Densification Mechanism of Al2O3/Al Metallic Ceramics Prepared via Powder Metallurgy Method

Article Preview

Abstract:

Alumina ceramics with good mechanical and corrosion resistance, is one of the most widely used engineering ceramics. The aluminum has a high strength, high conductivity, high plasticity, etc. than aluminum ceramics used in more and more industries. In this paper, aluminum and alumina powder as raw material, mixing, forming, sintering and a series of processes for preparing the alumina/aluminum metallic ceramic materials, through performance testing and analysis can be found in the ratio of raw materials 50wt% Al, 50wt % Al2O3 relatively good moldability. After sintering, after measuring the density contrast is found better density in the pressing process pressure of 20MPa and holding pressure time for 20min. By comparing the sintering process, after the interface structure by scanning electron microscopy and found help improve density through the secondary sintering metallic ceramic materials.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

189-193

Citation:

Online since:

January 2017

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] G. Bilir, J. Liguori, Laser diode induced white light emission of γ-Al2O3 nano-powders, J. Lumin. 153 (2014) 350-355.

DOI: 10.1016/j.jlumin.2014.03.065

Google Scholar

[2] J.M. Fang, X.Y. Huang, X. Ouyang, X. Wang, Study of the preparation of γ-Al2O3 nano-structured hierarchical hollow microspheres with a simple hydrothermal synthesis using methylene blue as structure directing agent and their adsorption enhancement for the dye, Chem. Eng. J. 270 (2015).

DOI: 10.1016/j.cej.2015.02.020

Google Scholar

[3] C. Ottone, V.F. Rivera, M. Fontana, K. Bejtka, B. Onida, V. Cauda, Ultralong and mesoporous ZnO and γ-Al2O3 oriented nanowires obtained by template-assisted hydrothermal approach, J. Mater. Sci. Tech. 30 (2014) 1167-1173.

DOI: 10.1016/j.jmst.2014.11.005

Google Scholar

[4] J. H Xu, K. Bandyopadhyay, D. Jung, Experimental investigation on the correlation between nano-fluid characteristics and thermal properties of Al2O3 nano-particles dispersed in ethylene glycol-water mixture, Int. J. Heat Mass Trans. 94 (2016).

DOI: 10.1016/j.ijheatmasstransfer.2015.11.056

Google Scholar

[5] S. Singh, R. Singh, Effect of process parameters on micro hardness of Al-Al2O3 composite prepared using an alternative reinforced pattern in fused deposition modelling assisted investment casting, Rob. Comp. Integ. Manuf. 37 (2016) 162-169.

DOI: 10.1016/j.rcim.2015.09.009

Google Scholar

[6] M. Ashida, Z. Horita, Effects of ball milling and high-pressure torsion for improving mechanical properties of Al-Al2O3 nanocomposites, J. Mater. Sci. 47 (2012) 7821-7827.

DOI: 10.1007/s10853-012-6679-5

Google Scholar

[7] H. R. Derakhshandeh, Effect of ECAP and extrusion on particle distribution in Al-nano-Al2O3 composite, Bull. Mater. Sci. 38 (2015) 1205-1212.

DOI: 10.1007/s12034-015-1001-1

Google Scholar

[8] M.Z. Mehrizi, R. Beygi, G. Eisaabadi, Synthesis of Al/TiC-Al2O3 nanocomposite by mechanical alloying and subsequent heat treatment, Ceram. Int. 42 (2016) 8895-8899.

DOI: 10.1016/j.ceramint.2016.02.144

Google Scholar

[9] J.Y. Xu, B.L. Zou, S.Y. Tao, M.X. Zhang, X.Q. Cao, Fabrication and properties of Al2O3-TiB2-TiC/Al metal matrix composite coatings by atmospheric plasma spraying of SHS powders, J. Alloy. Compd. 672 (2016) 251-259.

DOI: 10.1016/j.jallcom.2016.02.116

Google Scholar

[10] A. Poulia, P.M. Sakkas, D.G. Kanellopoulou, G. Sourkouni, C. Legros, Chr. Argirusis, Preparation of metal–ceramic composites by sonochemical synthesis of metallic nano-particles and in-situ decoration on ceramic powders, Ultrason. Sonochem. 31 (2016).

DOI: 10.1016/j.ultsonch.2016.01.031

Google Scholar

[11] G. Miranda, M. Buciumeanu, S. Madeira, O. Carvalho, D. Soares, F.S. Silva, Hybrid composites Metallic and ceramic reinforcements influence on mechanical and wear behavior, Comp. Part B Eng. 74 (2015) 153-165.

DOI: 10.1016/j.compositesb.2015.01.007

Google Scholar

[12] G.Q. Xie, D.V.L. Luzgin, F. Wakai, H. Kimura, A. Inoue, Microstructure and properties of ceramic particulate reinforced metallic glassy matrix composites fabricated by spark plasma sintering, Mater. Sci. Eng. B 148 (2008) 77-81.

DOI: 10.1016/j.mseb.2007.09.027

Google Scholar