Effect of Al2O3 and TiO2 Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method

PENG Zijun; LUO Xudong; YU Min; XIE Zhipeng

doi:10.11973/jxgccl201804008

Materials and Mechanical Engineering > 2018 > 42(4): 35-39. > DOI: 10.11973/jxgccl201804008

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 and Mechanical Engineering, 2018, 42(4): 35-39. DOI: 10.11973/jxgccl201804008

Citation:

PDF (6683 KB)

Effect of Al₂O₃ and TiO₂ Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method

1. School of High Temperature Materials and Magnesium Resource Engineering, Liaoning University of Science and Technology, Anshan 114051, China;
2. Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

More Information

Received Date: July 30, 2017
Revised Date: March 06, 2018

Graphical Abstract

Abstract

Abstract

MgO particles coated with Al₂O₃ and TiO₂ precursors, respectively, were prepared by coprecipitation method 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, sintering performance and thermal shock resistance 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 sintering performance and thermal shock resistance of the ceramics were the best.
- aluminium oxide,
- titanium oxide,
- magnesia ceramics,
- coprecipitation method,
- sintering performance,
- thermal shock resistance

FullText(HTML)

References (17)

References

[1]	张骋, 黄德信, 徐兵, 等. 氧化镁陶瓷抗热震性能[C]//第十五届全国高技术陶瓷学术年会论文集.沈阳:中国硅酸盐学会,2008:1207-1209.
[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对共沉淀法制备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.
[17]	BHADURI S, BHADURI S B. Microstructural and mechanical properties of nanocrystalline spinel and related composite[J]. Ceramics International, 2002, 28(2):152-158.

Cited By

Get Citation

PDF

XML

Article views (1) PDF downloads (1)

Turn off MathJax

Article Contents

Abstract

References

Effect of Al2O3 and TiO2 Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method

Abstract

References

Catalog

Export File

Citation

Format

Content

Effect of Al₂O₃ and TiO₂ Addition Amount on Properties of MgO-based Ceramics by Coprecipitation Method