Comparative Study on Preparation of Al₂O₃-ZrO₂ Composite Powders by the Complexing Precipitate and Carbonblack Coating Methods

Abstract:

Al₂O₃-ZrO₂ composite powders were prepared by the Complexing precipitate method and Carbonblack coating method, and then the powders were characterized by laser particle size analyzer, XRD, and TEM. The results show that: the two methods are both can be used to prepare Al₂O₃-ZrO₂ composite powders. The particle size of the composite powders prepared by Carbonblack coating method is larger than that prepared by Complexing precipitate method. From TEM, it can be seen that the distributions of Al₂O₃ and ZrO₂ in the composite powders prepared by Complexing precipitate method are more uniform. ZrO₂ was coated by Al₂O₃ particles mostly, however, in the composite powders prepared by Carbonblack coating method, part of the particles agglomerated seriously.

• Periodical: Advanced Materials Research (Volume 721)
• Pages: 139-143
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.721.139
• Online since: July 2013
• Authors: Guang Liang Yuan, Qun Hu Xue, Yuan Yang
• Keywords: Alumina-Zirconia Composite Powders, Carbonblack Coating Method, Complexing Precipitate Method

References

[1] ZHOU Chuansheng.New Development of Refractory for Contiunous Casting[J]. Continuous Casting, 2003(1): 6.

[2] HE Zhongyang.Current Situation and Development trend of Functional Refractory for Steel Continuous Casting[J]. Refractory,2011,45(6):462-465.

[3] WANG Xinfu, LI Hongxia, YANG Bin. Review on Development of Tundish Nozzle for Billet Continuous Casting[J]. Continuous Casting, 2003,3:37-39.

[4] SONG Suge,WANG Xinzhi,WANG Sanzhong et a.l.Refractory Selection and Application in Modern Efficient Continuous Casting Process. China Metallurgy,2008,18(12):28-31.

[5] LI Xuewei, WANG Xinfu,ZHAO Hongbo,et a.l. Discussion about Damage Mechanism of Nozzle in Pperation[J]. Hebei Metallurgy, 2006,156(6):1-4.

[6] CAO Yi,XUE Qunhu,WU Zhihong et a.l.Preparation of Al2O3–ZrO2 Composite Powder Precursors by Compleximetry-precipitation Method[J]. Refractory,2006,40(5):362-365.

[7] BI Bo,XUE Qunhu. Preparation of Al2O3–ZrO2 Composite Powder by Carbon-enwrap Burning Method[J].Applied Chemical Industry,2007,36(2):148-150.

[8] WU Zhihong. A Study on the Refractory Structure Ceramic with Baddeleyit and Corundum Eutectoid Fine Crystallization [D]. Xi'an University of Architecture and Technology, 2005.

[9] ZHANG Huimei, XUE Qunhu, TIAN Xiaoli, HUANG Jingjing. Research on the Property of Gel Combining Al2O3–ZrO2 Composite ceramics [J].China Ceramics, 2011, 47(2):23-26.

[10] ZHU Dongdong, JIA Jianfeng, et a.l.Preparation and characterization of Al2O3/ZrO2 Composite powders [J]. Journal of Zhengzhou University:Natural Science Edition,2010,5(2):91-94.

[11] TIAN Xiaoli,XUE Qunhu,XUE Chongbo.Alumina-Zircona Composite Powder Prepared bu Sol-Gel Process[J].Journal of the Chinese Ceramic Society,2012,40(6):866-871.

[12] Jiang S, Stangle G C, Amarakoon V R W, et a.l Prepara-tion of nanometer ZrO2(6Y) powder by carbon-enwrapmethod[J]. JMaterRes, 1996, 11(9): 2318-2324.