Effect of SiO2 Micro-Powders on the Properties of Alumina-Based Ceramic Core

Li Ge Wang; Bin Zuo; Guang Zhi Zhu; En Ze Wang; Zheng Quan Zhang

doi:10.4028/www.scientific.net/AMR.554-556.731

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 554-556Effect of SiO2 Micro-Powders on the Properties of...

Effect of SiO₂ Micro-Powders on the Properties of Alumina-Based Ceramic Core

Abstract:

The influence of added quantity of SiO₂ micro-powder on ceramic core properties was investigated in this paper. The results show that, the quantity of added SiO₂ powder has significant effect on the properties of ceramic core, and the room temperature flexural strength of ceramic core samples, sintered at 1550°C for 4~5 hours' holding time, increases with the increasing quantity of SiO₂. The room temperature flexural strength can reach 35MPa, when the amount of SiO₂ powder is 15%. The XRD results show that new mullite phase was detected in the composite material, and that is the key factor that helps to increase the strength.

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Periodical:

Advanced Materials Research (Volumes 554-556)

Pages:

731-735

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.554-556.731

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Online since:

July 2012

Authors:

Li Ge Wang, Bin Zuo, Guang Zhi Zhu, En Ze Wang, Zheng Quan Zhang

Keywords:

Alumina, Ceramic Core, Mullite, Silicon Dioxide

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References

[1] L. Zhang, L. Cao, G. Liu, H. Wang. Theory and Practice of Near Net-shape Investment Casting, Beijing: National Defense Industry Press, 2007, 175-177.

Google Scholar

[2] C. H. Chao, H. Y. Lu. Optimal Composition of Zircon-Fused Silica ceramic Cores for Casting Superalloys, J. Am. Ceram. Soc. 2002, 85 (4): 773-779.

DOI: 10.1111/j.1151-2916.2002.tb00171.x

Google Scholar

[3] J. Ronald, S. Rodney. Ceramic Core and Method of Making, U. S. Patent No.6578623, 2003.

Google Scholar

[4] Kenichiro Takeishl, Kiyoshi Suenaga, Kazuo Uematsu. Gas Turbine Cooling Blade, United States Patent No. 6186740, 2001.

Google Scholar

[5] Hiroki Fukuno, Yasuoki Tomita, Kiyoshi Suenaga. Gas Turbine Cooling Moving Blade, United States Patent No.6254346, 2001.

Google Scholar

[6] H. H. Wu, D.C. Li, Y. P. Tang, B. Sun and D. Y. Xu. Gelcasting of Alumina Based Ceramic Cores Containing Yttria for Single Crystal and Directional Solidification Blades, Advances in Applied Ceramics, Vol.108, 406-140, 2009.

DOI: 10.1179/174367609x422045

Google Scholar