Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-29T11:43:42.106Z Has data issue: false hasContentIssue false
  • English
  • Français

Al-SiC Nanocomposites Produced by Ball Milling and Spark Plasma Sintering

Published online by Cambridge University Press:  10 April 2013

R.C. Picu ,
J.J. Gracio ,
G.T. Vincze ,
N. Mathew ,
T. Schubert ,
A.B. Lopez  and
C. Buchheim
R.C. Picu
Affiliation:
Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
J.J. Gracio
Affiliation:
Center for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193, Portugal.
G.T. Vincze
Affiliation:
Center for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193, Portugal.
N. Mathew
Affiliation:
Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
T. Schubert
Affiliation:
Fraunhofer Institute for Manufacturing Technologies and Advanced Materials IFAM, Dresden, Germany.
A.B. Lopez
Affiliation:
CICECO, Department of Ceramic and Glass, University of Aveiro, 3810-193, Portugal.
C. Buchheim
Affiliation:
Center for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193, Portugal.
Get access

Abstract

In this work Al-SiC nanocomposites were prepared by high energy ball milling followed by spark plasma sintering of the powder. For this purpose Al micro-powder was mixed with 50 nm diameter SiC nanoparticles. The final composites had grains of approximately 100 nm dimensions, with SiC particles located mostly at grain boundaries. To characterize their mechanical behavior, uniaxial compression, micro- and nano-indentation were performed. Materials with 1vol% SiC as well as nanocrystalline Al produced by the same means with the composite were processed, tested and compared. AA1050 was also considered for reference. It was concluded that the yield stress of the nanocomposite with 1 vol% SiC is 10 times larger than that of regular pure Al (AA1050). Nanocrystalline Al without SiC and processed by the same method has a yield stress 7 times larger than AA1050. Therefore, the largest increase is due to the formation of nanograins, with the SiC particles’ role being primarily that of stabilizing the grains. This was demonstrated by performing annealing experiments at 150°C and 250°C for 2h, in separate experiments.

Keywords

sinteringAlnanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1513: Symposium GG – Mechanical Behavior of Metallic Nanostructured Materials , 2013 , mrsf12-1513-gg10-03
Copyright
Copyright © Materials Research Society 2013

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Lan, J., Yang, Y., and Li, X., Mat. Sci. Eng. A 386, 284 (2004).10.1016/S0921-5093(04)00936-0CrossRefGoogle Scholar
Tang, F., Hagiwara, M., and Schoenung, J.M., Scripta Mater. 53, 619 (2005).10.1016/j.scriptamat.2005.05.034CrossRefGoogle Scholar
Cheng, N.P., Zeng, S.M., and Liu, Z.Y., J. Mater.Proc. Technol. 202, 27 (2008).10.1016/j.jmatprotec.2007.08.044CrossRefGoogle Scholar
Poirier, D., Drew, R.A.L., Trudeau, M.L., and Gauvin, R., Mat. Sci. Eng. A 527, 7605 (2010).10.1016/j.msea.2010.08.018CrossRefGoogle Scholar
Saberi, Y., Zebarjad, S.M., and Akbari, G.H., J. Alloys Comp. 484, 637 (2009).10.1016/j.jallcom.2009.05.009CrossRefGoogle Scholar
Narayanasamy, R., Ramesh, T., and Prabhakar, M., Mat. Sci. Eng. A 504, 13 (2009).10.1016/j.msea.2008.11.037CrossRefGoogle Scholar
Candido, G.M., Guido, V., Silva, G., and Cardoso, K.R., Mat. Sci. Forum. 660–661, 317 (2010).10.4028/www.scientific.net/MSF.660-661.317CrossRefGoogle Scholar
Zadra, M., Casari, F., Girardini, L., and Molinari, A., Powder Metall. 50, 40 (2007).10.1179/174329007X186417CrossRefGoogle Scholar