Al2O3和TiO2添加量对糖心产精国品免费入口*完整版制备MgO基陶瓷性能的影响
Effect of Al2O3
and TiO2
Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method
摘 要
采用糖心产精国品免费入口*完整版分别制备Al2O3和TiO2前驱体包覆MgO颗粒，并在1 450℃保温2 h得到MgO基陶瓷，研究了Al2O3和TiO2添加量对陶瓷物相组成、糖心产精国品免费入口*完整版和抗热震性能的影响。结果表明：添加Al2O3后，陶瓷的主要物相为方镁石相和MgAl2O4相，随Al2O3添加量的增加，MgAl2O4相含量增多，线收缩率和热震次数均先增后降，体积密度则增大；添加TiO2后，陶瓷的主要物相为方镁石相、Mg2TiO4相和MgTiO3相，随TiO2添加量的增加，Mg2TiO4和MgTiO3相含量增多，线收缩率和体积密度均先增后降，热震次数则先增加后保持稳定；当Al2O3和TiO2的质量分数分别为6%，4%时，陶瓷的糖心产精国品免费入口*完整版和抗热震性能均最佳。
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
抗热震性能
aluminium oxide
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
thermal shock resistance
Abstract
MgO particles coated with Al2O3 and TiO2 precursors, respectively, were prepared by 糖心产精国品免费入口*完整版 and sintered at 1 450℃ for 2 h, and then the MgO-based ceramics were obtained. The effects of the addition amount of Al2O3 and TiO2 on the phase composition, 糖心产精国品免费入口*完整版 and 糖心产精国品免费入口*完整版of the ceramics were investigated. The results show that the ceramics added with Al2O3 mainly consisted of periclase and MgAl2O4 phases. With increasing Al2O3 addition amount, the MgAl2O4 phase content increased, the linear shrinkage rate and the number of thermal shock cycles first increased and then decreased, and the bulk density increased. The ceramics added with TiO2 was mainly composed of periclase, Mg2TiO4 and MgTiO3 phases. With increasing TiO2 addition amount, the content of Mg2TiO4 phase and MgTiO3 phase increased, the linear shrinkage rate and bulk density first increased and then decreased, and the number of thermal shock cycles first increased and then remained stable. When the mass fractions of Al2O3 and TiO2 were 6%, 4%, respectively, both the 糖心产精国品免费入口*完整版 and 糖心产精国品免费入口*完整版of the ceramics were the best.
中图分类号 TQ174.75DOI 10.11973/jxgccl201804008
所属栏目 新材料 新工艺
基金项目 国家自然科学基金资助项目（51402143）
收稿日期 2017/7/31
修改稿日期 2018/3/7
网络出版日期
作者单位
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备注糖心产精国品免费入口*完整版(1993-),男,辽宁鞍山人,硕士研究生
引用该论文: PENG Zijun,LUO Xudong,YU Min,XIE Zhipeng. Effect of Al2O3 and TiO2 Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method[J]. Materials for mechancial engineering, 2018, 42(4): 35～39
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参考文献
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【7】 AKSEL C, RAND B, RILEY F L,et al. Thermal shock behaviour of magnesia-spinel composites[J]. Journal of the European Ceramic Society, 2004, 24(9):2839-2845.
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【9】 BANERJEE A, DAS S, MISRA S, et al. Structural analysis on spinel (MgAl2O4) for application in spinel-bonded castable[J]. Ceramics International, 2009, 35(1):381-390.
【10】 REVERÍN H, GUTIÉRREZ-CAMPOS D, RODRǑGUEZ R M, et al. Chemical synthesis and thermal evolution of MgAl2O4 spinel precursor prepared from industrial gibbsite and magnesia powder[J]. Materials Letters, 2002, 56(1/2):97-101.
【11】 尹邦跃, 王零森. 3Y-TZP/Al2O3复合粉末的相变研究[J]. 硅酸盐学报, 2001, 29(1):1-7.
【12】 刘慷, 金兑源, 张立群. TiO2对糖心产精国品免费入口*完整版制备Pd/Al2O3-TiO2催化活性的影响[J]. 北京化工大学学报(自然科学版), 2005, 32(1):47-50.
