INVESTIGATION ON HARDNESS AND POROSITY OF AL-CNT AND AL2024-CNT NANOCOMPOSITES PRODUCED BY COLD PRESS-SINTERING AND SPARK PLASMA SINTERING (SPS) METHODS

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ETEMADI MALEKI SANAM; ETEMADI ELHAM; SHABESTARI SAEED; RIKHTEGAR FARSHID

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Journal: METALLURGICAL ENGINEERING Year:2017 | Volume:20 | Issue:3 (67) Page(s): 209-218

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Title

INVESTIGATION ON HARDNESS AND POROSITY OF AL-CNT AND AL2024-CNT NANOCOMPOSITES PRODUCED BY COLD PRESS-SINTERING AND SPARK PLASMA SINTERING (SPS) METHODS

Author(s)

ETEMADI MALEKI SANAM | ETEMADI ELHAM | SHABESTARI SAEED | RIKHTEGAR FARSHID | Issue Writer Certificate

Keywords

NANOCOMPOSITEQ2

CARBON NANOTUBEQ2

POWDER METALLURGYQ2

SPARK PLASMA SINTERINGQ2

COLD PRESSINGQ2

Abstract

In this paper, the effects of porosity of pure Al and Al2024 matrix NANOCOMPOSITEs reinforced by CARBON NANOTUBEson their final properties have been studied through sintering parameters such as temperature and consolidation methods. For this purpose, powder composite was prepared using flake POWDER METALLURGY method, including the dispersion of particles with ultrasonic waves and chemical mixing. Consequently, the final parts were produced in two different strengthening procedures consisting of SPARK PLASMA SINTERING and cold press-sintering. Finally, the samples were treated under hot extrusion in order to improve the mechanical properties. The experiments of densitometry, hardness and metallography were performed on final products. It was concluded that the SPS method was a better technique for processing of NANOCOMPOSITEs to achieve the optimal properties and also, the porosity of SPS samples has been considerably decreased after hot extrusion as well as the increasing of their hardness. The hardness and porosity of Al-1.5%wt.CNT, produced by SPS plus hot extrusion steps, were measured 62.45 HB and 1% respectively. In order to investigate the formation of aluminum carbide at the interface of CNT fibers and matrix, Raman spectroscopy and XRD were used which no peak for formed carbide appeared in results of both experiments.

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APA: Copy

ETEMADI MALEKI, SANAM, ETEMADI, ELHAM, SHABESTARI, SAEED, & RIKHTEGAR, FARSHID. (2017). INVESTIGATION ON HARDNESS AND POROSITY OF AL-CNT AND AL2024-CNT NANOCOMPOSITES PRODUCED BY COLD PRESS-SINTERING AND SPARK PLASMA SINTERING (SPS) METHODS. METALLURGICAL ENGINEERING, 20(3 (67) ), 209-218. SID. https://sid.ir/paper/112392/en

Vancouver: Copy

ETEMADI MALEKI SANAM, ETEMADI ELHAM, SHABESTARI SAEED, RIKHTEGAR FARSHID. INVESTIGATION ON HARDNESS AND POROSITY OF AL-CNT AND AL2024-CNT NANOCOMPOSITES PRODUCED BY COLD PRESS-SINTERING AND SPARK PLASMA SINTERING (SPS) METHODS. METALLURGICAL ENGINEERING[Internet]. 2017;20(3 (67) ):209-218. Available from: https://sid.ir/paper/112392/en

IEEE: Copy

SANAM ETEMADI MALEKI, ELHAM ETEMADI, SAEED SHABESTARI, and FARSHID RIKHTEGAR, “INVESTIGATION ON HARDNESS AND POROSITY OF AL-CNT AND AL2024-CNT NANOCOMPOSITES PRODUCED BY COLD PRESS-SINTERING AND SPARK PLASMA SINTERING (SPS) METHODS,” METALLURGICAL ENGINEERING, vol. 20, no. 3 (67) , pp. 209–218, 2017, [Online]. Available: https://sid.ir/paper/112392/en

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