Effect of Al2O3 Powder on Properties of Fumed Silica Thermal Insulating Composites Using Mechanofusion Technique

Lu Han; Lei Yuan; Jia Zhan Liu; Jing Kun Yu

doi:10.4028/www.scientific.net/AMM.148-149.1011

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 148-149Effect of Al2O3 Powder on Properties of Fumed...

Effect of Al₂O₃ Powder on Properties of Fumed Silica Thermal Insulating Composites Using Mechanofusion Technique

Abstract:

This study describes the manufacturing process of thermal insulating composites which made from fumed silica powder, reinforcing fibre and other additives using advanced mechanofusion technique. The research focuses on the effect and mechanism of Al₂O₃ powder on thermal insulating composites, which using as high temperature shrinkage inhibitors to restrain sintering in fumed silica compacts at high temperatures. The results show that nanosize Al₂O₃ powder can effectively improve the volume stability of the compacts above 800°C, but which has little influence on thermal conductivity at higher temperatures. The compacts prepared in this study exhibit fracture strength of 0.26 MPa at room temperature, thermal conductivity of 0.0336 W/(m•K) at 1000°C and tiny volume shrinkage about 1.1% at 1000°C for 12h.

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Periodical:

Applied Mechanics and Materials (Volumes 148-149)

Pages:

1011-1015

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.148-149.1011

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Online since:

December 2011

Authors:

Lu Han, Lei Yuan, Jia Zhan Liu, Jing Kun Yu

Keywords:

Al₂O₃ Powder, Fumed Silica Powder, Mechanofusion, Thermal Conductivity (TC), Volume Shrinkage

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References

[1] J.Wang, J.Kuhn, X.Lu: Journal of Non-Crystalline Solids 186 (1995) 296-300.

Google Scholar

[2] Zhengsheng Deng, Jue Wang, Aimei Wu et al: Journal of Non-Crystalline Solids 225 (1998) 101-104.

Google Scholar

[3] Pradip B.Sarawade, Jong-Kol Kim, Askwar Hilonga et al: Microporous and Mesoporous Materials 139 (2011) 138-147.

Google Scholar

[4] George W.Scherer: Journal of Non-Crystalline Solids 215 (1997) 155-168.

Google Scholar

[5] A.Venkateswara Rao, Manish M.Kulkarni: Material Chemistry and Physics 77 (2002) 819-825.

Google Scholar

[6] George W. Scherer, Siv Haereid, Elin Nilsen et al: Journal of Non-Crystalline Solids 202 (1996) 42-52.

Google Scholar

[7] Hiroya Abe, Isami Abe, Kazuyoshi Sato et al: Communications of the American Ceramic Society, 2005, 88(5), 1359-1361.

Google Scholar

[8] Isami Abe, Kazuyoshi Sato, Hiroya Abe et al: Advanced Powder Technology 19 (2008) 311-320.

Google Scholar

[9] Makio NAITO, Akira KONDO and Toyokazu YOKOYAMA: ISIJ International, 1993, 33(9), 915-924.

Google Scholar

[10] Guo shi-ju: The theory of powder sintering. Metallurgical Industry Press, beijing (2002).

Google Scholar

[11] R.Saliger, T.Heinrich, T.Gleissner et al: Journal of Non-Crystalline Solids 186 (1995) 113-117.

DOI: 10.1016/0022-3093(95)00080-1

Google Scholar