties of MgO-Al2O3-SiO2 system glass ceramics[J].Journal of Central South University (Science and Technology),2008,39(1):1672(in Chinese). 卢安贤,王宁,肖卓豪.碱金属氧化物对MgO-Al2O3-SiO2系统微晶玻璃析晶和性能的影响[J].中南大学学报(自然科学版),2008,39(1):1672. 9 Hao X J, Luo Z W, Hu X L, et al. Effect of replacement of B2O3 by ZnO on preparation and properties of transparent cordierite-based glass-ceramics[J].Journal of Non-Crystalline Solids,2016,432:265. 10 Zhou X Y, Cheng J S, Kang J F, et al.Effect of alkali mental oxides on viscosity and crystallization behavior of CaO-MgO-Al2O3-SiO2 glass-ceramics[J].Journal of Wuhan University of Technology,2015,37(3):1671(in Chinese). 周新艳,程金树,康俊峰,等.碱金属氧化物对CaO-MgO-Al2O3-SiO2玻璃黏度和析晶性能的影响[J].武汉理工大学学报,2015,37(3):1671. 11 Shen Z C, Wu J H, Tian Z Q, et al. Effect of CaO on the structure and properties of titanium barium silicate glass[J].Chongqing University of Technology(Nature Science),2017,31(11):88(in Chinese). 沈志超,吴家辉,田中青,等.CaO对钛钡硅酸玻璃结构和性能的影响[J].重庆理工大学学报(自然科学),2017,31(11):88. 12 Hwang S P, Wu J M. Effect of composition on microstructural deve-lopment in MgO-Al2O3-SiO2 glass-ceramics[J].Journal of the Ame-rican Ceramic Society,2001,84(5):1108. 13 Wu Z Q, Cheng Y, Zhou W W, et al.Preparation and properties of cordierite-based MgO-Al2O3-SiO2glass-ceramic[J].Bulletin of the Chinese Ceramic Society,2014,33(1):191(in Chinese). 吴钟晴,成茵,周伟伟,等.镁铝硅系堇青石基微晶玻璃的制备及性能研究[J].硅酸盐通报,2014,33(1):191. 14 Shan Y, Li J Z, Deng Z Q, et al. The effect of phase separation of cordierite base glasses on crystallization behavior[J].Journal of the Chinese Ceramic Society,1981,9(4):403(in Chinese). 单瑛,李家治,邓泽群,等.堇青石基微晶玻璃分相对析晶行为的影响[J].硅酸盐学报,1981,9(4):403. 15 Zou X L, Li J Z, Wang C Y, et al. Study on the phase separation of MgO-Al2O3-SiO2 glass containing TiO2[J].Journal of Inorganic Materials,1991,6(3):270(in Chinese). 邹学禄,李家治,王承遇,等.含TiO2的MgO-Al2O3-SiO2系统玻璃分相的研究[J].无机材料学报,1991,6(3):270. 16 Wang Y L, Chen J Y, Chen X X, et al. The effect of TiO2 on the crystallization of cordierite ceramicglass[J].Glass and Enamel,2000,28(2):21(in Chinese). 王艳丽,沈菊云,陈学贤,等.TiO2对堇青石基微晶玻璃的分相与析晶的影响[J].玻璃与搪瓷,2000,28(2):21. 17 胡志强.无机材料科学基础教程(第二版)[M].北京:化学工业出版社,2013:242. 18 Mazurine O V. Phase separation in glass[M].Elsevier,1984:140. 19 Ghasemzadeh M, Nemati A, Baghshahi S. Effects of nucleation agents on the preparation of transparent glass-ceramics[J].Journal of the European Ceramic Society,2012,32(11):2989. 20 邱关明,黄梁钊.玻璃形成学[M].北京:兵器工业出版社,1987:368. 21 Melchiades F G, Rego B T, Higa S M, et al. Factors affecting glaze transparency of ceramic tiles manufactured by the single firing technique[J].Journal of the European Ceramic Society,2010,30(12):2443. 22 曹春娥,顾幸勇,王艳香,等.无机材料测试技术[M].南昌:江西高校出版社,2011:69.
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2018, Vol. 32 
