Paper Titles
Effects of Mo(Ni) on Valence Electron Structures of TiC/Fe Cermets
p.1119
Preparation and Phase Analysis of Fe-SiAlON-MoSi2 Composites
p.1123
Feasibility Analysis of Self-Reactive Spray Forming TiC-TiB2-Based Composite Ceramic Preforms
p.1126
Preparation and Characterization of Ti0.6Cr0.4OxNy Nano-Sized Powder
p.1130
Hydration Resistance of Al/AlN Bonded Corundum Based Multiphase Material
p.1133
WC-Co Tool Failure Mechanism in Titanium Alloys Machining
p.1137
Effect of Carbon Source on In Situ Carbothermic Reduction Fabricating Steel-Bonded Cemented Carbide GT35 from Ilmenite
p.1140
Intermetallic Alloys Ni3Si and Ni3(Si,Ti): Microstructures and Properties
p.1143
Thermal Conductivity of Sol-Gel Bonded Castables
p.1146

Hydration Resistance of Al/AlN Bonded Corundum Based Multiphase Material

Article Preview

Abstract:

The Al/AlN bonded corundum based multiphase material was prepared by raw materials of fused alumina and metallic aluminum powder by in situ reaction at 1100°C for 3h in N2 . The XRD analysis showed that the mineral phases of prepared material are corundum, metallic aluminum and AlN respectively. The SEM investigation revealed that both tetragonal whiskers and hexagon powders of AlN were formed. The results of hydration tests indicated that the rate of weight gain and pulverization of the material were negligible and the ratio of residual crushing strength was kept at a high level. The XRD patterns of samples after hydration tests identified that the AlN phase still remained although a small amount of AlOOH and Al(OH)3 was formed due to the hydration of AlN. It is believed that the limited hydration of AlN should be contributed to the dissolution of O element to AlN. The hydration mechanism of AlN was discussed.

You might also be interested in these eBooks
High-Performance Ceramics V View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Pages:

1133-1136

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.1133

Citation:

Cite this paper

Online since:

February 2008

Authors:

Bin Xiang Fang, Bo Quan Zhu, Wen Jie Zhang, Xue Dong Li, Zheng Yun Fan

Keywords:

Aluminum Nitride (AlN), Corundum, Hydration, In Situ Reaction

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] J.A. Kohn, P.G. Cotter and R.A. Potter: Ame. Mineralo. Vol. 41 (1956), p.355.

Google Scholar

[2] L. Sheppard: J. Am. Ceram. Soc. Vol. 69 (1990), p.1801.

Google Scholar

[3] L.D. Gu: Special Refractory (Metallurgical Industry Press, Beijing, China, 1982), p.154.

Google Scholar

[4] H.P. Zhou, H. Chen, Y. Wu, et al: J. Mater. Sci. Vol. 33 (1998), p.4249.

Google Scholar

[5] Y.W. Li, N. Li, X.X. Yi, et al: J. Wuhan Uni. Sci. & Tech. Vol. 24.

Google Scholar

[4] (2001), p.331.

Google Scholar

[6] X.C. Yang, C.Z. Yao, Y. Gao, et al: Ref. Vol. 37.

Google Scholar

[5] (2003), p.271.

Google Scholar

[7] J.L. Bu, Z.D. Yu, X.C. Yang, et al: Iron Steel Vanadium Titanium Vol. 25.

Google Scholar

[4] (2004), p.24.

Google Scholar

[8] Z.D. Yu, J.L. Bu, R.S. Wang, et al: Ref. Vol. 39.

Google Scholar

[2] (2005), p.107.

Google Scholar

[9] J.L. Bu, X.C. Yang, Z.F. Wang, et al: Chi. J. Pro. Engi. Vol. 5.

Google Scholar

[3] (2005), p.313.

Google Scholar

[10] A.V. Virkar, T.B. Jackson and R.A. Cutler: J. Am. Ceram. Soc. Vol. 72 (1989), p. (2031).

Google Scholar