Interface Optimization of Al₂O₃-Fe Composite Materials Prepared via Vacuum Sintering Method

Abstract:

In this paper, the effect of sintering temperature on the interfacial structure of the composite was investigated and three different formulation groups were used to compare the respective properties. To obtain a composite material with excellent interface, the law between reference number and performance is obtained. Through mixing, molding, sintering, sample preparation, scanning electron microscopic observation, energy spectrometer observation and analysis, the following conclusions can be drawn: As the temperature increases, the density and hardness increase. The sample melts at 1500 °C, and there is no specific data. When the temperature reaches 1450 °C, the density and hardness reach the highest. When the formulation is Fe:Al₂O₃:SiO₂=18:1:1 and the temperature reaches 1450 °C, the properties of the sample materials are optimized. The density is as high as 95% and the hardness reaches 42.9HBW.

• Periodical: Key Engineering Materials (Volume 861)
• Pages: 233-237
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.861.233
• Online since: September 2020
• Authors: Rui Hua Wang, Ai Xia Chen, Chao Yang, Fang Wang, Ming Han Xu, Shi Bin Li, Jie Guang Song*, Lin Chen
• Keywords: Al₂O₃, Composite Material, Fe, Interface Optimization, Vacuum Sintering

References

[1] H.Y. Li, P. Motamedi, J. D. Hogan, Characterization and mechanical testing on novel (γ + α2)- TiAl/Ti3Al/Al2O3 cermet, Mater. Sci. Eng. A. 750 (2019) 152-163.

DOI: 10.1016/j.msea.2019.02.039

[2] J.G. Song, Y. Liu, Ch.X. Wu, Fabrication and properties of Al2O3-Al cermet materials using different raw material composition parameter. J. Ceram. Process. Res. 21 (2020) 21-25.

DOI: 10.36410/jcpr.2020.21.1.21

[3] L.B. Zhao, N. Lin, Y.H. He, Improvement in microstructure and properties of Ti(C,N)-based cermets with Ruthenium additions, Ceram. Int. 44 (2018) 17553-17561.

DOI: 10.1016/j.ceramint.2018.06.156

[4] T. Gestrich, A. Kaiser, J. Potschke, J. Meinl, S. Hohn, Thermal behaviour of cermets and hardmetals during debinding and sintering, Int. J. Ref. Met. Hard Mater. 73 (2018) 210-214.

DOI: 10.1016/j.ijrmhm.2018.01.008

[5] X.H. Liu, M.L. Zhong, X.Y. Chen, Z.W. Zhao, Separating lithium and magnesium in brine by aluminum-based materials, Hydromet. 176 (2018) 73-77.

DOI: 10.1016/j.hydromet.2018.01.005

[6] 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

[7] 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

[8] T. Liu, F.C. Li, A.D. Wang, L. Xie, Y. Yang, High performance Fe-based nanocrystalline alloys with excellent thermal stability, J. Alloy. Compd. 776 (2019) 606-613.

DOI: 10.1016/j.jallcom.2018.10.319

[9] Y. Lee, J. Jeon, S. Nam, T. Jang, H. Choi, Soft magnetic properties of Fe-based amorphous /nanocrystalline hybrid materials, Powder Tech. 339 (2018) 440-445.

DOI: 10.1016/j.powtec.2018.08.037

[10] B. Li, Z.G. Zheng, H.Y. Yu, D.C. Zeng, Improved permeability of Fe based amorphous magnetic powder cores by adding Permalloy, J.Magn. Magn. Mater. 438 (2017) 138-143.

DOI: 10.1016/j.jmmm.2017.04.082

[11] M.C. Rodríguez, A. Munoz, A.D. Rodríguez, Creep study on alumina and alumina/SWCNT nanocomposites, J. Eur. Ceram. Soc. 38 (2018) 5497-5502.

DOI: 10.1016/j.jeurceramsoc.2018.08.013

[12] 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