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Reza Beygi

Reza Beygi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-0110-1642
Education: PhD.
ScopusId: 36337544600
Faculty: Engineering
Address: Arak University
Phone: 086-32625824

Research

Title
Direct synthesis of Ti3AlC2-Al2O3 nanocomposite by mechanical alloying
Type
JournalPaper
Keywords
Ti3AlC2/Al2O3NanocompositeMechanical alloying
Year
2018
Journal Journal of Alloys and Compounds
DOI
Researchers Majid Zarezadeh Mehrizi ، Reza Beygi

Abstract

In this study, Ti3AlC2/Al2O3 nanocomposite powder was synthesized via mechanical alloying from TiO2, Al, and C as raw materials. Phase development and structural changes during ball milling were investigated by X-ray diffraction technique (XRD), field-emission gun scanning electron microscopy (FESEM) and transition electron microscopy (TEM). Results showed that TiAl, TiC and Al2O3 intermediate phases were formed after 20 h milling of starting materials. With the increase of milling time to 40 h, the desired Ti3AlC2/Al2O3 nanocomposite was achieved. It can be seen that Ti3AlC2 is not synthesized by a single reaction between TiO2, Al, and C and is occurred with a series of reactions between intermediate products (TiAl and TiC). TEM image of 40 h milled powder confirmed that the synthesized Ti3AlC2/Al2O3 powder has nanosized particles in the range of 50 nm.