Effect of Molding Processing on Properties of Al₂O₃-Al Cermet Prepared via Powder Metallurgy Method

Abstract:

Cermet while maintaining the excellent properties of ceramic materials, but also have the advantages of a metal material, is an important new engineering materials. In this paper, Al-Al₂O₃ cermet is prepared using different molding process via the powder metallurgy method to study the properties of Al-Al₂O₃ cermet. The conclusions are shown the density of the initial and late increase is not obvious with the cermet body forming pressure increases, but the increase in density of 20-30MPa is more obvious. The density of the cermet material increases with prolonging holding pressure time is shown, the initial increase speed is faster, and the later growth rate becomes weaker. In the different molding pressure, the pressure is 40MPa and 15min, sintering temperature is 700°C and 1h, the sample density is 2.084g/cm³, the highest density, the best performance, aluminum and alumina distribution is the most uniform.

• Periodical: Solid State Phenomena (Volume 281)
• Pages: 303-308
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.281.303
• Online since: August 2018
• Authors: Rui Hua Wang, Xiao Bo Bai, Xiao Dong Jiang, Deng Liang Yi, Fang Wang, Ai Xia Chen, Jie Guang Song, Lin Chen
• Keywords: Alumina, Cermet Materials, Molding Process, Powder Metallurgy Method

References

[1] X.P Ma, S.Y Wang, W. Chen, Deformation rule of cermets at high temperature, J. Univ. Sci. Tech. Beijing. 29 (2007) 220-225.

[2] Z.L. Zhao, L. An, D.M Wu, Wear resistance of cermet WC-20%Co toughened and reinforced with ZrO2(3Y), Trans. Mater. Treat. 33 (2012) 26-30.

[3] S. Das, S. Datta, A.K. Mukhopadhyay, Al-Al2O3 core-shell composite by microwave induced oxidation of aluminium powder, Mater. Chem. Phys. 122 (2010) 574-581.

DOI: 10.1016/j.matchemphys.2010.03.049

[4] M. Allam, Wear and friction of Al-Al2O3 composites at various sliding speeds, J. Mater. Sci. 43 (2008) 5797-5803.

DOI: 10.1007/s10853-008-2867-8

[5] A. Jbara, Z. Othaman, A. Ati, M.A. Saeed, Characterization of Al2O3 nanopowders synthesized by co-precipitation method, Mater. Chem. Phys. 188 (2017) 24-29.

DOI: 10.1016/j.matchemphys.2016.12.015

[6] 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

[7] Z.Y. Liu, K. Zhao, B.L. Xiao, W.G. Wang, Z.Y. Ma, Fabrication of CNT/Al composites with low damage to CNTs by a novel solution-assisted wet mixing combined with powder metallurgy processing, Mater. Design. 97 (2016) 424-430.

DOI: 10.1016/j.matdes.2016.02.121

[8] Z.Y. Cai, C. Zhang, R.C. Wang, C.Q. Peng, K. Qiu, Y. Feng, Preparation of Al-Si alloys by a rapid solidification and powder metallurgy route, Mater. Design 87 (2015) 996-1002.

DOI: 10.1016/j.matdes.2015.08.106

[9] K.M. Chen, D.A. Tsai, H.C. Liao, I.G. Chen, W.S. Hwang, Investigation of Al-Cr alloy targets sintered by various powder metallurgy methods and their particle generation behaviors in sputtering process, J. Alloy. Compd. 663 (2016) 52-59.

DOI: 10.1016/j.jallcom.2015.11.231

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

DOI: 10.1007/s12034-015-1001-1

[11] 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

[12] J. Hao, M. Dan, Y.Q. Li, R.J. Liao, G. Chen, Cellulosic particles accumulation and conductivity characteristics of natural ester used in power transformer, Proced. Eng. 202 (2017) 168-175.

DOI: 10.1016/j.proeng.2017.09.704

[13] C. Natthaphon, A.D. Ebner, M. Natenapit, A. James, Ritter Simulation of dynamic magnetic particle capture and accumulation around a ferromagnetic wire, J. Magnet. Magnet. Mater. 428 (2017) 493-505.

DOI: 10.1016/j.jmmm.2016.12.033

[14] W.Y. Ma, B.Y. Wang, J.G. Lin, X.F. Tang, Influence of process parameters on properties of AA6082 in hot forming process, Trans. Nonf. Meta. Soc. Chin. 27 (2017) 2454-2463.

DOI: 10.1016/s1003-6326(17)60272-3

[15] R.U. Kumar, P.R. Reddy, A.V.S. Ramaraju, Role of viscosity in hydro-forming process, Mater. Today 4 (2017) 790-798.