【13】 MOHAMMAD-RAHIMI R, REZAIE H R, NEMATI A. Sintering of Al2O3-SiC composite from sol-gel method with MgO, TiO2 and Y2O3 addition[J]. Ceramics International, 2011, 37(5):1681-1688.
【14】 RYSHKEWITH D W. Oxide ceramics[M].[S.l.]:[s.n.], 1985.
【15】 TRIPATHI H S, MUKHERJEE B, DAS S, et al. Synthesis and densification of magnesium aluminate spinel:Effect of MgO reactivity[J]. Ceramics International, 2003, 29(8):915-918.
【16】 SARKAR R, DAS S K, BANERJEE G. Effect of additives on the densification of reaction sintered and presynthesised spinels[J]. Ceramics International, 2003, 29(1):55-59.
【2】 LI M, ZHOU N, LUO X, et al. Effects of doping Al2O3/SiO2 on the structure and properties of magnesium matrix ceramic[J]. Materials Chemistry & Physics, 2016, 175:6-12.
【3】 LI S H, DU H Y, GUO A R,et al. Preparation of self-reinforcement of porous mullite ceramics through in situ synthesis of mullite whisker in flyash body[J]. Ceramics International, 2012, 38(2):1027-1032.
【4】 MA B Y, LI Y, CUI S G,et al. Preparation and sintering properties of zirconia-mullite-corundum composites using fly ash and zircon[J]. Transactions of Nonferrous Metals Society of China, 2010, 20(12):2331-2335.
【5】 MENG B, PENG J H. Effects of in situ synthesized mullite whisker on flexural strength and fracture toughness of corundum-mullite refractory materials[J]. Ceramics International, 2012, 39(2):1525-1531.
【6】 ZANELLI C, DONDI M, RAIMONDO M,et al. Phase composition of alumina-mullite-zirconia refractory materials[J]. Journal of the European Ceramic Society, 2010, 30(1):29-35.
【7】 AKSEL C, RAND B, RILEY F L,et al. Thermal shock behaviour of magnesia-spinel composites[J]. Journal of the European Ceramic Society, 2004, 24(9):2839-2845.
【8】 刘漫红. 纳米材料及其制备技术[M]. 北京:冶金工业出版社, 2014.
【9】 BANERJEE A, DAS S, MISRA S, et al. Structural analysis on spinel (MgAl2O4) for application in spinel-bonded castable[J]. Ceramics International, 2009, 35(1):381-390.
【10】 REVERÍN H, GUTIÉRREZ-CAMPOS D, RODRǑGUEZ R M, et al. Chemical synthesis and thermal evolution of MgAl2O4 spinel precursor prepared from industrial gibbsite and magnesia powder[J]. Materials Letters, 2002, 56(1/2):97-101.
【11】 尹邦跃, 王零森. 3Y-TZP/Al2O3复合粉末的相变研究[J]. 硅酸盐学报, 2001, 29(1):1-7.
【12】 刘慷, 金兑源, 张立群. TiO2对糖心产精国品免费入口*完整版制备Pd/Al2O3-TiO2催化活性的影响[J]. 北京化工大学学报(自然科学版), 2005, 32(1):47-50.
【13】 MOHAMMAD-RAHIMI R, REZAIE H R, NEMATI A. Sintering of Al2O3-SiC composite from sol-gel method with MgO, TiO2 and Y2O3 addition[J]. Ceramics International, 2011, 37(5):1681-1688.
【14】 RYSHKEWITH D W. Oxide ceramics[M].[S.l.]:[s.n.], 1985.
【15】 TRIPATHI H S, MUKHERJEE B, DAS S, et al. Synthesis and densification of magnesium aluminate spinel:Effect of MgO reactivity[J]. Ceramics International, 2003, 29(8):915-918.
【16】 SARKAR R, DAS S K, BANERJEE G. Effect of additives on the densification of reaction sintered and presynthesised spinels[J]. Ceramics International, 2003, 29(1):55-59.
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